Features Display Voltage This battery balancer can be adapted to model lithium battery voltage detection and balance and discharge battery items, it can display the voltage of each battery cell during this time. Overheating Prevention The back of the balancer is designed with ventilation to ventilate and prevent overheating for safer use. THREE FUNCTIONS - With the functions of voltage detection, balancing and discharging, you can adjust the balancing cut-off voltage and discharge cut-off voltage, which are essential tools for the model aircraft player. Indicate anomaly: This balancer can provide momentary voltage readings and immediately indicate abnormal batteries. 3 Keys Control Our balancer is small and lightweight with only 3 control keys, easy to control with one hand. Specification: Item Type: Battery Balancer Material: ABS Package list: 1 x Battery Balancer 1 manual. Note: The maximum balance and discharge current of each battery is 400mA. Package List 1 x Battery Balancer 1 x Manual