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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24V 125Ah Lifepo4 Deep Cycle Lithium Battery Electric Forklift Environmental-friendly
1. About us
Shenzhen Topband Battery Co., Ltd, a company professional to do LiFePO4 battery, which is founded in 1996 and listed in Shenzhen in 2007. There are over 300 R&D engineers and about 3,000 employees in the 70,000 square meters Topband industrial park. We can provide One -Stop Solution of new energy, from cell, BMS/PCM to battery pack assembling.
2. Specification
| NO | Items | Characteristics | |
| 2.1 | Normal capacity | 125Ah | |
| 2.2 | Nominal energy | 3.2KWh | |
| 2.3 | Nominal voltage | 25.6V | |
| 2.4 | Internal resistance | ≤30mΩ @1kHz AC | |
| 2.5 | Normal charge voltage | 29.2±0.5V | |
| 2.6 | Float charge voltage(for Standby use) | 27.6±0.2V | |
| 2.7 | Allowed MAX charge current | 100A | |
| 2.8 | Recommended charge current | 80A | |
| 2.9 | Allowed MAX discharge current | 100A | |
| 2.10 | End of discharge voltage | 18.4V | |
| 2.11 | Dimension | Length 520±3 mm | |
| Width 269±3 mm | |||
| Height 220±3 mm | |||
| 2.12 | Weight (No accessories) | 32.2±0.5Kg | |
| 2.13 | Operation temperature | Charge | 0～45℃ |
| Discharge | -20～60℃ | ||
| 2.14 | Self-discharge rate | Residual capacity | ≤3%/Month; ≤15%/ year |
| Recover capacity | ≤1.5%/Month; ≤8%/ year | ||
| 2.15 | Storage environment | ≤1month | -20～+60℃,5～75%RH |
| ≥3month | -10～+45℃,5～75%RH | ||
| Recommend environment | 15～35℃,5～75%RH | ||
Testing Conditions: Ambient Temperature: 25±5℃; Huminity:45%~75%.
Normal charge:Charge battery under CC(0.33C)/CV(29.2V) mode until over charge protection or the charge current reduce to 0.02C, and then rest for 1h.
| 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% |
Capacity @specified temperature Capacity @ 25℃ the percentage accord with criterion
|
| 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. | |
4. Circuit Protection
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 |
| 4.1 | Over charge | Over-charge protection for each cell | 3.90±0.03V |
| Over-charge release for each cell | 3.60±0.03V | ||
| Over-charge release method | Under the release voltage | ||
| 4.2 | Over discharge | Over-discharge protection each cell | 2.30±0.03V |
| Over-discharge release for each cell | 2.80±0.03V | ||
| Over-discharge release method | Charging | ||
| 4.3 | Over current | Discharge over current protection | 300~500A,delay time 50~200ms |
|
Discharge over current release | 30s after cutoff the load. | ||
| Short circuit protection |
Do not short-circuit the electrodes
| ||
| 4.4 | Temperature | Charge over temperature protection | Protect@55±5℃; Release@45±5℃; |
| Charge under temperature protection | Protect@0±5℃; Release@10±5℃ | ||
| Discharge over temperature protection | Protect@65±5℃; Release@55±5℃; | ||
| Discharge under temperature protection | Protect@-20±5℃; Release@-10±5℃; |
5. Dimension Drawing
6. Transportation & Storage
♦ The battery need to be charged every 6 months if out of use
♦ No fall down, no pile up over 6 layers, and keep face up.
7. Warning & Tips
Please read and follow the specification and caution remarks on battery surface before use the battery. Improper use may cause heat, fire, rupture, and damage or capacity deterioration of the battery. SHENZHEN TOPBAND BATTERY CO., LTD. Describes is not responsible for any accidents caused by the usage without following our specification.
Warning
♦Battery must be far away from heat source, high voltage, and no exposed in sunshine for long time.
♦Never throw the battery into water or fire;
♦Never reverse two electrodes when use the battery;
♦Never connect the positive and negative of battery with metal;
♦Never knock, throw or trample the battery;
♦Never disassemble the battery without manufacturer's permission and guidance.
♦Never use mixed with other type of battery;
Tips
♦Keep the battery against high temperature. Otherwise it will cause battery heat, get into fire or lose some function and reduce the life.
♦When battery run out of power, please charge your battery timely (≤15day).
♦Please use the matched or suggested charger for this battery.
♦If battery emit peculiar smell, heating, distortion or appear any abnormity, please stop using.
♦If the battery leaks and get into the eyes or skin, do not wipe, instead, rinse it with clean water and see doctor immediately.
♦Please far away from children or pets.
♦It is strictly prohibited any series between the battery packs. Any requirements on serials connection, please contact TOPBAND for details.