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HomeDual Batteries DCS 300AH Dual Lithium Battery
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DCS 300AH Dual Lithium Battery

€ 3,398.00

The DCS LiFePO4 300ah Lithium Battery is designed to meet the needs of high-demand energy systems. This 300ah Lithium Ion Battery is perfect for large-scale storage applications, offering exceptional capacity and durability. It’s an ideal choice for those who require a robust and long-lasting power source.

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Description

Description

300ah lithium battery
12v 300ah lithium ion battery

Single Battery Specifications

Specifications: -
Nominal Voltage 12.8V
Nominal Capacity (20Hr) 150Ah
Case Dimensions (L x W x H) 420mm x 325mm x 125mm
Weight 24.0Kgs
Cycling voltage 12.8V ~ 14.6V
Charge voltage 13.7V ~ 14.6V
Float Voltage 13.5V ~ 14.0V
Maximum Charge Current 150A
Recommended Charge Current ≤130A
Maximum Discharge Current ≤250A
DCS BMS (internal) DCS active cell management system, over/under voltage, over current charge/discharge, low/high temperature protections
Cell Chemistry DCS 3.2V 5.0 - 7.2Ah Cylindrical (LifePO4)
Cycle Performance 2500 Cycles @ 100% DOD
LCA 1200A
Ingress Protection IP67 (Fully submersible for up to 30mins)
Case Metal with white pearlescent finish
Operating temp Range -25 to +110 degrees C
Terminals Push-lock terminals suitable for 50/35mm cables
Parallel Connections YES
Series Connections NO
Warranty 5 years
Certifications UN 38.3, UL 1642, IEC 62133 & 62619, CE

DCS High Performance 2C Charge & Discharge Curves

Charge Curve

DCS High Performance 2C Cylindrical Cells

Discharge Curves

Voltage (V)

Capacity (%)

Voltage (V)

Capacity (%)

DCS Bluetooth Technology powered by DCS LFP, this APP is only for DCS LFP batteries which is based on BLE 4.0 technology.
DOWNLOAD APP (DCS LFP)

This App provides comprehensive monitoring for DCS LFP batteries, including:

  • SOC%
  • Time Remaining
  • Battery Pack Voltage, Power & Current
  • Battery Management MOSFET Temperature
  • Individual Cell Status with balancing indicators.
  • Connectivity distance up to 10 meters.

Available on Android & Apple Devices

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Choose Our LiFePO4 300ah Lithium Battery for Robust and Eco-Friendly Power Storage. Our 300ah Lithium Ion Battery Is Perfect for Extensive Power Demands.

 

300ah lithium batteryAre you tired of constantly dealing with the limitations of traditional batteries? At DCS Lithium Batteries, we understand the challenges you face in finding reliable, long-lasting, and efficient energy solutions. If you are on the lookout for a 300ah lithium battery, you have landed in the right place. DCS has got the perfect solution for you.

At DCS Lithium Batteries, we understand that every energy requirement is unique. That’s why our products are tailored to offer flexibility and scalability. From compact solutions for portable power needs to robust systems for large-scale energy storage, our batteries are versatile enough to suit a wide range of applications.

Introducing the 300ah Lithium Battery – A New Era in Energy Storage

The 300ah Lithium Battery marks a significant milestone in energy storage technology. This powerhouse battery, offered by DCS Lithium Batteries, is not just a product but a revolution in the way we store and use energy. With its impressive capacity and longevity, it is designed to meet the growing demands of both commercial and residential energy needs. The 300ah model stands out for its advanced lithium-ion technology, ensuring efficient energy storage and a longer lifespan compared to traditional lead-acid batteries.

Incorporating cutting-edge technology, the 300ah Lithium Battery is engineered for optimal performance. It features a robust build designed to withstand diverse environmental conditions, making it a reliable choice for various applications. The integration of smart technology allows for seamless monitoring and management of power usage, ensuring you get the most out of your energy storage solution. This battery is not just an upgrade; it’s a leap towards a more sustainable and efficient future in energy management.

How Can a 300ah Lithium Battery Transform Your Power Management?

The transformational impact of a 300ah Lithium Battery on power management is profound. Firstly, its high capacity ensures an uninterrupted power supply, making it ideal for critical applications where consistent energy availability is paramount. This is especially beneficial for businesses and homes that require a stable and reliable power source. Secondly, the battery’s efficient charging and discharging capabilities mean that it can handle high loads without compromising performance, thus offering a seamless energy experience.

Moreover, the 300ah battery’s compatibility with renewable energy sources, like solar and wind power, makes it an integral part of sustainable power solutions. It allows for the effective storage of excess energy generated, which can be used during peak demand times or low production periods. This not only reduces reliance on the grid but also lowers energy costs significantly. By integrating this battery into your power management system, you are not just optimising energy usage but also contributing to a greener and more sustainable future.

The Advantages of Choosing a 300ah Lithium Ion Battery for Long-Term Use

Opting for a 300ah Lithium Ion Battery from DCS Lithium Batteries presents numerous long-term advantages;

  • Extended Lifespan: These batteries are designed to last significantly longer than traditional batteries, reducing the need for frequent replacements.
  • Consistent Performance: They maintain a steady power output, ensuring a reliable energy supply over time.
  • Low Maintenance: Unlike other battery types, lithium-ion batteries require minimal upkeep, saving time and maintenance costs.
  • Eco-Friendly: With no harmful emissions, they are a greener choice for energy storage.
  • Space Efficiency: Their compact design allows for more efficient use of space.
  • Safety: Built-in safety features prevent common issues like overheating and short-circuiting.

These benefits make the 300ah Lithium Ion Battery an ideal choice for those seeking a dependable, long-term energy storage solution.

Is a 300ah Lithium Ion Battery the Right Choice for Your Energy Needs?

300ah lithium ion batteryDetermining whether a 300ah Lithium Ion Battery is the right fit for your energy needs involves considering several factors. This battery is particularly suited for applications that demand high capacity and durability. It is an excellent choice for powering homes, businesses, and even recreational vehicles, where consistent and reliable energy is crucial. Additionally, for those looking to integrate renewable energy solutions, such as solar panels, this battery offers the perfect complement, ensuring that excess energy is efficiently stored and available when needed.

However, it’s important to assess your specific energy requirements and usage patterns. The 300ah battery is designed for scenarios where energy demands are high and the need for a stable power supply is critical. If your energy usage is lower or if you require a more portable solution, a smaller-capacity battery might be more appropriate. Consulting with a DCS Lithium Batteries expert can provide personalised advice, ensuring you make an informed decision that aligns with your energy goals.

Maximising Efficiency with a 300ah Battery in Renewable Energy Systems

Integrating a 300ah battery into renewable energy systems significantly enhances efficiency. This battery’s high capacity makes it an ideal storage solution for solar and wind energy, capturing excess power during peak production times. This stored energy can then be used during periods of low production, ensuring a consistent energy supply and reducing reliance on traditional power grids. This not only maximises the use of renewable energy but also leads to substantial savings on energy bills.

Furthermore, the 300ah battery’s advanced technology allows for smart energy management. It can be integrated with energy management systems to optimise charging and discharging cycles based on energy production and consumption patterns. This intelligent approach to energy storage not only prolongs the battery’s lifespan but also ensures that renewable energy systems operate at peak efficiency, contributing to a more sustainable and eco-friendly energy landscape.

What Sets the 300ah Battery Apart in Today’s Market?

The 300ah battery from DCS Lithium Batteries stands out in the market for several key reasons. Enlisted below are a few of the many reasons that set the DCS 300ah battery system apart;

  • Advanced Technology: Utilising the latest in lithium-ion technology, it offers superior performance and longevity.
  • High Capacity: Its 300ah capacity ensures ample energy storage, suitable for a wide range of applications.
  • Durability: Designed to withstand various environmental conditions, it promises reliability and a long service life.
  • Smart Features: Integrated smart technology for efficient energy management sets it apart from conventional batteries.
  • Eco-Friendly: As a green energy solution, it aligns with modern sustainability goals.

These distinguishing features make the 300ah battery a top choice for consumers and businesses looking for a high-quality, reliable energy storage solution.

300 Amp Deep Cycle Battery – The Powerhouse for Heavy-Duty Applications

The 300 amp deep cycle battery from DCS Lithium Batteries is a true powerhouse designed to meet the demands of heavy-duty applications. Its robust construction and high energy density make it ideal for scenarios that require a durable and long-lasting power source. This includes industrial equipment, large-scale renewable energy systems, and even marine applications. The battery’s ability to deliver consistent power over extended periods makes it a reliable choice for applications where energy demands are high and continuous.

In addition to its impressive performance, the 300 Amp Deep Cycle Battery is also designed with safety in mind. It features advanced safety mechanisms to prevent issues like overcharging and deep discharging, ensuring both the longevity of the battery and the safety of the users. This focus on both performance and safety makes the 300 Amp battery a preferred choice for demanding applications.

How Does a 300 Amp Deep Cycle Battery Enhance Off-Grid Living?

For individuals and communities living off-grid, a 300 amp deep cycle battery can significantly enhance their quality of life. This battery’s high capacity and efficiency make it an ideal choice for storing energy generated from renewable sources like solar panels or wind turbines. Here’s how it benefits off-grid living;

  • Reliable Power Supply: Ensures a consistent and uninterrupted power source, crucial for off-grid living.
  • Energy Independence: Reduces reliance on external power sources, promoting self-sufficiency.
  • Cost-Effective: Minimises energy costs by maximising the use of renewable energy.
  • Eco-Friendly: Supports a sustainable lifestyle with reduced carbon footprint.
  • Adaptability: Can be easily integrated with various renewable energy systems.
  • Durability: Designed to withstand harsh environments, ideal for remote locations.

By choosing a 300 Amp Deep Cycle Battery, off-grid communities can enjoy a more reliable, sustainable, and cost-effective energy solution.

300 Amp Hour Deep Cycle Battery – Combining Capacity with Reliability

The 300 amp hour deep cycle battery from DCS Lithium Batteries is the epitome of combining high capacity with reliability. This battery is engineered to provide long-lasting power, making it an excellent choice for applications that require both high energy storage and endurance. Its deep cycle capabilities mean it can be discharged and recharged repeatedly without significant degradation, ensuring a long service life. This makes it particularly suitable for renewable energy systems, marine applications, and backup power systems where reliability is key.

In addition to its robust performance, the 300 Amp Hour Deep Cycle Battery is also user-friendly. It requires minimal maintenance, thanks to its advanced lithium-ion technology, and is easy to install and integrate into various systems. Its reliability, coupled with ease of use, makes it a top choice for those who need a dependable energy storage solution that delivers both in terms of capacity and longevity.

Why Should You Consider a 300 Amp Hour Deep Cycle Battery for Your Energy Project?

300 amp hour deep cycle batteryWhen planning an energy project, choosing the right battery is crucial, and the 300 amp hour deep cycle battery from DCS Lithium Batteries offers numerous advantages. Its high capacity ensures that it can store a significant amount of energy, making it ideal for projects that require a robust and reliable power source. This is particularly beneficial for large-scale renewable energy installations, backup power systems, and off-grid applications where consistent energy availability is key. The deep cycle nature of the battery means it can handle frequent and deep discharges without compromising its lifespan, ensuring long-term reliability and performance.

Additionally, the 300 amp hour battery’s compatibility with a variety of energy systems adds to its appeal. Whether it’s solar, wind, or hybrid systems, this battery integrates seamlessly, enhancing the overall efficiency of the energy project. Its advanced lithium-ion technology not only offers superior energy density but also ensures a lower environmental impact compared to traditional lead-acid batteries. This makes it a smart choice for projects focused on sustainability and eco-friendliness.

Unveiling the Potential of a 300ah Deep Cycle Battery in Diverse Applications

The 300ah deep cycle battery from DCS Lithium Batteries is a versatile powerhouse, suitable for a wide range of applications. Its high capacity and durability make it an excellent choice for sectors like renewable energy, marine, RVs, and emergency backup systems. In renewable energy setups, such as solar or wind farms, this battery plays a critical role in storing excess energy, ensuring a stable power supply even during periods of low energy generation. For marine applications, it provides reliable power for onboard systems, enhancing the safety and comfort of maritime journeys.

In the realm of recreational vehicles (RVs), the 300ah battery ensures that adventurers have a dependable source of power for their on-the-road needs. Its ability to withstand deep discharges and recharge efficiently makes it ideal for long trips. Similarly, for emergency backup systems, this battery offers peace of mind with its consistent and long-lasting power supply, ensuring critical systems remain operational during power outages. The 300ah Deep Cycle Battery’s adaptability across these diverse applications highlights its exceptional potential in modern energy solutions.

Can a 300ah Deep Cycle Battery Meet the Demands of Modern Energy Systems?

Modern energy systems are characterised by their need for reliability, efficiency, and sustainability, and the 300ah deep cycle battery from DCS Lithium Batteries is well-equipped to meet these demands. Its high capacity and efficient energy storage capabilities make it an ideal choice for contemporary energy systems, which often involve integrating renewable energy sources. The battery’s ability to provide a steady and reliable power supply is essential for systems that require consistent performance, such as smart grids and industrial power solutions.

Moreover, the environmental aspect of modern energy systems cannot be overlooked. The 300ah battery, with its eco-friendly lithium-ion technology, aligns perfectly with the shift towards greener energy solutions. Its long lifespan and recyclability contribute to reducing the environmental impact of energy storage. Additionally, its compatibility with advanced energy management systems allows for optimised performance, further enhancing its suitability for modern energy systems that prioritise efficiency and sustainability.

Exploring the Benefits of a 12v 300ah Lithium Ion Battery for Portable Power

12v 300ah lithium ion batteryThe 12v 300ah lithium ion battery from DCS Lithium Batteries is a game-changer in the realm of portable power solutions. Its compact size, combined with a high energy capacity, makes it an ideal choice for applications where portability and power are essential. This includes outdoor recreational activities, mobile workshops, and portable medical devices. The battery’s lightweight design makes it easy to transport, while its robust power output ensures that it can handle a variety of power-intensive applications.

Key benefits of the 12v 300ah lithium ion battery include;

  • Portability: Its compact and lightweight design makes it easy to carry and install.
  • High Energy Density: Offers more power in a smaller footprint, ideal for space-constrained applications.
  • Fast Charging: Capable of quick recharging, reducing downtime and enhancing productivity.
  • Long Lifespan: Durable and designed to withstand numerous charge cycles.
  • Low Maintenance: Requires minimal upkeep, adding to its convenience.
  • Versatility: Suitable for a wide range of portable applications, from camping to emergency power.

These attributes make the 12v 300ah battery a top choice for those in need of reliable and portable power solutions.

Why is the 12v 300ah Lithium Ion Battery a Game-Changer in Energy Storage?

The 12v 300ah lithium ion battery represents a significant advancement in energy storage technology. Its combination of high capacity, compact size, and lightweight design sets it apart in the market. This battery is particularly transformative for applications where space and weight are critical factors, such as in mobile homes, boats, and off-grid cabins. Its ability to store a large amount of energy in a small package allows users to maximise their power usage without the bulk and weight of traditional batteries.

Furthermore, the 12v 300ah battery’s lithium-ion technology offers several advantages over conventional lead-acid batteries. These include a longer lifespan, higher efficiency, and faster charging times. It also has a lower self-discharge rate, meaning it retains its charge for longer when not in use. These features not only enhance the user experience but also contribute to a more sustainable and cost-effective energy storage solution, making the 12v 300ah Lithium Ion Battery a true game-changer in the field.

Experience the DCS Difference with Our 300ah Lithium Ion Battery Solutions

DCS Lithium Batteries is committed to providing top-tier energy solutions, and our 300ah lithium ion battery range is a testament to this commitment. These batteries are designed with the user in mind, offering a blend of performance, reliability, and convenience. Customers who choose DCS experience the difference in several key areas:

  • Superior Performance: Our batteries are engineered for high efficiency and consistent power output.
  • Advanced Technology: Incorporating the latest advancements in lithium-ion technology for optimal results.
  • Customisable Solutions: We offer batteries that can be tailored to specific needs and applications.
  • Expert Support: Our team provides comprehensive support, from selection to installation and maintenance.
  • Quality Assurance: Each battery undergoes rigorous testing to ensure it meets our high standards.

By choosing DCS, you’re not just getting a battery; you’re investing in a reliable and efficient energy solution backed by expert knowledge and support.

How DCS’s 300ah Battery Innovations Are Shaping the Future of Energy Storage

DCS Lithium Batteries is at the forefront of energy storage innovation, and our 300ah battery range is a clear indicator of this leadership. These batteries are shaping the future of energy storage through several key innovations:

  • Enhanced Energy Density: Our batteries store more energy in a smaller footprint, which is crucial for both stationary and mobile applications.
  • Sustainable Solutions: We focus on eco-friendly technologies, reducing the environmental impact of energy storage.
  • Smart Integration: Our batteries are compatible with smart energy systems, allowing for more efficient energy management.
  • Versatility: Designed to meet the needs of various sectors, from residential to industrial.
  • Continuous Improvement: We are committed to ongoing research and development to stay ahead of industry trends.

These innovations not only position DCS as a leader in the energy storage market but also contribute to a more sustainable and efficient energy future.

DCS’s 300 Amp Deep Cycle Battery – A Testament to Advanced Energy Solutions

300 amp deep cycle batteryThe 300 amp deep cycle battery from DCS Lithium Batteries epitomises the advancement in energy solutions. This battery is not just a product; it’s a reflection of our commitment to innovation and quality. It offers unparalleled performance in energy storage, making it a preferred choice for a wide range of applications, from renewable energy systems to critical backup power sources. The battery’s robust design and advanced technology ensure it can meet the rigorous demands of modern energy needs.

In addition to its technical prowess, the 300 Amp Deep Cycle Battery is also a symbol of our dedication to customer satisfaction. We understand that each customer has unique energy needs, and our battery is designed to cater to these diverse requirements. Its versatility, coupled with our expert support, ensures that our customers receive not just a product but a comprehensive energy solution. The 300 Amp Deep Cycle Battery is more than just a battery; it’s a cornerstone of advanced energy solutions provided by DCS Lithium Batteries.

DCS’s Approach to 300ah Lithium Battery Technology

DCS Lithium Batteries adopts a unique and flexible approach to meeting the high-capacity needs of customers, especially when it comes to achieving the equivalent of a 300ah lithium battery. While we do not offer a single 300ah battery unit, our range of high-quality lithium batteries can be effectively used in parallel configurations to reach or surpass this capacity. This method offers several advantages and aligns with our commitment to providing versatile, scalable, and efficient energy solutions.

Our approach allows customers to tailor their energy storage systems to their specific needs. By connecting multiple batteries in parallel, users can create a custom system with a total capacity equivalent to 300ah or more. This flexibility is particularly beneficial for applications with varying power requirements or for those who may wish to expand their energy storage capacity over time. For instance, a user can start with a smaller setup and gradually add more units as their energy needs grow, making it a cost-effective and scalable solution.

Moreover, using multiple batteries in parallel enhances reliability and redundancy. In the unlikely event of a single battery encountering issues, the rest of the system continues to operate, ensuring an uninterrupted power supply. This is crucial for critical applications where consistent energy availability is paramount. Additionally, our batteries are designed with advanced lithium-ion technology, offering high efficiency, a long lifespan, and eco-friendly attributes. They are also equipped with safety features to ensure stable and secure operation when used in parallel configurations.

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DCS’s approach to achieving a 300ah capacity through parallel battery configurations offers a lot of benefits.

  • Customisability: Tailor your system to your specific capacity needs.
  • Scalability: Start small and expand your system as needed.
  • Reliability: Enhanced system reliability with multiple units.
  • Advanced Technology: Benefit from the efficiency and longevity of lithium-ion technology.
  • Eco-Friendly: Align with sustainable energy practices.
  • Safety and Security: Assured safety with built-in protective features.

LiFePO4 300ah Battery Bank Provide 300 Amperes for 1 Hour

The LiFePO4 300ah Battery Bank is capable of providing a consistent supply of 300 amperes for one hour, making it an exceptionally reliable power source for high-demand applications. This impressive capacity ensures that even the most power-intensive devices and systems can operate efficiently for a prolonged period. The 300ah rating signifies not just the battery’s energy storage capability but also its ability to deliver sustained performance, making it ideal for situations where uninterrupted power is essential.

LiFePO4 300ah Power Battery Comes with IP67 Protection

The LiFePO4 300ah Power Battery is designed with IP67 protection, offering a robust shield against dust and water. This high level of protection ensures that the battery remains safe and functional in various environmental conditions, from dusty industrial sites to damp outdoor locations. The IP67 rating guarantees that the internal components are secure from external elements, enhancing the battery’s durability and reliability.

300 Ah Lithium Battery Bank Include Two 150 Ah Lithium Batteries Connected in Parallel

A 300 Ah Lithium Battery Bank, including two 150 Ah Lithium Batteries connected in parallel, offers a versatile and scalable power solution. This configuration doubles the available capacity while maintaining the voltage at the same level, providing an effective way to increase energy storage without compromising on space. This setup is particularly beneficial for applications that require a significant amount of power over an extended period, offering flexibility and reliability in energy management.

300 Ah Lithium Battery – Guaranteed 2500 Lifecycles

The 300 Ah Lithium Battery is a long-term investment in reliable power, guaranteed to provide up to 2500 lifecycles. This assurance of longevity means that users can depend on the battery for years, making it a cost-effective choice over time. The extended lifecycle significantly reduces the need for frequent replacements, providing a sustainable energy solution for both commercial and personal use.

300 Amp Hour Lithium Ion Battery – No Memory Effect

The 300 Amp Hour Lithium Ion Battery is engineered to be free from the memory effect, a common issue in many rechargeable batteries. This means that the battery can be charged and discharged without losing its maximum energy capacity over time. Users can charge the battery at their convenience without worrying about diminishing its overall performance or lifespan, offering greater flexibility and efficiency in usage.

300 Amp Lithium Battery Has Passed Mill Vibration Test

The 300 Amp Lithium Battery has successfully passed the mill vibration test, demonstrating its durability and robustness in challenging environments. This test simulates the conditions the battery might encounter in heavy-duty applications, ensuring that it can withstand intense vibrations without compromising its performance or structural integrity. This makes it an ideal choice for applications in demanding conditions, such as in industrial machinery or transportation.

300ah Lithium Ion Battery is Ideal for Telecom Towers

The 300ah Lithium Ion Battery is an ideal power solution for telecom towers, offering reliability and efficiency in remote and demanding locations. Its high capacity ensures uninterrupted operation of communication equipment, a critical factor in maintaining consistent network services. The battery’s durability and low maintenance make it suitable for the challenging environments often associated with telecom infrastructure.

300ah Lithium is a Reliable Power Source for Critical Health Appliances

The 300ah Lithium battery is a reliable power source for critical health appliances, providing a steady and dependable energy supply. Its high capacity and stable output are essential for medical devices that require uninterrupted operation, ensuring that healthcare facilities can offer continuous care and monitoring. The reliability of the 300 amp hour Lithium battery is crucial in environments where power consistency can directly impact patient outcomes.

300ah Lithium Battery Price Seems to Be Higher than Lead-Acid, But Benefits are Worth to Invest

While the 300ah Lithium battery price seems to be higher initially compared to lead-acid batteries, the long-term benefits justify the investment. The lithium battery offers a longer lifespan, higher energy density, and lower maintenance costs. Over time, these factors result in a lower total cost of ownership, making the 300ah Lithium battery a cost-effective and efficient choice for a wide range of applications. Its superior performance and reliability make it a worthwhile investment for those seeking a high-quality power solution.

This strategy not only demonstrates our innovative approach to energy storage but also underscores our commitment to providing flexible and customer-centric solutions. By choosing DCS Lithium Batteries, you’re opting for a partner who understands and adapts to your unique energy needs. So place your order now!

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400ah lithium battery
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12v 80ah battery
12v 10ah battery
12v 75ah battery
12v 35ah deep cycle battery
DCS 24V 120AH
DCS 12V 110AH
DCS 12V 50AH
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DCS 12V 200AH SLIM LINE
DCS 12V 150AH
DCS 12V 150AH IP-67
Photovoltaic Battery
12 volt 24ah battery
12v 500ah lithium ion battery
12v 300ah lithium ion battery
12v 70ah battery
12v 120ah battery
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FAQ

FAQ

Cell Safety Info - Why LiFePO4 (LFP)?

Lithium Ferrophosphate (LFP) is a flame retardant, stable, safe and proven cell chemistry that has a very good energy density around 325 Wh/L. This cell chemistry can be engineered for various applications by adjusting the ratio of elements to provide high performance characteristics. E.g. the DCS marine battery range runs 2C cells, which means our little 75Ah battery will discharge comfortably at 75Ah x 2C = 150A. The DCS 80Ah Extreme runs 10C cells which means the 80A can comfortably discharge at 80Ah x 10C = 800A but is of course limited to lower currents due the the Battery Management System.

LFP also has very good cycling durability between 2,000 ~ 12,000 cycles can be achieved depending on how well the cells are managed, and the lowest rate of capacity loss (aka greater calendar-life) compared to other lithium cell chemistries.

Why You Cannot Use A Vsr Between Two Different Batteries Capacities & Chemistries?

Battery cells are simply a bunch of resistors with the ability to store energy. A 100Ah battery pack has a different resistance characteristic compared to a 50Ah battery pack, that theoretical difference in resistance is 2:1. So if you connect a 100Ah battery in parallel to a 50Ah battery there is no way for these two batteries to equalise and therefore you can’t charge them correctly. So for example connecting a 60Ah calcium starting battery to a 120Ah AGM via a VSR (Voltage Sensing Relay) you cannot charge both batteries correctly and from that day onwards you are prematurely destroying both battery packs. Same theory applies with lithium’s it’s still a battery pack.

What’s the solution? A DC-DC charger, you now have a permanent point of isolation (meaning that both batteries are never connected to each other in parallel). The DC-DC charger takes the surplus power from battery A (engine) and chargers battery B (aux/house). This device now allows any battery capacity and or chemistry to be used.

What If Both Batteries Are The Same, Can I Run A Vsr Between Exactly The Same Two Batteries?

Yes you can, but lithium’s have a different voltage curve, so you would still need to use a programmable VSR to dial them in correctly. You would also need to ensure the batteries are programmed to never exceed a 10%SOC variance, any larger and you risk damaging the BMS's. These devices also draw a lot of power when engaged to so it’s best to run the two batteries in permanent parallel and run a load disconnect instead of a VSR.

The Advantages Of The Lithium Battery Cell Chemistry

Lithium battery cells have a super low resistance so are very easy to charge and very efficient. This level of efficiency means you can charge them at very high C rates. For example if you look at the charge rate of a 100Ah AGM battery the recommended charging current will be around 25A, which is a 0.25C charge rate. If you consider the DCS 12V 100Ah Lithium battery it can be charged at up to 70A which is a 0.70C charge rate. This means you no longer need to consider DC-DC chargers as you can connect our batteries directly to high power charging devices such as suitable alternators, or large buck boosters. For example our popular dual 90Ah battery system for boats and 4WD vehicles, can be connected to alternators up to 160A.

Why Can DCS Batteries Be Connected In Parallel Without Any External Communication System?

Because our batteries are internally voltage regulated and because our BMS has such a high sustainable peak discharge current they will do an amazing job of equalising very quickly.

Configuring Battery Systems Correctly in Parallel

When expanding battery packs in parallel to achieve larger capacity battery banks, does not mean that the charging and discharging capabilities are simply added together. For Example;

Considering 2 x DCS 12V 75Ah batteries connected in parallel, to make a 12V 150Ah battery bank. These batteries have a recommended charging current of 50A. So that would be 50A + 50A = 100A with two batteries in parallel. However you always have to work on a 20% safety margin for parallel connections, especially as batteries age over time. So it would be 100A less 20% = 80A. So it would be safe to configure chargers to a maximum of 80A.

The same 75Ah batteries have a maximum continuous discharging power output of 150A. So it’s 150A + 150A = 300A less 20% = 240A. 240A x 12V = 2.9kW. So for example these two batteries would be suitable to support a 3000W inverter.

Considering 2 x DCS 12V 180Ah batteries connected in parallel. Maximum charging current is 60A + 60A = 120A less 20% = 96A. It would be safe to configure chargers at a maximum of 96A.

The same 180Ah batteries have a maximum continuous discharging power output of 180A. So it’s 180A + 180A = 360A less 20% = 288A. 288A x 12V = 3.5kW. So for example these two 180Ah batteries would be able to support a 3500W inverter.

The same formula applies for 3 or more batteries connected in parallel. In the case of our 180Ah batteries it would be 60A + 60A + 60A = 180A less 20% = 144A for maximum safe charging. 180A + 180A + 180A = 540A less 20% = 432A for maximum continuous discharge. 432A x 12V = 5.2kW. So these three batteries could support a 5000W inverter.

What Happens If I Fully Discharge My Battery To Empty?

The BMS will emergency open circuit the battery terminals to protect the cells. This means there is no longer any resistance in the system. The BMS needs a 12V supply with at least 1A of current to release and wakeup from a cell emergency protection state.

Most mains chargers with a lithium profile will do a slow recovery charge as will most solar regulators. Some chargers on the market today that are advertised as ‘lithium’ compatible still don’t have the firmware to do a slow recovery charge to release BMS’s. If you have a charger that will not wakeup the BMS, easiest way to wake it up is to connect a unregulated solar panel directly to the battery terminals, ensure all loads are disconnected before you do this. Having said that every system should have a suitable low cut off voltage to shutdown loads/accessories so that the batteries are not fully drained.

"Batteries cannot be left flat/empty, if the low voltage cutoff is triggered the battery pack should be fully charged as soon as possible. If access to a suitable charger is not possible, disconnect all loads from the battery terminals. The warranty will be void if the battery pack has been left in a low voltage cutoff state for longer than 14 days."

Most important thing is to isolate everything from the battery terminals, as cables/loads connected to the terminals causes more power drain as the FET gates have to remain closed to cull the accessory standby loads connected to the battery pack + offset BMS standby power consumption.

Battery Monitor Settings

Use the Following Settings:

Charged voltage 14.0V
Tail current 4%
Charged detection time 1min
Peukert 1.05
Charge efficiency 98%
Current threshold 0.1A
C rates: refer to the battery pack capacity

What Is The Best State/charge To Store These Batteries ?

Fully charge to 100% isolate everything from the terminals and leave for max 3 months and then cycle (fully discharge and fully charge) and leave again for 3 months etc…. Minimum 4 cycles per year to not effect the cells capacity.

What Soc Do Modern Smart Alternators Typically Charge Batteries To?

The reason many factory batteries fall over after 9/12 months is because modern/smart alternators typically drop the alternators voltage output to 13.5/13.6V. This voltage is not high enough to charge wet/calcium/lead acid batteries so from the getgo they are destined to fail prematurely. They are typically under charged to around ~80%SOC at these voltages.

So what happens when DCS Hybrid batteries are connected to smart alternators? Exactly the same thing they get charged to around the same 80%SOC. However because LFP has no memory effect that's perfectly fine. By only charging to 80% you are further improving the service life of our batteries. It's no not necessary to charge our batteries over 80%SOC. The only advantage is that you give the BMS a chance to detect full charge voltage and calibrate the SOC readout. So try to plug into mains once a week to fully charge your batteries, especially if your not running any fixed solar supply.

Recommended Charger Settings For Dcs 12v Batteries

Bulk: 14.4V
Float: 13.5V

SOC% Out - How to Reset?

When the battery pack is discharged down to 11.50V the BMS resets to 0%SOC and now is placed in a relearning state - the pack must be fully charged continuously without stopping to calibrate again. Charge it on a mains charger to 14.60V.

Depending on the usage pattern, best to fully cycle the batteries once every 3 months to give the cells a refresh. To fully cycle a 12V pack discharge to 11.50V and charge to 14.60V.

BMS & CMS

BMS & CMS

Designing lithium batteries is not only our bread and butter at DCS; we are so passionate about this safe, stable, robust, and high-performance cell chemistry that we decided to create our own line of Battery Management System (BMS) and Cell Management System (CMS) in 2015.

DCS BATTERY MANAGEMENT SYSTEM:

What was the goal? We started this project because all of the basic Chinese-designed BMSs are just protection boards, and it's difficult to call them a BMS when they don't do any cell balancing or provide any programmability for various parameters and cell control. Many of the Battery Management Systems we tested used poor PCB engineering design techniques and components. That meant that pushing above 100A was nearly impossible, and reliability was also questionable when using those Battery Management Systems.

In a nutshell, the design had to be tough and dependable for those who would use them in the field, with no room for error. Construction materials, coatings and surfaces, and assembly techniques are all important considerations when designing a reliable system. We assessed the expertise of all major leading manufacturers in Europe, Japan, the United States, and Korea after submitting our brief to them all. We ended up working with a leading and well-known Japanese semiconductor manufacturer.
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OUR PRIMARY BMS OBJECTIVE WAS TO CREATE A

HIGH PERFORMANCE 200A BMS THAT COULD DO

  • Continuous operation at 200A using high-quality components
  • To have a minimal temperature increase at peak output current (these circuit boards are installed inside battery packs, they limit internal heat build-up that is crucial for the long life of the battery cells).
  • Designed for engine cranking applications, as it must deliver a minimum of 1200LCAs for 10 seconds (due to the limited voltage drop with suitable lithium cells, it is very easy to crank over modern engines). Most engines start in less than a second, so 10 seconds is plenty. CCAs do not apply to lithium batteries because this standard was designed for lead-acid batteries and required 30 seconds of cranking amps. When a lithium battery is controlled by a BMS, the correct terminology is LCA, which stands for Lithium Cranking Amps and is based on delivering 10 seconds of cranking amps.
  • Suitable for use in high-temperature applications such as engine compartments. It will be stable up to 180° C.
  • Comes with Bluetooth and WiFi connectivity to create a comprehensive app platform
  • MIL vibration standards are met (to open up the development of batteries for any application).

THIS IS TYPICAL CHINESE 100A 4S BMS DESIGN

THE DCS 4S 200A BMS

After three years of development, we were pleased with the circuit board stress testing and released the first batch of our newly developed BMSs across our entire 4S (12V) and 16S (48V) battery range in early 2018. Simultaneously, we hired an app development team to begin work on the software integration for our first app platform. In OCT 2019, the first GEN1 BLE DCS BMSs with Bluetooth chips were released. Our GEN2 BMSs were released in mid-2020, along with a more stable app platform with a new design scheme, after much tweaking on the hardware and software fronts. Our most recent GEN3 BLE BMSs were released in JAN 2021. The DCS LFP App monitoring system's accuracy and stability are now very mature and refined. Some new features have been added, including the ability to create custom battery names. With our comprehensive BLE DCS LFP App platform, we can produce our DCS BMS technology in any continuous rating range from 10A to 200A.
best motorhome battery

DCS CELL MANAGEMENT SYSTEM

It made no sense to combine the cell balancing system with the BMS after developing such an industry-leading and dependable BMS. So, based on our extensive experience designing and maintaining lithium batteries, we created a stand-alone CMS to complement our BMS. CMS? What? OK, so in the lithium world, there are two 'theories' of cell balancing: passive and active. Passive balancing is a low-cost, ineffective method of cell management that can cause resistors to burn in an attempt to bleed cell strings. Active cell balancing, on the other hand, is a more complex and efficient balancing technique that redistributes charge between battery cells during charge and discharge cycles.

Two Major Drawbacks to Passive Balancing

  1. Heat: We don't want excessive heat to accumulate inside a battery pack. The less internal heat there is, the less impact the battery cells have over time. Resistors have a finite service life, and if they fail, the game is over because you have no cell management. However, they can fail in such a way that they continue to draw power and eventually destroy the cells.
  2. Active balancing is the only way to manage lithium cells accurately. There are numerous ways to design an integrated circuit (IC) that actively manages cell strings. Over the years, DCS has tested well over ten different methods of active balancing ICs and, in the end, decided to develop our own active management circuit boards with the best-combined techniques based on our stress testing. Max, our in-house PCB design engineer, created our circuit boards to meet the following criteria;
  • High current flow (our latest boards now achieve 3.7A dynamic movement per channel)
  • Thermal management ensures the boards' dependability in harsh environments.
  • To ensure long-term reliability, be able to withstand maximum current and thermal loads.
  • Fail-safe design ensures that if any component fails, the battery pack is not compromised (it does not consume power from the battery cells).

We design all our own PCB hardware and the circuit boards are tested to withstand a minimum of 10 years of severe abuse. This video is the MIL-STD 810G Method 514.6 which includes 4 procedures for different modes of vibration.

THE DCS 16 CHANNEL CMS

There are some other software features and parameters that we cannot reveal to the public on this page, as well as some very fancy hardware. However, our latest 04-channel and 16-channel CMS's can easily manage up to 1000Ah battery banks. So, for example, if you wanted to use our 16 channel CMS's, you could run a 51.2V 1000Ah single battery pack, which means 51.2kWh in size! The DCS 15kWh batteries are just shy of 300Ah in capacity, so you can imagine how closely these batteries are monitored by CMS, which is why we back them with a 10-year / 80% capacity warranty. The DCS 16 channel 59.2A active cell balancing system is so effective that it will change the battery storage market forever. With this system, the lithium market will continue to dominate for the foreseeable future. All DCS batteries now include both our BMS and CMS circuit boards.
How to Wire Batteries Correctly

How to Wire Batteries Correctly

HOW TO WIRE BATTERIES CORRECTLY

Click Here to Download the Victron Battery Wiring Guide

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