No

Item

Standard

Test method

1

Discharge characteristics

 

0.3C₅A ≥100％

1.5C₅A ≥90％

a) After standard charged, rest for 30min and then discharge at0.2C₅Aand1C₅Ato the discharge cut-off voltage respectively. Charge/discharge cycle can be conducted for 5 times before meeting the Standards(the same below).

b) Discharging current and discharging time can be calculated by AH, and expressed by the percentage of nominal capacity. (Cycled by 3 times, when one of the three reaches the standard, it will meet the standard.)

2

Charge retentionunder normal condition

 

Residual capacity≥

nominal capacity *80％

Recovery capacity≥

nominal capacity *90％

Stored for 28 days after standard charge, discharge at0.3 C₅Ato the discharge cut-off voltage, then test the residual capacity. Teat the recovery capacity, if one of the three cycles can reach the standard, it represents the battery has reached the standard.

3

Cycle life

 

Capacity≥nominal capacity *80％

Conduct0.3C₅Acharge/0.3C₅Adischarge for 2000 continuous cycles, and then test capacity.