12.8V LiFePO4 Battery
  • 12.8V LiFePO4 Battery12.8V LiFePO4 Battery
  • 12.8V LiFePO4 Battery12.8V LiFePO4 Battery
  • 12.8V LiFePO4 Battery12.8V LiFePO4 Battery
  • 12.8V LiFePO4 Battery12.8V LiFePO4 Battery
  • 12.8V LiFePO4 Battery12.8V LiFePO4 Battery
  • 12.8V LiFePO4 Battery12.8V LiFePO4 Battery
  • 12.8V LiFePO4 Battery12.8V LiFePO4 Battery
  • 12.8V LiFePO4 Battery12.8V LiFePO4 Battery
  • 12.8V LiFePO4 Battery12.8V LiFePO4 Battery
  • 12.8V LiFePO4 Battery12.8V LiFePO4 Battery

12.8V LiFePO4 Battery

The CPSY® 12.8V LiFePO4 battery with built-in BMS is designed as a deep cycle discharge battery pack, providing solutions for demanding applications requiring lighter, longer life and higher capacity batteries, and features advanced battery management system (BMS) and Bluetooth smart monitoring. 4P4S connection is available to expand capacity and voltage. Widely used in communication power systems, UPS systems, off-grid or micro-grid systems, security and protection systems, emergency lighting power supplies, portable medical equipment, golf carts, RVs, solar/wind energy systems, remote monitoring, etc. and how to quickly charge large capacities or high voltage power equipment.

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Product Description

The CPSY® 12.8V lithium iron phosphate module battery pack adopts a lead-acid battery interchangeable design. Compared with 12V lead-acid batteries, it has the characteristics of small size, light weight, easy to carry, and safer to use. The volume of a lithium iron phosphate battery with the same specification and capacity is lead The volume of acid battery is 2/3, and the weight is 1/3 of lead-acid battery. 12.8V LiFePO4 battery has the characteristics of high output power and high utilization rate. With the same volume and weight, the power of LiFePO4 lithium battery is the same as that of lead-acid battery 2 times.

Some parameters of CPSY®12.8v LiFePO4 battery

Chemical substance: Ferrophosphate (LiFePO4)

Rated voltage: 12.8V

Rated capacity: 7Ah-200Ah

Charging mode: constant current and constant voltage

Charging and discharging port: Same terminal for charging and discharging, positive/negative pole. (M8 screw hole)

Standard charging current (A): 7A-50A, up to 5C high-speed charging and discharging

Maximum charging current (A): 23A-100A (Max), can continuously charge high-power devices

Discharge current: 23A-100A (continuous): 30A-300A (maximum 30S)

Charging temperature (℃): 0℃~45℃

Discharge temperature (℃): -20℃~60℃

Storage temperature (℃): -20℃~45℃

Battery temperature protection (℃): 60℃±5℃

Battery life: 3000+ cycle life @80% DOD, 2000 cycle life @100% DOD, 7000 cycle life @50% DOD, 10 years design life

Battery warranty: 3 years

Battery shell material: cold rolled sheet metal or ABS plastic, black

Lithium battery protection: short circuit protection, overcharge protection, over-discharge protection, over-current protection, temperature protection. Balance.

Application areas: home energy storage, energy storage power stations, low-speed electric vehicles, RVs, special vehicles, testing equipment, security monitoring equipment, survey instruments, medical equipment, etc.; special performance testing equipment

Features: Supports multiple series and multiple parallels, long cycle life, light weight battery, high safety performance, green and environmentally friendly

CPSY® 12.8V LiFePO4 Battery Parameter (Specification)

S/N Model No. Voltage(V) Capacity(AH) Maximum continuous discharge current Dimensions         (L*W*H mm) Weight(Kgs)
1 GWLi1206 12.8V 6Ah 6A 151*65*94 0.9
2 GWLi1208 12.8V 8Ah 8A 151*65*94 1.09
3 GWLi1212 12.8V 12Ah 12A 180.5*76*165 1.4
4 GWLi1216 12.8V 16AH 16A 180.5*76*165 2
5 GWLi1220-A 12.8V 20Ah 20A 165*125.5*175 2.7
6 GWLi1220-B 12.8V 20Ah 20A 181.2*77.8*177.8 2.5
7 GWLi1224 12.8V 24Ah 24A 165*125.5*175 3.1
8 GWLi1228 12.8V 28Ah 28A 165*125.5*175 3.4
9 GWLi1232 12.8V 32Ah 32A 165*125.5*175 3.8
10 GWLi1240 12.8V 40Ah 40A 194*132*170 4.7
11 GWLi1236 12.8V 36Ah 36A 194*132*170 4.3
12 GWLi1252 12.8V 52Ah 50A 229*138*210 5.8
13 GWLi1280 12.8V 80Ah 50A 260*168*209 8.9
14 GWLi12100 12.8V 100Ah 100A 329*172*214 11.5
15 GWLi12120 12.8V 120Ah 60A 329*172*214 13.5
16 GWLi12150 12.8V 150Ah 100A 483*170*240 15
17 GWLi12200 12.8V 200Ah 100A 522*240*218 23.5
18 GWLi12200 Plus 12.8V 200Ah 200A 522*240*218 23.7
19 GWLi12300 12.8V 300Ah 200A 522*240*218 31
20 GWLi12400 12.8V 400Ah 200A 520*269*220 41
21 GWLi2450 25.6V 50AH 50A 329*172*214 11.6
22 GWLi24100 25.6V 100AH 100A 483*170*240 21.5

CPSY®12.8V LiFePO4 Battery Feature And Application

The CPSY®12.8V LiFePO4 battery has an expected life of 3000+ cycle life when deep cycle @80% DOD, features 100A continuous current, 200A surge current (30 seconds) and ½ second surge (for higher loads), easily connected in series to create 24V , 36V or 48V system.


1. Long service life: Under the same conditions, 12.8V LiFePO4 battery can be used for more than 10 years (3000 cycle life @80% DOD), while lead-acid batteries can only be used for more than 3-5 years (800 cycle life) @80%DOD).

2. Built-in BMS function: It has the characteristics of high current and rapid charge and discharge, monitors battery charge and discharge and temperature changes, and maximizes battery cycle life.

2. Safe to use: After strict safety testing, it will not explode even in a traffic accident.

3. Fast charging: Using a special charger, the battery can be fully charged in 40 minutes at 1.5C.

4. High temperature resistance: hot air value can reach 350 to 500℃.

5. Lighter weight: small size and light weight, about 40% to 50% lighter than lead-acid batteries of the same capacity, making it easy to carry.

6. Green and environmentally friendly: non-toxic (does not contain toxic heavy metals such as cobalt or nickel), no pollution, wide sources of raw materials, and cheap prices

7. High durability: The shell is made of IPX-6 waterproof ABS flame retardant material, silver-plated copper terminals, good conductivity, stable performance, and wide application range

8. Use A-grade LiFePO4 battery cells to ensure excellent battery performance. The nominal voltage is 3.2V. The maximum charging voltage of a single cell is less than 3.9V, and the minimum discharge voltage is greater than 2.0V.

9. It has the characteristics of high output power and high usage rate. Its internal battery structure is 4 in series and 8 in parallel.

10. Low self-discharge: The self-discharge rate is low <2%, which can maintain power for a longer time when not in use.

11. High cost performance: The initial cost is high in the early stage (due to the cost of raw materials and manufacturing processes), but the life span is long. When spread out, the daily cost is 1/2 lower than that of lead-acid batteries, and the cost performance is high.


Large electric vehicles: buses, electric vehicles, tourist buses, hybrid vehicles, etc.;

Light electric vehicles: electric bicycles, golf carts, RVs, recreational vehicles (RV), small flat battery vehicles, forklifts, cleaning vehicles, electric wheelchairs, etc.;

Power tools: electric drill, electric saw, lawn mower, etc.;

Submarines, marine machines, remote control cars, boats, airplanes and other toys;

Solar street lights, energy storage equipment for solar and wind power generation;

UPS backup power system and emergency lights, warning lights and miner's lamps (the best safety);

Small medical equipment and portable instruments, etc.

CPSY® 12.8V LiFePO4 Battery Details

When compare with peers, CPSY® 12.8V LiFePO4 Battery advantages as below:

●Maintenance-free, small size, high-rate lithium battery, which can provide strong starting current in a short time.

●The built-in integrated hardware intelligent BMS system can accurately control high-power discharge and protect the battery, extend its life, will not explode or catch fire, and is completely environmentally friendly and safe.

●12.8V lithium iron phosphate battery, ABS shell, can perfectly replace valve-regulated sealed lead-acid batteries

●The 48V/51.2V lithium battery is designed with a shock-proof structure filled inside the cold-rolled sheet metal shell to achieve high safety, high reliability, shockproof and waterproof requirements;

●Stabilized voltage output: Through the DC-DC circuit, it outputs a stabilized 12V voltage to ensure the power needs of precision equipment.

●Reliable connection: using aviation connector, fast, safe and reliable;

●AC charging: built-in AC-DC module, 220V AC is converted into DC to charge the battery.

●The battery pack is safe, equipped with a temperature probe, and automatically starts protection when the temperature exceeds;

●The battery pack has high cycle life and is in line with the value concepts of low carbon, energy saving and environmental protection;

●UN38.3 and CE certification system

●Super lifespan: cycle life exceeds 3,000 times at 80% DOD

●Easy to install in series and parallel, supports 4 units in series or 10 units in parallel, its internal battery structure is 4 in series and 8 in parallel

●Safe and non-explosive, wide applicable temperature range, working temperature from -20℃~+60℃.

●Output terminal, easy to transport, with protective measures, adopts the output terminal of lead-acid battery, easy to replace.

●Low self-discharge, easy to adjust capacity, superior fast charging performance, higher safety

●Can be used externally in series and parallel, maximum 4 series and 8 parallel, maximum 48V battery use

●Using ABS hard plastic shell, it is flame retardant, waterproof and explosion-proof, and IP65 waterproof to ensure better durability

●Rectangular lithium iron phosphate battery cell with high consistency, long cycle life and higher safety

●Small size and lighter: With the same capacity, it can replace heavy lead-acid (AGM/GEL) batteries, and the weight is 1/3 of lead-acid (AGM/GEL) batteries.

●Maintenance-free, fully sealed, waterproof, high power performance and good cycle performance;

●Independent overcharge, over-discharge, over-voltage, low-voltage, over-temperature and short-circuit protection functions

●Using brand new A+ grade batteries, premium "CALB quality"; Factory testing and data reports based on QR code and serial number can be provided upon request.

●Optional functions: Support Bluetooth (mobile APP), RS-485 communication, support multi-serial and multi-parallel (maximum support of 8 serial N parallel)

●High safety standards: The safety unit with integrated monitoring system provides a safer guarantee in use.

Precautions for 12.8V LiFePO4 Battery sleep activation

1) When activating a dormant battery, avoid using non-original chargers to avoid battery damage.

2) When activating the battery, do not rush to turn it on. You should charge it for a period of time to ensure that the battery voltage returns to normal.

3) If the battery appears abnormal during the activation process, such as heating, smoking, etc., stop charging immediately and send it to a professional maintenance point for inspection.

4) When activating the battery, you should follow the battery instruction manual to ensure battery safety.

5) Lithium batteries that have not been used for a long time should be charged regularly to extend battery life.

The above is an introduction to how to activate lithium battery hibernation. Battery hibernation is a self-protection mechanism. When the battery voltage is lower than a certain threshold, the battery will enter the hibernation state. Activating dormant lithium batteries requires appropriate methods, such as using the original charger, a charger with a slightly higher voltage than normal, direct power charging, etc. During the activation process, attention should be paid to the choice of charger, charging time, and battery safety. If the battery cannot be activated, it is recommended to send it to a professional repair center for inspection and repair. In addition, regular charging and discharging of lithium batteries can extend the service life of the battery.


1.What is the difference between 12.8V LiFePO4 battery and 12V lead-acid battery? Answer see below:

Item 12.8V LiFePO4 battery 12V lead-acid battery
Volume smaller bigger
Service life 5-10 years, 2000-5000 cycle life, 3-5 years, 800-1200 cycle life
Operating temperature -20℃~70℃ -15℃~50℃
Safety performance high middle
Charging efficiency High, it takes 1 to 2 hours to fully charge Low, it takes 8 to 10 hours to fully charge
Green Non-toxic and pollution-free Lead pollutes the environment and harms the human body
No memory effect no memory effect There is a memory effect
Use and maintenance No need for regular maintenance Frequent daily maintenance will increase maintenance costs
Energy density ratio The energy density of lithium iron phosphate batteries is 3 to 4 times that of lead-acid batteries, 2.5 times that of nickel-cadmium batteries, and 1.8 times that of nickel-metal hydride batteries.

2. Reasons for 12.8V LiFePO4 Battery dormancy

1) Over-discharge: When the voltage of the lithium battery is lower than the minimum threshold voltage set by the protection board, the battery will automatically cut off the power output and enter a sleep state.

2) If the lithium battery is not used for a long time, the battery voltage will gradually decrease due to self-discharge. When the voltage is lower than the minimum threshold voltage set by the protection board, the battery will enter a dormant state.

3) Abnormal charging: During the charging process, if the battery has abnormalities, such as overcharge, over-discharge, over-current, etc., it may cause the battery to enter a dormant state.

3. How to activate 12.8V LiFePO4 Battery hibernation

1) Use the original charger to charge: For damaged lithium batteries, first try to use the original charger to charge. Since the voltage cannot be detected when the battery is in hibernation, it needs to be charged for a period of time to see if the battery regains activity.

2) Use a charger with a voltage slightly higher than the normal voltage: If the battery cannot be activated using the original charger, you can try using a charger with a voltage slightly higher than the normal mobile phone charging voltage for strong activation.

3) Use direct power supply for charging: When the phone is out of power and cannot be turned on, you can try to use direct power supply for charging instead of using a computer socket or mobile power supply. This method may charge slower, but can sometimes successfully activate a dormant battery

4) Low-voltage charger charging: Use a low-voltage charger to charge the battery, or you can also try to activate the battery. This method may require charging for 30 minutes to see if the battery comes back to life

5) Parallel charging: If the battery cannot be charged, you can try to find a set of electric vehicle lithium batteries of the same model as the original battery, and connect them in parallel with this set of unchargeable batteries, so that the good batteries can discharge to the unchargeable batteries. After several cycles of parallel charging, there is a certain chance that the battery can be reactivated.

6) Fast charging: For batteries with serious power loss, you can try to use a fast charger to charge. Fast chargers can provide larger currents to help activate the battery

7) Professional maintenance: If none of the above methods can activate the battery, it is recommended to send the battery to a professional maintenance point for inspection and repair.

4. The following is a comparison table between lithium iron phosphate batteries and lithium-ion batteries:

Item Lithium iron phosphate battery (LiFePO4) Lithium-ion battery (Li-ion)
Chemical synthetic materials Using lithium iron phosphate (LiFePO4) as the cathode material Utilize various lithium metal oxides in non-universal lithium-ion batteries, such as lithium cobalt oxide (LiCoO2) or lithium manganate (LiMn2O4) as cathode materials
Dimensions and weight Due to lower energy density, it can be larger and heavier for a given energy capacity They are compact and lightweight for use in portable electronics and mobile devices
Cycle life Longer cycle life, typically exceeding 2000-3000 cycles, with minimal capacity loss Good cycle life, typically 300-500 cycles but may vary depending on chemical composition and use
Energy Density Compared to lithium-ion batteries, lithium iron phosphate batteries have a slightly lower energy density and provide less energy per unit weight Higher energy density, delivering more power in a lighter package
Charge and discharge rate Able to accept high charge and discharge current to achieve fast charge and discharge Good charge/discharge rate, but may not be as fast as LiFePO4 in some cases
temperature range Operates efficiently over a wide temperature range of -20°C to 60°C or above More controlled temperature conditions are required for optimal performance and safety
Voltage stability Good thermal stability, FePO4 release amount is only 210j/g Voltage output tends to decrease linearly during discharge
Safety Excellent safety with low risk of thermal runaway or fire Safety profile is good, but the risk of thermal issues is slightly higher compared to LiFePO4. Additionally, lithium-ion battery leaks can occur, which can be dangerous
Application areas Ideal for applications where safety, longevity and stability are critical, such as electric vehicles, renewable energy storage and critical backup systems Widely used in portable electronics, laptops, smartphones and many consumer devices where energy density and weight are critical
Price Typically, the upfront cost is higher due to raw material and manufacturing costs. Lithium iron phosphate batteries may have a lower initial cost compared to lithium-ion batteries, but the total cost of ownership may vary based on factors such as cycle life.

Lithium iron phosphate (LiFePO4) batteries have a variety of advantages and disadvantages that make them suitable for some applications but less than ideal for others. Here are the main advantages and disadvantages of lithium iron phosphate batteries:


Safety: LiFePO4 batteries are known for their safety. They are less prone to thermal runaway, overheating, and the risk of fire or explosion than some other lithium-ion battery chemistries. This is due to the stable and strong crystal structure of LiFePO4.

Long cycle life: LiFePO4 batteries have a long cycle life and are able to withstand thousands of charge and discharge cycles without significant capacity loss when using lithium iron phosphate batteries compared to lithium-ion batteries. This makes them highly durable and cost-effective in the long run.

Stability: LiFePO4 batteries maintain a relatively stable voltage throughout most of their discharge cycles. This feature ensures stable power output, which is critical for applications requiring a stable power supply.

Wide Temperature Range: LiFePO4 batteries can operate effectively in a wide range of temperatures, from extremely cold to high temperatures. This versatility makes them suitable for use in a variety of environmental conditions.

Fast charging: LiFePO4 batteries can accept high charging and discharging currents, allowing for fast charging and discharging. This feature is very beneficial in applications that require fast power supply.

Environmentally Friendly: LiFePO4 chemistry is considered environmentally friendly as it does not contain toxic heavy metals like cobalt or nickel. It is a more environmentally friendly option than some other lithium-ion chemistries.

Low self-discharge: Compared to some other battery types, lithium iron phosphate batteries have a lower self-discharge rate than lithium-ion batteries, which means they can retain a charge longer when not in use.


Higher Cost: LiFePO4 batteries can have a higher upfront cost compared to some other lithium-ion batteries due to the cost of raw materials and manufacturing processes. However, their long cycle life can offset the initial cost in some applications.

Lower energy density: LiFePO4 batteries generally have a slightly lower energy density than some other lithium-ion battery chemistries. This means they store less energy per unit weight, which may limit their use in applications where space and weight constraints are critical.

Larger and heavier: Due to their lower energy density, LiFePO4 batteries can be larger and heavier for a given energy capacity than batteries with higher energy density. This may affect their suitability for portable applications.

Complex battery management: LiFePO4 batteries may require more complex battery management systems to ensure proper charging and discharging to maximize their lifespan and safety.

Hot Tags: 12.8V LiFePO4 Battery, China, Manufacturers, Suppliers, Factory, Customized, Easy-maintainable, Durable, Price, CE

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