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HomeLiFePO4 Lithium Batteries DCS 12V 70AH (LITHIUM)
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DCS 12V 70AH (LITHIUM)

€ 799.00

The DCS 12v 70ah Battery is a robust and versatile energy solution for a range of applications. The LiFePO4 Lithium Deep Cycle 70ah Battery is known for its durability and high performance, making it an ideal choice for both recreational and professional use. It’s a reliable power source that combines capacity with efficiency.

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SKU: DCS-12V-70AH Category: LiFePO4 Lithium Batteries
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Description

Description

The DCS 75ah batteries come in a compact size, but they pack a big punch. With a 2C discharge rate, these small looking batteries can run a 1800W inverter!

  • Real-time cell balancing operation is displayed in the cell status.
  • The temperature of the BMS MOSFET ( great info when you’re winching or running a large inverting load or your trolling motor to know how hard you’re pushing the electronics).
  • SOC% prediction (using impedance tracking, the app learns the SOC after the first ten cycles)
  • The voltage of the battery pack and cycle count
  • Charge and discharge current are displayed on an amp metre
  • Up to 10m of connectivity distance
  • No longer are battery monitors or shunts required for boats, campers, or automobiles. All the information you require is there at your fingertips
  • On single batteries, the SOC estimate is correct. However, the SOC estimate loses accuracy as more batteries are stretched in parallel
  • This free application allows you to view the battery pack’s health as it ages
  • Helps installers and integrators rapidly identify any system problems

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

GET IT ON

Google Play

Available on the

App Store

”TEXT”

Enhance Your Energy Management with Our Versatile 12v 70ah Battery. Depend on Our LiFePO4 Lithium Deep Cycle 70ah Battery for High-Capacity Power.

Are you searching for a battery that can keep up with the demands of your lifestyle or business without the constant need for charging or replacement? Do you find yourself questioning the longevity and performance of your current 12v 70ah battery? We understand these challenges and are here to provide a solution that meets and exceeds your expectations.

At DCS, our focus is on delivering not just batteries but complete energy solutions tailored to your unique requirements. Our range of advanced lithium batteries is crafted to fulfil these needs. They are designed to provide reliable, high-quality power, ensuring that your energy needs are met consistently and efficiently.

12v 70ah battery

Understanding the Versatility of the 12v 70ah Battery in Modern Applications

The 12v 70ah battery from DCS stands out in the realm of modern energy solutions, offering unparalleled versatility. This battery is not just a power source; it’s a gateway to a range of applications, from powering small devices and gadgets to being an integral part of larger systems. Its compact size, coupled with its robust energy output, makes it an ideal choice for both portable and stationary applications. Whether it’s for recreational vehicles, marine applications, or backup power systems, the 12v 70ah battery adapts seamlessly, providing reliable and consistent energy.

In today’s fast-paced world, where efficiency and reliability are paramount, the 12v 70ah battery emerges as a key player. Its ability to deliver power in various settings – from outdoor adventures to critical backup systems – demonstrates its adaptability. This battery is not just about providing energy; it’s about enhancing the way we use and interact with our devices and systems, making it a cornerstone of modern power management solutions.

Why Choose DCS’s Lithium 12v 70ah Battery Over Traditional Options?

Choosing DCS’s lithium 12v 70ah battery over traditional options is a decision that brings multiple benefits. Firstly, the lithium technology employed in these batteries offers a higher energy density, meaning more power is packed into a lighter and more compact unit. This translates to easier handling and installation, especially in space-constrained environments. Additionally, DCS’s lithium batteries boast a significantly longer lifespan compared to traditional lead-acid or AGM batteries, ensuring a more cost-effective solution over time.

Moreover, the environmental aspect cannot be overlooked. DCS’s lithium batteries are more eco-friendly, with a lower carbon footprint and recyclability options. They also require less maintenance, making them a hassle-free choice for users. With a commitment to quality and innovation, DCS ensures that each 12v 70ah lithium battery not only meets but exceeds customer expectations, providing a reliable, efficient, and sustainable power solution.

How Does a 12v 70ah Battery Enhance Your Energy Solutions?

A 12v 70ah battery is a game-changer in enhancing energy solutions, offering a blend of power, reliability, and versatility. Its substantial capacity makes it suitable for a wide range of applications, from powering small devices to being an integral part of larger energy systems. The battery’s ability to deliver consistent and reliable power ensures that your devices and systems operate at their peak performance without the worry of frequent power interruptions.

The integration of a 12v 70ah battery into your energy system also means an upgrade in efficiency. With its quick charging capabilities and deep discharge recovery, it ensures that energy is available when you need it the most. Whether it’s for daily use or as a backup during power outages, this battery stands as a robust pillar in your energy infrastructure, enhancing the overall efficiency and reliability of your power management.

70ah battery70ah

70ah Battery – Features and Benefits

70ah battery is a cornerstone in the world of portable and stationary power solutions, offering a balance of capacity, durability, and versatility. These batteries are designed to meet the demands of various applications, providing a reliable power source for everything from leisure activities to critical backup systems. The key features of 70ah batteries include their substantial energy storage capacity, ability to withstand numerous charge and discharge cycles, and adaptability to a range of environmental conditions.

The benefits of opting for a 70ah battery are manifold. Users enjoy extended run times for their devices and systems, ensuring that activities or operations are not interrupted by power shortages. Additionally, the robust build of these batteries means they can endure the rigours of both everyday use and extreme conditions, making them a reliable choice in any scenario. Whether it’s for recreational, commercial, or emergency use, a 70ah battery stands as a testament to power and endurance.

Maximising Performance – The Advantages of DCS’s Lithium 70ah Battery

DCS’s lithium 70ah battery is engineered to maximise performance, setting a new standard in the battery industry. These batteries are characterised by their high energy density, which allows for a lighter and more compact design without compromising on power. This makes them an ideal choice for applications where space and weight are critical factors. Additionally, the lithium technology ensures a longer lifespan, significantly reducing the need for frequent replacements and thus offering a more cost-effective solution in the long run.

The performance of DCS’s 70ah lithium batteries is further enhanced by their low self-discharge rate, ensuring that the stored energy is retained for longer periods. This feature, combined with their ability to withstand extreme temperatures and harsh conditions, makes them a reliable power source in any environment. Whether it’s for daily use or in critical applications, these batteries deliver consistent and dependable power, ensuring that your systems run smoothly and efficiently.

What Are the Key Considerations When Choosing a 70ah Battery?

When selecting a 70ah battery, several key considerations come into play to ensure you choose the right one for your needs. First and foremost is the application: understanding the specific requirements of your device or system is crucial. This includes considering the power demands, the operational environment, and the physical space available for the battery. Another important factor is the battery’s chemistry; different types, such as lithium-ion or AGM, offer varying characteristics in terms of energy density, lifespan, and maintenance needs.

Additionally, it’s essential to consider the quality and reliability of the battery. This includes looking at the brand reputation, warranty offerings, and customer reviews. A battery with a longer lifespan and higher reliability not only provides peace of mind but also proves to be more cost-effective in the long run. Lastly, environmental impact and safety features should not be overlooked. Opting for a battery that is eco-friendly and equipped with safety mechanisms ensures a responsible and secure choice for your power needs.

70ah agmagm 70ah

Exploring the Basics of 70ah AGM Batteries

70ah AGM (Absorbent Glass Mat) batteries represent a significant segment in the battery market, known for their reliability and maintenance-free design. These batteries use a glass mat separator to hold the electrolyte in place, which allows for a spill-proof and stable power source. AGM batteries are particularly favoured in applications where leak-proof and robust power is essential, such as in marine, RV, and off-grid systems. Their ability to withstand vibrations and rough handling makes them a preferred choice in mobile applications.

However, it’s important to note that while AGM batteries offer certain advantages, they also come with limitations. Compared to modern lithium batteries, AGM batteries are heavier and have a lower energy density, which can be a drawback in applications where space and weight are critical. Additionally, their lifespan and efficiency can be lower than that of lithium batteries, making them less cost-effective over time. Understanding these aspects is crucial when considering a 70ah AGM battery for your power needs.

Comparing 70ah AGM and Lithium Batteries – Why Lithium Comes Out on Top?

In the comparison between 70ah AGM and lithium batteries, lithium technology often comes out on top due to several key advantages. Firstly, lithium batteries offer a higher energy density, meaning they can store more energy in a smaller and lighter package. This is particularly beneficial in applications where space and weight are at a premium. Additionally, lithium batteries have a longer lifespan, capable of more charge and discharge cycles without significant degradation, making them a more sustainable and cost-effective choice in the long run.

Another significant advantage of lithium batteries is their efficiency. They have a higher discharge and charge efficiency, which means more of the stored energy is usable. Moreover, lithium batteries have a lower self-discharge rate, ensuring that the energy is retained for longer periods when not in use. These factors, combined with the environmental benefits of lithium technology, make it a superior choice over AGM batteries for most applications.

Is a 70ah AGM Battery Right for Your Energy Needs?

When considering a 70ah AGM battery for your energy needs, it’s important to weigh its characteristics against your specific requirements. AGM batteries are known for their durability and maintenance-free operation, making them suitable for applications where regular battery maintenance is not feasible. They are also capable of handling deep discharge cycles, which can be beneficial in systems where the battery is frequently drained.

However, it’s crucial to consider the limitations of AGM technology. These batteries are generally heavier and have a lower energy density compared to lithium batteries. This can be a significant factor in portable or space-constrained applications. Additionally, while AGM batteries are reliable, they may not offer the same long-term cost-effectiveness as lithium batteries, which have a longer lifespan and higher efficiency. Assessing these factors will help determine if a 70ah AGM battery aligns with your energy goals.

AGM 70ah Batteries – Traditional Technology in the Modern World

AGM 70ah batteries represent a traditional approach in the battery world, offering a reliable and proven solution for various applications. These batteries are known for their robust construction and ability to handle deep discharge cycles, making them suitable for applications like backup power systems and off-grid energy storage. The AGM technology, with its spill-proof design and resistance to vibrations, has been a dependable choice for many users over the years.

However, in the context of the modern world, where efficiency, weight, and environmental impact are increasingly important, AGM batteries face challenges. They are heavier and have a lower energy density compared to contemporary lithium batteries. This can limit their suitability in applications where space and weight are critical. Additionally, the shift towards more sustainable and efficient energy solutions is leading users to consider alternatives like lithium batteries, which offer several advantages over traditional AGM technology.

The Shift from AGM 70ah to Advanced Lithium Batteries

The shift from AGM 70ah batteries to advanced lithium batteries is driven by the numerous benefits that lithium technology offers. Lithium batteries are significantly lighter and more compact than AGM batteries, providing a more efficient use of space and easier handling. This is particularly advantageous in portable applications and in scenarios where weight is a critical factor. Additionally, lithium batteries offer a longer lifespan, reducing the need for frequent replacements and offering better long-term value.

The environmental aspect is another key factor in this shift. Lithium batteries are more eco-friendly, with a lower carbon footprint and better recyclability options. They also exhibit higher energy efficiency, with better charge and discharge rates, making them more suitable for modern energy demands. This transition to lithium technology represents a move towards more sustainable, efficient, and cost-effective energy solutions, aligning with the evolving needs of consumers and industries alike.

How Do AGM 70ah Batteries Perform in Today’s High-Demand Energy Systems?

AGM 70ah batteries have historically been a staple in energy systems, known for their durability and maintenance-free operation. In today’s high-demand energy environments, they continue to offer reliable performance, especially in situations where regular battery maintenance is challenging. AGM batteries are adept at handling deep discharge cycles, making them suitable for backup power systems and off-grid applications. Their spill-proof design and resistance to vibration and shock also make them a safe and stable choice in various settings.

However, as energy demands evolve, the limitations of AGM batteries become more apparent. They are heavier and have a lower energy density compared to modern lithium batteries, which can be a drawback in applications where efficiency and space optimisation are crucial. While AGM batteries still hold their ground in certain applications, the trend is shifting towards more advanced solutions like lithium batteries, which offer higher efficiency, longer life spans, and better adaptability to today’s dynamic energy needs.

The Evolution of 70ah Batteries – From Past to Present

The journey of 70ah batteries from their inception to the present day is a testament to the rapid advancements in battery technology. Initially, lead-acid and AGM batteries dominated the market, offering a reliable source of power for a variety of applications. These batteries were prized for their robustness and ability to deliver stable power, albeit with limitations in terms of weight and energy density. Over the years, the demand for more efficient, lighter, and environmentally friendly batteries led to significant innovations.

The advent of lithium technology marked a turning point in the evolution of 70ah batteries. Lithium batteries brought a paradigm shift with their high energy density, lighter weight, and longer life cycles. They catered to the growing need for more efficient energy storage solutions in a world increasingly reliant on portable and high-demand applications. Today, lithium 70ah batteries represent the forefront of battery technology, meeting the diverse needs of modern consumers and industries with greater efficiency and environmental sustainability.

DCS’s Approach – Elevating the 70ah Battery Experience with Lithium Technology

DCS’s approach to the 70ah battery market is characterised by a commitment to innovation and quality. Recognising the limitations of traditional AGM batteries, DCS has embraced lithium technology to elevate the 70ah battery experience. DCS’s lithium batteries are designed to offer superior performance, with a focus on higher energy density, longer life cycles, and environmental sustainability. These batteries are significantly lighter and more compact, making them ideal for a wide range of applications where space and weight are critical considerations.

DCS’s lithium 70ah batteries also stand out for their advanced safety features and reliability. They are engineered to provide stable and consistent power, even under challenging conditions, ensuring that users have access to dependable energy when they need it most. By focusing on customer needs and embracing cutting-edge technology, DCS is not just selling batteries; they are providing a comprehensive power solution that enhances the way people use energy in their daily lives.

Why is the 70ah Battery Considered Essential for Reliable Power Storage?

The 70ah battery has become an essential component in the realm of reliable power storage due to its optimal balance of capacity, size, and versatility. This battery size is particularly well-suited for a wide range of applications, from recreational vehicles and marine use to solar energy systems and backup power solutions. Its capacity ensures that it can store enough energy to meet the demands of these applications, providing a reliable source of power when it is most needed.

Moreover, the 70ah battery size is ideal for scenarios where space and weight are considerations. It offers a substantial energy reserve without the bulk and weight of larger batteries, making it a practical choice for mobile and space-constrained applications. Whether it’s for daily use or as an emergency power source, the 70ah battery stands as a cornerstone in reliable power storage, offering a blend of performance, convenience, and dependability that is hard to match.

Discover the Benefits of Upgrading to DCS’s 75ah Batteries at No Extra Cost

Choosing DCS’s 75ah batteries over the standard 70ah options offers a range of benefits, especially considering there’s no additional cost involved. Here’s why opting for the 75ah batteries is a smart decision;

Increased Energy Capacity

  • Gain an extra 5ah, providing more energy storage.
  • Enjoy extended run times and fewer charging cycles.

Enhanced Performance

  • Experience improved efficiency in energy usage.
  • Benefit from the latest advancements in lithium battery technology.

Longer Lifespan

  • DCS’s 75ah batteries are designed to last longer.
  • Reduce the need for frequent replacements, saving money in the long run.

Cost-Effective Upgrade

  • Get more power at the same price as a standard 70ah battery.
  • A smart investment for enhanced energy solutions without extra cost.

Eco-Friendly Choice

  • Lithium batteries are more environmentally friendly.
  • Contribute to a lower carbon footprint with sustainable energy storage.

Versatile Applications

  • Ideal for a variety of uses, from off-grid systems to recreational vehicles.
  • Ensure reliable power in critical situations with the added capacity.

By upgrading to DCS’s 75ah batteries, customers are not just getting an incremental increase in power; they are investing in a more efficient, durable, and sustainable energy solution. This upgrade represents a commitment to quality and value, ensuring that customers receive the best in modern battery technology at no additional cost.

Top 3 Features of LiFePO4 70Ah Power Battery

The LiFePO4 70Ah Power Battery boasts three standout features: exceptional cycle life, enhanced safety, and high energy density. Firstly, its cycle life surpasses traditional batteries, offering longevity and reliability for prolonged use. Secondly, the LiFePO4 chemistry ensures enhanced safety with a lower risk of overheating or thermal runaway. Lastly, its high energy density means more power is packed into a lighter, more compact unit, making it ideal for a range of applications where space and weight are considerations.

DCS 70Ah Lithium Battery for Electric Motor Bike

The DCS 70Ah Lithium Battery is a perfect match for electric motorbikes, providing high-performance power in a compact form. This battery offers a balance between weight and power, enhancing the overall efficiency and maneuverability of electric motorbikes. With the DCS 70Ah battery, riders can enjoy longer rides and quicker acceleration, all while benefiting from the battery’s long lifespan and consistent power output.

70Ah Lithium Battery for Engine Starting

The 70Ah Lithium Battery is ideal for engine starting, providing high bursts of power necessary for ignition. Its quick discharge rate and reliable performance make it a superior choice for starting engines in cars, motorcycles, and other vehicles. The 70Ah lithium ion battery’s efficiency in delivering power quickly and safely enhances its suitability for this critical application, ensuring that vehicles start promptly every time.

Lithium 70Ah Deep Cycle Battery for Solar Panel

The Lithium 70Ah Deep Cycle Battery is an excellent energy storage solution for solar panels. It effectively stores and releases energy, making it perfect for solar systems that require dependable and consistent power. The battery’s deep cycle capabilities ensure it can handle frequent and prolonged discharges, which is essential in solar applications where energy demand can fluctuate based on weather and usage patterns.

Lithium Ion 70Ah Deep Cycle Battery for Marine Applications

Designed for the rigours of marine environments, the Lithium Ion 70Ah Deep Cycle Battery is a reliable power source for boats and other marine applications. Its ability to withstand deep discharges and its resistance to harsh conditions make it ideal for powering marine electronics, trolling motors, and other equipment. The 70Ah battery’s compact size and lightweight design are advantageous on watercraft where space is limited and weight is a critical factor.

Order Your Batteries Today!

In the world of energy storage, making the most out of your investment is key. That’s why at DCS, we’re offering an exceptional opportunity: upgrade to our superior 75ah batteries at the same price as the 12v 70ah battery. This upgrade isn’t just about additional capacity; it’s about enhancing your energy efficiency and reliability without any extra financial burden.

By choosing our 75ah batteries, you’re not only getting more power to meet your needs but also investing in a solution that brings longevity and performance, ensuring that your energy needs are consistently met with the highest standards. Make the smart choice today and experience the difference in power and performance with DCS’s 75ah batteries.

PRODUCT RANGE
DEEP CYCLE BATTERIES
DUAL BATTERY SYSTEMS
MARINE BATTERIES
CARAVAN & MOTORHOME
LITHIUM BATTERIES
LITHIUM GOLF CART BATTERIES
Lithium Car Battery
lithium trolling motor battery
AGM LEAD ACID BATTERY
LITHIUM STARTER BATTERY
OFF GRID BATTERIES
12V BATTERY PACKS
SOLAR BATTERIES
BOAT BATTERIES
12V LAWN MOWER BATTERY
LITHIUM MOTORCYCLE BATTERY
lithium polymer battery
12 volt power supply
24v battery pack
OTHER PRODUCTS
DCS 12V 180AH
DCS 24V 10AH
DCS 12V 150AH
DCS 12V 100AH
DCS 12V 80AH EXTREME
DCS 12V 140AH
DCS 12V 120AH SUPER SLIM LINE
400ah lithium battery
12v 50ah battery
solar battery 12v 250ah
12v 20ah battery
12v 80ah battery
12v 10ah battery
12v 75ah battery
12v 35ah deep cycle battery
DCS 24V 120AH
DCS 12V 110AH
DCS 12V 50AH
DCS 12V 75AH
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
130ah agm battery
105ah agm battery
60ah lithium battery
12v 90ah 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

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