Using the original charger of JJRC C8815 RC car is a safer way, connecting the battery for charging according to the instruction manual, avoiding charging in high or low temperature environment (generally suitable charging temperature between 10℃ – 30℃).
Do not charge more than one battery at the same time, in order to avoid unbalanced charging and other situations, and unplug the charger in a timely manner after the battery is full, which is the best charging method for JJRC C8815 RC car batteries, helping to extend the life of the battery and to protect the safety of use.