Recharge Battery:- Recharge battery and anctivate it------connect the board to the power and put the battery on the activate board to charge. Activate the Battery:- Activate the inside battery-------- batteries are not charge during long time storage, which you need to use alivation board connect activation board to the power, and put the battery on it, at last click "activation button".
 
Volt ammeter function
Charge status notice
High current overload protection
High current load protection
Voltage and current dual LED display
Full circuit reverse function
Battery voltage detction