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
NO | Items | Characteristics |
| 2.1 | Normal capacity | 125 Ah |
| 2.2 | Nominal energy | 1.6KWh |
| 2.3 | Nominal voltage | 12.8V |
| 2.4 | Internal resistance | ≤30mΩ @1kHz AC |
| 2.5 | Normal charge voltage | 14.6±0.2V |
| 2.6 | Float charge voltage(for Standby use) | 13.8±0.2V |
| 2.7 | Allowed MAX charge current | 80A |
| 2.8 | Recommended charge current | ≤ 60A |
| 2.9 | Allowed MAX discharge current | 100A for 30min. |
| 2.10 | End of discharge voltage | 9.6～11V |
| 2.11 | Pulse discharge current | Withstand the 350A/3S |
| 2.12 | Dimension | Length 318 ±3mm |
| Width 165 ±3 mm |
| Height 215 ±3 mm |
| 2.13 | Weight (No accessories) | About:16±1 Kg |
| 2.14 | Operation temperature | Charge | -2℃～45℃ |
| Discharge | -20～60℃ |
| 2.15 | Self-discharge rate | Residual capacity | ≤3%/Month; ≤15%/ year |
Recover capacity | ≤1.5%/Month; ≤8%/ year |
| 2.16 | 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
NO | Items | Criterion | Condition |
| 3.1 | Normal Capacity | 125Ah | After Normal charge, discharge @0.33C current to the end of
discharge voltage. |
| 3.2 |
Internal Impedance | ≤30mΩ | @50% SOC @1kHz AC internal resistance test instrument. |
| 3.3 | 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. |
| 3.4 |
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. |
| 3.5 | Discharge temperature characteristic@0.33C | -20℃(6h) | ≥70% | 
the percentage accord with criterion |
|
Capacity @specified temperature Capacity @ 25℃ |
| 0℃(6h) | ≥80% |
| 25℃(4h) | ≥100% |
| 55℃(4h) | ≥95% |
| 3.6 | Capacity retention rate | remain capacity ≥96% | After normal charge, store the battery @25±5℃ for 28days, then
discharge capacity @0.33C, the retention capacity accord with
criterion. |
| 3.8 | Heating function | Low 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.
| No | Item | Content | Criterion |
| 5.1 | Over charge | Over-charge protection for each cell | 3.75±0.05V |
| Over-charge release for each cell | 3.60±0.05V |
| Over-charge release method | Under the release voltage |
| 5.2 | Over discharge | Over-discharge protection each cell | 2.50±0.05V |
| Over-discharge release for each cell | 2.80±0.05V |
| Over-discharge release method | Charging |
| 5.3 | Over current | Discharge over current protection | First level:110±10A, delay 25--35s Second level: 400±50A, delay0.5--2s |
| Discharge over current release | Charge or auto release after30S |
| Short circuit protection | 500-520A 300—500us
|
| 5.4 | Temperature | Charge over temperature protection | Protect@65±5℃; Release@50±5℃; |
| Charge under temperature protection | Protect@-2±5℃; Release@3±5℃ |
| Discharge over temperature protection | Protect@65±5℃; Release@50±5℃; |
| Discharge under temperature protection | Reserve |
| MOSFET over temperature protection | Protect@103±10℃; Release@75±10℃; |
