1.1  容量

Capacity

标称容量Rated Capacity：2000mAh（0.2CA放电                 Discharge）

最小容量Capacity(min):1950mAh(0.5CA放电Discharge)

1.2  标称电压

Rated Voltage

3.7V

1.3  电池内阻Internal Resistant

 ≤70mΩ  (with PTC)

1.4  放电终止电压Discharge End Voltage

2.75V

1.5  充电上限电压Charge Upper Limit Voltage

4.20±0.02V

1.6  标准充电电流Standard Charge Circuit

0.5C A

1.7  快速充电电流Fast Charge Circuit

1C A

1.8  标准放电电流Standard Discharge Circuit

0.5C A

1.9  快速放电电流Fast Discharge Circuit

1C A

1.10 最大放电电流Discharge Circuit (max)

2C A

1.11 电池重量Weight

45±1g

1.12 最大尺寸Dimension(max)

直径(φ)   :  18.3mm

高度(H)   :  65.0mm  （参见附图1）

                       (see figure 1)

1.13 工作温度Operational Temperature

充电charge   ：0 ~ 45℃;

放电discharge  ：-20 ~ 60℃

1.14 贮存温度Storage Temperature

1个月内within a month  ：-5 ~ 35℃

6个月内within six months ：0 ~ 35℃

2.1标准充电

Standard Charge

恒流恒压充电(CC/CV)

constant circuit and constant voltage charge

恒流constant circuit   ：1000mA

上限电压upper limit voltage：4.20V

截止电流end circuit：20mA

2.2标准放电

Standard Discharge

恒流放电(CC) constant voltage discharge

恒流constant circuit   ：1000mA

终止电压end voltage：2.75V

项目Items

测试程序Testing Procedure

标准Requirements

4.1.1标称电压Rated Voltage

电池按6.1充电后，按6.2放电过程的平均工作电压

Charge according to 6.1, then calculate the average voltage during discharge process according to 6.2

3.7V

4.1.2放电性能Discharge Performance

电池按6.1充电后1小时内以0.5CA恒流放电到2.75V

Charge according to 6.1, then discharge within 1 hour with constant circuit of 0.5CA to the end voltage is 2.75V

≥120min

电池按6.1充电后1小时内以1.0CA恒流放电到2.75V

Charge according to 6.1, then discharge within 1 hour with constant circuit of 1.0CA to the end voltage is 2.75V

≥57min

4.1.3循环寿命Cycling Life

在环境温度20±5℃的条件下，以0.5CA先恒流充电至上限电压，再恒压充电至充电电流≤20mA；搁置0.5h后以0.5CA放电至2.75V，放电结束后搁置0.5-1h后进行下一个循环，直至连续两次放电时间小于72min，则认为寿命终止。

Under the ambient temperature of 20±5℃,charge with a constant circuit of0.5CA to upper limit voltage, then charge with constant voltage till the circuit is no more than 20mA; lay the battery aside for 0.5 hour, then discharge with 0.5CA till the end voltage is 2.75V; lay the battery aside for 0.5-1 hour before next cycle; when the discharge time of the consecutive discharge is both lower than 72 minutes, the cycle life is over.

≥500次Times

4.1.4荷电保持能力

Capacity Holding

按6.1充电,在温度20±5℃的环境下放置28天，然后以0.2CA放电至2.75V,电池放电容量≥90%标称容量。

Charge according to 6.1, lay the battery aside for 28 days in the ambient temperature of 20±5℃,then discharge with0.2CA till the end voltage 2.75V appears, the capacity given out should be no less than 90% of the rated capacity.

容量Capacity≥1800mAh

4.1.5存贮Storage

自生产日期到测试日期不足3个月的电池按6.1充电方式充入40%－50%的容量,然后在环境温度20±5℃,相对湿度45%－85%的环境中存贮12个月，存贮期满后按6.1充满电，0.2CA放电至2.75V。

As for the battery life less than 3 months, charge into 40-50% of the rated capacity according to 6.1, then store for 12 months under a condition of ambient temperature of 20±5℃and 45%-85% RH; after storage, charge according to 6.1, then discharge with0.2CA till the end voltage is 2.75V.

放电时间Discharge Time≥4h.