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Shenzhen Topband Battery Co., Ltd
A professional manufacturer of LiFePO4 battery / lithium iron phosphate, dedicated to designing, researching, manufacturing, and exporting LiFePO4 batteries( cell & pack & energy storage system) to
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Durable Lithium Iron Phosphate Lifepo4 Batteries 12V 125ah With Low Temp

Durable Lithium Iron Phosphate Lifepo4 Batteries 12V 125ah With Low Temp

Brand Name : Topband
Model Number : TB12125A-M108A_HEAT
Certification : UL1642, MSDS
Place of Origin : China
Price : Negotiable
Payment Terms : L/C, T/T
Supply Ability : 450Mwh/year
Delivery Time : 2~4weeks for samples; 4~6weeks for mass production
Packaging Details : standard export carton
Nominal voltage : 12.8V
Typical capacity : 125Ah
Charging temperature : -20C-45C
Material : LiFePO4
Warranty : 2 years
Dimension : 318*165*215mm
Weight : 16kg
Life cycle : over 2000 cycles
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Lithium Iron Phosphate Battery 12V125ah with low temperature function

- Smart wireless inside, Pioneer tech in the world
- Android/IOS APP monitor instant battery status

(SOC, battery voltage, remain AH, charge current, temp., life cycle, error)
- Easy-simple-fast, design for everyone.
- Free from specialized battery analysis

- Charge at -20℃

Model support smart Bluetooth connection feature:

  • (12V12ah/20ah/24ah/50ah/100Ah/125ah/150ah/200Ah/300Ah)

customized app is available

1. General Information

This specification defines the performance of rechargeable LiFePO4 battery pack TB12125A-M108A_HEAT manufactured by Shenzhen Topband Battery Co., Ltd, describes the type, performance, technical characteristics, warning and caution of the battery pack.

2. Specification




2.1Normal capacity125 Ah
2.2Nominal energy1.6KWh
2.3Nominal voltage12.8V
2.4Internal resistance≤30mΩ @1kHz AC
2.5Normal charge voltage14.6±0.2V
2.6Float charge voltage(for Standby use)13.8±0.2V
2.7Allowed MAX charge current80A
2.8Recommended charge current≤ 60A
2.9Allowed MAX discharge current100A for 30min.
2.10End of discharge voltage9.6~11V
2.11Pulse discharge currentWithstand the 350A/3S
2.12DimensionLength 318 ±3mm
Width 165 ±3 mm
Height 215 ±3 mm
2.13Weight (No accessories)About:16±1 Kg

Operation temperature


Self-discharge rate

Residual capacity

≤3%/Month; ≤15%/ year

Recover capacity

≤1.5%/Month; ≤8%/ year

Storage environment

≤1month-20~+60℃, 5~75%RH
≥3month-10~+45℃, 5~75%RH

Recommend environment

15~35℃, 5~75%RH

3. Test Conditions

3.1 Standard Test Conditions

3.1.1 Unless otherwise specified, all performance tests is required conducted at temperature 25℃±2℃, Humidity less than 45%~75%RH.

3.1.3 Unless otherwise specified, the tested product is required unused within two month after outgoing.

3.2 Standard Charge Mode

"Standard Charge" means at 25±2℃ charge to limit voltage with 0.33C constant current, then charge with constant voltage until current less than 0.02ItA.

3.3 Quick Charge Mode

" Quick Charge" means at 25±2℃ charge to limit voltage with 0.5 C constant current, then charge with constant voltage until current less than 0.02ItA.

3.4 Standard Discharge Mode

"Standard Discharge" means at 25±2℃ discharge to the cut-off voltage with 0.33C current.

3.5 Quick Discharge Mode

"Quick Discharge" means discharge to the cut-off voltage with 0.5C current.

4. Product Performance






Normal Capacity


After Normal charge, discharge @0.33C current to the end of discharge voltage.


Internal Impedance


@50% SOC @1kHz AC internal resistance test instrument.


Short circuit protection

Auto cutoff load when short circuit

Connect the positive and negative of this battery pack through a lead with 0.1Ω resistance.


Cycle life @DOD100%

≥2000 cycles

After Normal charge, discharge @0.33C current to the end of discharge voltage. Repeat above process until discharge capacity reduce to 80% of initial value.


Discharge temperature



the percentage

accord with criterion

Capacity @specified temperature

Capacity @ 25℃


Capacity retention rate

remain capacity


After normal charge, store the battery @25±5℃ for 28days, then discharge capacity @0.33C, the retention capacity accord with criterion.
3.8Heating functionLow temperature charging heating

Heating opening condition

Below the charging temperature protection -2℃

Temperature is greater than -30℃ (allowed to open the heating film the lowest temperature)

Satisfy the above two conditions to start heating

Heating closing condition

Stop heating if the temperature is greater than the ending temperature of heating;

The discharge state stops heating;

Under low temperature protection, stop heating after heating for more than one hour.

5. Protective circuit specification

The batteries are supplied with a LiFePO4 Battery Management System (BMS)that can monitor and optimized each single prismatic cell during charge & discharge, to protect the battery pack overcharge, over discharge, short circuit. Overall, the BMS helps to ensure safe and accurate running.

5.1Over chargeOver-charge protection for each cell3.75±0.05V
Over-charge release for each cell3.60±0.05V
Over-charge release methodUnder the release voltage
5.2Over dischargeOver-discharge protection each cell2.50±0.05V
Over-discharge release for each cell2.80±0.05V
Over-discharge release methodCharging
5.3Over currentDischarge over current protection

First level:110±10A, delay 25--35s

Second level: 400±50A, delay0.5--2s

Discharge over current releaseCharge or auto release after30S
Short circuit protection

500-520A 300—500us

5.4TemperatureCharge over temperature protectionProtect@65±5℃; Release@50±5℃;
Charge under temperature protectionProtect@-2±5℃; Release@3±5℃
Discharge over temperature protectionProtect@65±5℃; Release@50±5℃;
Discharge under temperature protectionReserve
MOSFET over temperature protectionProtect@103±10℃; Release@75±10℃;

Product Tags:

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