08
How to Confirm Charging Current
It is very important to know the maximum charging current of the battery as excessive
current could influence the life span of battery and/or cause damages. In addition, exces-
sive current can cause heating and/or explosion of the battery during the charging
process.
The charging and discharging capacity of battery is usually marked with C value. Multiply-
ing the charging C value and battery capacity equals to the maximum charging current
supported by the battery. For example, for a 1000 mAh battery with a charging capacity of
5C, the maximum charging current would be 1000*5=5000mA; therefore, the maximum
charging current is 5A.
For a lithium battery, if it is impossible to confirm the supported charging C value, please
set the charging current below 1C for the sake of its (lithium battery) safety.
The reference relation between C value and charging time: charging time ≥60 minutes/
charging C value (it therefore needs around 60~70 minutes to complete charging with 1C).
Due to differences in battery conversion efficiency, the period to complete the charging
might be extended.
