Rechargeable power supply Lithium Polymer Battery 250mAh 502030

ShenZhen Kingbolai Battery3.7V Li-polymer with connector and wireNominal Capacity: 250mah
Nominal Voltage: 3.7v
Size: Customized
NO.ItemsTest Method and ConditionCriteria1Standard ChargeCharging the cell initially with constant current at 0.2C and then with constant voltage at 4.2V till charge current declines to 0.02C
0.2C4.2V,4.2V≤0.02C2Rated CapacityThe capacity means the discharge capacity of the cell, which is measured with discharge current of 0.2C with 3.0V cut-off voltage after standard charge.
,0.2C3.0V.≥480mAh3Cycle LifeTest condition:
Charge:0.2C to 4.2V
Discharge: 0.2C to3.0V
80% or more of 1st cycle capacity at 0.2C discharge of Operation
:
:0.2C4.2V
:0.2C3.0V
80%,≥3004Self-dischargeAfter the standard charging, storied the cells under the condition as No.6.4 for28 days, then measured the capacity with 0.2C till 3.0V
,No.6.428,0.2C3.0V.Residual capacity >90%
>90%5Initial impedance of cellInternal resistance measured at AC 1KHz after 50% charge
,AC 1KHz≤80mW6Temperature
Characteristics1. According to item 4.1.1, at 25±5ºC.
2. Capacity comparison at each temperature, measured with constant discharge current 0.2C with 3.0V cut-off. Percentage as an index of the capacity compared with 100% at 25ºC
1.25±5ºC,4.1.1.
2.,0.2C3.0V.25ºC.-20ºC: ≥50%
25ºC: 100%
60ºC: ≥85%
Product PicturesOur Advantages(1). Competitive price(2). Stable Quality(3).0% Mercury &Cadmium(4). prompt delivery(5). Battery factory(6). Best serviceFactory Tour
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