Compatibility mjx 16208 16209 14209 14210 rc carbattery usage precautions 1 turn off the device when the battery level is low to avoid deep discharge 2 make sure to disconnect the battery from the device when not in use 3 if the battery is inflated swollen leaking overheated or any other abnormal phenomenon do not use or charge 4 do not disassemble puncture or damage the battery 5 do not overcharge the battery improper use such as short circuiting or overcharging can lead to explosions or fires battery parameters battery voltage 7 4vautomatic battery configuration 2sbattery capacity 3000mahup to discharge rate 25cbattery weight 147g 1pcsbattery size length 3 6 inches x width 1 3 inches x thickness 0 86 inches discharge connector t plugautomatic charging interface xh 3p plugbattery chemistry lithium polymerpackage included 1x mjx 2s 7 4v 25c 3000mah l i po battery