Attention: Before purchasing, please pay attention to the battery size and whether the plug is suitable for your RC device. The battery plug is a T-plug. This battery is suitable for RC cars, RC aircraft, FPV drones, quadcopters, RC rowing competition models, remote-controlled engineering vehicles, and electric toy car batteries (can only be installed if the voltage, size, and plug match) BATTERY PRECAUTIONS: Turn off the device when the battery level is low to avoid deep discharge.Be sure to disconnect the battery from the device when not in use.If the battery is bloated, swollen, leaking, overheated or any other abnormal phenomenon, do not use or charge it.Do not disassemble, puncture, impact or damage the battery. Do not ignite the battery.Do not overcharge the battery.