Features:
Original Hubsan brand.
Easy to install.
High quality and durable performance.
7.4V 610mAh 15C Lipo Battery for longer flight time.
Compatible with Hubsan X4 H502S H502E RC Quadcopter.
Features:
3.7V 400mAh lipo battery; enough capacity and safe to use.
Easy to plug in and take out.
High quality and portable to carry.
Over charge for protection for every charging port.
Compatible with JJR/C H37 mini drone.
features multiple protecting functions, such as overheat protection, reverse polarity protection and so on. It can also automatically limit the current when exceeds the max. power.
Features:
Dual testing modes for selection: electronic load mode and battery capacity test mode.
High quality large radiator: dust-proof and stable for performance.
LED digital nixie tube display: durable and clear for readings.
Rotary encoder design: easy and convenient for operation.
Multiple-scale buzzer and LED indicators: indicating the working status.
Automatic storage function: can store the setting parameters when power-off; record all parameters and status after power-up.
Fan control: intelligent fan control, infinitely variable speed automatically according to the radiator temperature.
Protections: Overheat protection, transient overpower protection, over-pressure protection, reverse polarity protection and power supply voltage abnormal protection.