LFP Rechargeable Battery 3.2V 3300mAh

Item : LiFePo4 battery
Voltage: 3.2V
Capacity: 3300mAh
Dimension:D26.3*H65.5mm
Weight:86g

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Specification

Model:LFP rechargeable battery 26650 3300mAh

1. Specifications            
No.

序号

Item

项目

General parameter

常规参数

Remark

备注

1 Shell Material

壳体材质

Ni-plate Steel

镀镍钢壳

2 Nominal capacity

标称容量

3300mAh 0.5C5A
3 Minimum capacity

最小容量

3200mAh 0.5C5A
4 Nominal voltage

标称电压

3.2V
5 Maximum charge voltage

充电最高电压

3.65V
6 Discharge cut-off voltage

放电截止电压

2.0V
7 Maximum continuous

charge current

最大持续充电电流

1 C5A
8 Maximum continuous

discharge current

最大持续放电电流

5 C5A
9 Internal impedance

内阻

<25mΩ Measured at AC1KHz of 50%SOC

半电态下交流 1KHz 测量

10 Battery weight

电池重量

Approx.86g

约 86g

11 Battery diameter (d)

电池直径

26.3±0.2mm
12 Battery height (h)

电池高度

65.5±0.5mm
13 Standard charge

标准充电

Constant Current 0.5C5A, Constant Voltage 3.65V,

Cut-off Current 0.05C5A.

持续电流0.5C5A,

持续电压3.65V,

截止电流0.05C5A

2.Electric Performance

No.

序号

Test Item

检测项目

Test Method

测试方法

Test Standard

检测标准

1 Normal temperature discharge performance Standard charge, then rest for 10min and discharge  at  0.5C5A、1C5A 、3C5A ,

5C5A to 2.0V respectively.

Discharge  capacity/Nominal capacity×100%.

0.5C5A≥100%

1C5A≥95%

3C5A≥90%

3C5A≥90%

2 Normal temperature ratio charging performance. At normal temperature environment, let stand for 1h after the discharge standard with  2C  constant  current  charging  to 3.65V, let stand for 1h, 1C discharge to 2.0V Discharge capacity/Nominal capacity×100%≥80%
3 Normal Temperature Storage Store  for  28days  after  standard  charge,then discharge at 0.2C5A   to   2.0V measuring residual capacity; Then standard  charge/discharge cycle for 3times to obtain the recoverable capacity. Residual  capacity≥Nominal capacity×85%

Recoverable capacity≥Nominal capacity×92%

4 Cycle Life After 2000 cycles at standard charge and discharge, the residual discharge capacity is above 80% of initial capacity. ≥2000 cycles
5 Storage Characteristics Stored for 12 months in room-temperature

at 50%SOC.After storage cell shall be conducted    standard    charge/discharge cycle for 5 times to obtain the recoverable capacity.

Recoverable capacity≥Nominal capacity×90%
6 Power performance Battery 1C constant current constant voltage charge cut-off current 0.05C to 3.65V C, put aside 30 min, exiled to 1C constant electric 30 min, adjust the sample SOC to 50%; Aside 30 min, with maximum discharge current discharge 5s,put 1min, then 1C discharge to  2.0V,collect data, computing power  
7 Discharge temperature Characteristics Standard charged in normal temperature,stored  under  the  following  temperature for 3h, then discharged at constant current of 0.2 C5A to 2.0V. Discharge  capacity/Nominal capacity×100%

-20℃  ≥40%

0℃≥65%

10℃≥80%

25℃≥100%

60℃≥95%

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