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 100AH Deep Cycle Lithium Battery, UPS Rechargeable lifepo4 Battery, Bluetooth Communication
1. General Information
This specification defines the performance of rechargeable LiFePO4 battery pack TB-BL24100F-S110A manufactured by Shenzhen Topband Battery Co., Ltd, describes the type, performance, technical characteristics, warning and caution of the battery pack.
2. Specification
| NO | Items | Description | |
| Normal Specification | |||
| 1 | Nominal Voltage | 25.6V (LFP-4S) | |
| 2 | Normal Capacity | 100Ah | |
| 3 | Internal Resistance | ≤30mΩ @1kHz AC | |
| Standard Charge | |||
| 4 | Battery operation temperature range @charging | 0~45℃ | |
| 5 | Normal charge voltage | 29.2±0.2V | |
| 6 | Recommended float charge voltage(for Standby use) | 27.6±0.2V | |
| 7 | Allowed MAX charge current | 80A@Battery initial Temp 25±5℃ | |
| 8 | Recommended charge current | ≤50A | |
| Standard Discharge | |||
| 9 | Battery operation temperature range @discharging | -20~60℃ | |
| 10 | Output voltage range | 20.0~29.2V | |
| 11 | Allowed discharge current | 100A | |
| 12 | Pulse discharge current | 400A withstand 3s | |
| 13 | Discharge cut-off voltage | 18.4~22.4V | |
| Mechanical Characteristics | |||
| 14 | Dimension | Length 483.5±2mm | |
| Width 170±2mm | |||
| Height 241±2mm | |||
| 15 | Weight | About: 24.8±0.5Kg | |
| Storage | |||
| 16 | Storage Temperature & Humidity Range | Short: within one month | -20~+ 60℃, 5~75%RH |
| Long term: above one month | -10~+45℃, 5~75%RH | ||
| 17 | Self-discharge rate | Residual capacity | ≤3% per month; ≤15% per year |
| Reversible capacity | ≤1.5%per month; ≤8% per year | ||
3. Electrical Characteristics & Test Condition.
@Ambient Temperature 25±5℃ & Humidity 45%~75%.
| NO | Items | Criterion | Condition | |
| 1 | Internal Impedance | ≤30mΩ | @50% SOC @1kHz AC internal resistance test instrument | |
| 2 | Nominal Capacity | 100Ah | After Normal charge, discharge @0.33C current to the end of discharge voltage. | |
| 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. | |
| 4 | MAX charge Current | 100A | Charging with this current for more than 0.5h and the added temperature of battery pack less than 20℃. | |
| 5 | MAX discharge Current | 100A | Discharging with this current for more than 0.5h and the added temperature of battery pack less than 35℃. | |
| 6 |
Cycle life (DOD%100) | ≥2000cycle | Discharge with the current of 0.5C until it can’t discharge, and then rest it for 1h. Charge the battery following CC(0.33C)/CV(14.6V) mode to full capacity, and then rest it for 1h. Repeat above process until full charged capacity is no more than 80% of normal value. Accumulated times is defined as cycle life. | |
| 7 |
Discharge Temperature Characteristics | -20℃ | 70% | At 25±5℃ discharge the battery with the current of 0.33C to the cut-off voltage and record charge capacity. Store the battery at various temperatures for 2h and discharge the battery with 0.33C to the cut-off voltage. |
| 0℃ | 80% | |||
| 25℃ | 100% | |||
| 55℃ | 95% | |||
| 8 | Charge Retention ability | 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.
| Test item | Content | Criterion |
| Over charge | Over-charge protection for each cell | 3.75±0.03V |
| Over-charge release for each cell | 3.60±0.03V | |
| Over-charge release method | Under the release voltage | |
| Over discharge | Over-discharge protection for each cell | 2.50±0.05V |
| Over-discharge release for each cell | 2.80±0.05V | |
| Over-discharge release method | Charging | |
| Over current | Discharge over current protection | 115A±10A,delay time 20±5s |
| Battery temperature | Battery Over temperature | Protection @65±3℃, Release @50±3℃ |
| Charge lower temperature | Protection @0±3℃, Release @4±3℃ |
5. Applications
