AA Rechargeable battery 1.5V 2000mAh

高温性能

Temp Performace

完全充电后置于55±2℃高温箱中恒温2h后，然后用0.2C₅A放电至3.0V。

After full charge, put cells into High cabin 55±2℃ for 2hs, then discharge to be 3.0V in 0.2C₅A.

电池放电时间不少于5h，电池外观无变形、无爆裂。Time to discharge cannot be less than 5h, no deformation and no explode.

低温性能

Low Temp Performance

完全充电后置于-10±2℃低温箱中恒温4h后用0.2CA放电，结束后将电池置于20±5℃条件下搁置2h，观察电池外观。

After full charge, put cells into -10±2℃ cabin for 4hs and then discharge with 0.2CA, when done keep the cells under 20±5℃ for 2hs, and check the cells.

电池放电时间不少于3小时，电池外观无变形、无爆裂。

Time to discharge cannot be less than 3hs, no deformation and no explode.

荷电保持能力

Charge Retention

完全充电后,在20±5℃条件下，将电开路搁置28天，再0.2C₅A放电。

After full charge, under 20±5℃, open circuit for 28 days, and then discharge with 0.2CA.

放电时间不少于4.25小时

Time to discharge can not be less than 4.25hs.

恒定湿热性能

Constance Hygrothermal performance

完全充电后，在40±2℃，相对湿度为90%-95%的恒温恒湿条件下搁置48h后，再取出放在20±5℃条件下搁置2h 再以1C₅A放电。

After full charge, keep the cells under 40±2℃, relative humidity 90%-95% for 48hs, and then take out to leave under 20±5℃ for 2hs, and then discharge with 11C₅A.

电池外观应无明显变形、锈蚀、冒烟或爆炸，放电时间不低于36min。

No deformation and no rust, no smoke or explode, discharge time cannot be less than 36mins.

振动

Vibration

完全充电后，采用正弦波进行振动，并以对数扫频方式在15min内从7Hz扫频到200Hz并返回到7Hz.振动沿样品互相垂直的3个方向进行，每个方向按上述对数扫频方式重复12次，振动3h。

After full charge, vibrate cells from 7Hz to 200Hz in 15mins to three directions and each 12 times, vibrate 3hs.

开路电压不低于９０％的初始电压，应不泄漏、不泄气、不破裂、不起火和不爆炸

Open circuit voltage cannot be less than 90% voltage, no leakage, no explode, no fire and no damage.

过充电保护性能

Overcharge Protection

电池完全充电结束后，恒流恒源设定为2倍标称电压，电流设定为2C₅A，用恒流恒压源给电池加载7h.

After full charge, constant current set 2 times standard voltage, 2C₅A current,and loade the cells in constant voltage for 7hs.

电池应不泄漏、不泄气、不破裂、不起火和不爆炸

no leakage, no explode, no fire and no damage.

过放电保护性能

Overdischarge Protection

电池以0.2C₅A放电至终止电压后，外接30Ω负载电阻放电7h。

Discharge with 0.2C₅A to the cut-off voltage, and lode 20mΩ IR to discharge 7hs.

电池应不泄漏、不泄气、不破裂、不起火和不爆炸

no leakage, no explode, no fire and no damage.

短路保护性能

Short circuit Protection

电池完全充电后,短路其正负极1h，短路导线电阻80±20 mΩ

After full charge, make it short circuit for 1h, and the IR is 80±20 mΩ.

电池应不泄漏、不泄气、不破裂、不起火和不爆炸

no leakage, no explode, no fire and no damage.

重物冲击

Impact

电池置于一个平面上，并将一个Φ15.8 ±0.2mm的钢柱置于电池中心，钢柱的纵轴平行于平面，让质量9.1±0.1kg的重物从610±25mm高度自由落到电池中心上方的钢柱上，测试完毕观察6h.

Put the battery in the flat, and put a stick Φ15.8 ±0.2mm on the center, vertical to the flat and deop a heavy ting 9.1±0.1kg from 610±25mm to the steel stick which is up above the battery cell, check it 6h after test.

电池应不起火，不爆炸，电池允许变形

no leakage, no explode, no fire and no damage.

循环寿命

Cycle Life

电池循环寿命试验应在23℃±2℃，以0.2C₅A充电，当电池端电压达到充电限制电压时，改为恒压充电，直到充电电流小于或等于20mA，停止充电搁置0.5h-1h，然后以0.2C₅A电流放电至终止电压，放电结束后，搁置0.5-1h，再进行下一个循还，直至连续两次放电时间小于3h，则认为寿命终止。

Charge cells in 0.2C₅A under 23℃±2℃, when voltage reach the charge limited voltage change to constant charging, when the current less or equal 20mA, stop charging and leave 0.5h-1h, and then discharge in 0.2C₅A to the cut-off voltage, till the two times discharge time less than 3hs, then end the cycle.

循环寿命不低于500次

Cycle life cannot be less than 500 times