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| Quantity: | |
|---|---|
No | Item | Nominal parameter | Instruction |
1 | Nominal capacity | 75Ah | Standard charging and discharging，25±2℃ |
Min capacity | 72.5Ah | Standard charging and discharging，25±2℃ | |
2 | Nominal Voltage | 6.4V | |
3 | Charging cut-off voltage | 7.2±0.1V | Constant voltage and current charging |
4 | Discharging cut-off voltage | 5.0V | |
5 | Recommended charging current | 2A | |
6 | Max charging current | 5A | |
7 | Recommended discharging current | 2A | |
8 | Max discharging current | 5A | |
9 | Charging cut-off condition | ≤1.0A | Delay 1 minute to cut-off |
10 | Operation temp (charging) | 0~55℃ | Charging current ≤5.0A |
11 | Operation temp (discharging) | -20 ~60℃ | Discharging current≤5.0A |
12 | Storage temp | -20℃~45℃ | During storage, the battery must undergo a charge-discharge cycle every three months and be charged to 70% of its capacity |
No | Item | Standard | Test condition | ||
1 | Weight | About 3050g | |||
2 | Internal resistance | < 95 mΩ | |||
3 | Open-circuit voltage | 7.2V | At 25±2℃ working temp, drained completely, using 5A current fast charge to 100% and measurement | ||
4 | Cycle life | ≥80%* initial capacity after 2500 cycle times | At 25±2℃ operation temp, 2500 times charging and discharging cycle Charging voltage/current: 7.20V/5A, cut-off current ≤1A Discharging current: 5A (cut-off voltage 5.0V) Cycle interval time: 10minutes | ||
5 | Energy retention capacity | ≥ 80% | At 25±2℃ operation temp, placement 28 days after standard charging then to calculate | ||
6 | Deep discharging | Same with initial capacity | After standard charging, at 25±2℃ operation temp With a 80-ohm resistor for 24 hours to discharge ,then use 5A current charging to 7.2V, cut-off current≤1A | ||
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Size: 295x105x65(HxLxW) mm
