产品规格及各路参数等：
Product basic information产品基本信息
Items项 目 | Parameter参 数 |
Battery model电池型号 | M9电池/15S2P/54.3V/4.4Ah |
Design scheme设计方案 | |
Nominal voltage标称电压 | 54.3V |
Shipment voltage出货电压 | ≥54.3V |
Minimum capacity***小容量 | 4100mAh(0.2C discharge放电) |
Typical capacity典型容量 | 4300mAh(0.2C discharge放电) |
Charging voltage充电电压 | 63V |
Standard charging标准充电 | 880mA/63V |
Fast charging快速充电 | 2200mA/63V |
Discharging cut-off voltage 放电截止电压 | 34.5V |
Battery pack impedance 电池内阻 | ≤1000mΩ |
Electrical characteristics充放电性能
No. | Items项 目 | Test Method测试方法 | Criteria标准 |
1 | Standard Charge 标准充电 | Charging the cell initially with constant current at 0.2Cand then with constant voltage at 4.2*nV till charge current declines to 0.02C. 先以0.2C 恒流充电，当电芯电压达到4.2*nV 后，改为恒 压充电直到充电电流小于或等于0.02C。 | N.A |
2 | Minimal Capacity ***小容量 | The capacity means the discharge capacity of the cell, which is measured with discharge current of 0.2Cwith 2.75*nV cut-off voltage after the standard charge. 电芯满充电后，以0.2C 电流连续放电至2.75*nV 截止电压 所放出的容量。 | ≥4100mAh |
3 | Charge/Discharge Cycle 充放电循环 | The capacity on 0.5C discharge shall be measured after 300 cycles Of 0.5C charge and discharge at 23 ±2℃. 23±2℃条件下0.5C 充放电循环300 次。 | Capacity≥70% 容量≥70% |
4 | Retention Capability 荷电保持能力 | After full charging, storing the battery 28 days with 20± 5°C condition , and then staying 1 hours with discharge current of 0.2C till 2.75*nV cut-off voltage. 电芯满充电后，在20±5℃的环境条件下存放28 天，然后 以0.2C 电流连续放电至2.75*nV 终止电压。 | Capacity≥85% 容量≥85%
|
