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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Customized Industrial Batteries 24V 225Ah Lifepo4 Lithium ion Battery with Metal Casing
1. General Information of 24V 225Ah Lifepo4 Lithium ion Battery
This specification defines the performance of rechargeable LiFePO4 battery pack manufactured by TOPBAND.
Describes the type, performance, technical characteristics, warning and caution of the battery pack.
2. Specification of 24V 225Ah Lifepo4 Lithium ion Battery
NO | Items | Characteristics | |
| 2.1 | Normal capacity | 225Ah | |
| 2.2 | Nominal energy | 5.76KWh | |
| 2.3 | Nominal voltage | 25.6V | |
| 2.4 | Internal resistance | ≤30mΩ | |
| 2.5 | Series/Parallel application | Not allowed | |
| 2.6 | Normal charge voltage | 29.2±0.2V | |
| 2.7 | Float charge voltage(for Standby use) | 27.6±0.2V | |
| 2.8 | Allowed MAX charge current | 80A | |
| 2.9 | Recommended charge current | ≤80A | |
| 2.10 | Allowed MAX discharge current | 100A 30min | |
| 2.11 | Pulse discharge current | Withstand the 350A/3s | |
| 2.12 | End of discharge voltage | 18.4~22.4V | |
| 2.13 | Dimension | Length: 477±2mm | |
| Width: 385±2mm | |||
| Height: 282±2mm | |||
| 2.14 | Weight (No accessories) | 65±2Kg | |
| 2.15 | Operation temperature | Charge | 0～45℃ |
| Discharge | -20～60℃ | ||
| Self-discharge rate | Residual capacity | ≤3%/Month; ≤15%/ year |
Recover capacity | ≤1.5%/Month; ≤8%/ year | ||
| 2.17 | Storage environment | ≤1month | -20～+60℃,5～75%RH |
| ≥3month | -10～+45℃,5～75%RH | ||
| Recommend environment | 15～35℃,5～75%RH | ||
3.Electrical Characteristics & Test Condition of 24V 225Ah Lifepo4 Lithium ion Battery
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 0.05C, and then rest for 1h.
NO | Items | Criterion | Condition | |
| 3.1 | Normal Capacity | 225Ah | 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 | -20℃(6h) | ≥70% | Ratio of Capacity @specified temperature |
| 0℃(6h) | ≥80% | |||
| 25℃(4h) | ≥100% | |||
| 55℃(4h) | ≥95% | |||
| 3.6 | 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. | |
4.1 Transport & Store
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.
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.
5. Dimensional Drawing
