Battery equalizer HA01 is used for the 12V lead-acid batteries which are connected in series to keep battery voltage balance.
When two or more in-series connected batteries are in charging / discharging / free status. The battery voltages maybe become different. One battery voltage is high and one is low.
The battery equalizer equalize/balance the battery voltage when it detect there are 20mV between two batteries. It shunt current from one battery (the higher voltage one) to the other battery (the lower voltage one). Until their battery voltage almost becomes same. This improve battery's performance and extent battery's life time.
Battery equalizer can be used for 24V, 36V, 48V and any other

Battery nominal voltage:2x12V
Optimizing current:0-5A
Quiescent current:Less than 3mA
Protection:Reverse polarity protection
Low Voltage Disconnect:10V
Installation:
1. Black cable:negative/- pole
2. Red cable:positive/+ pole
3. White cable:Battery B negative pole or Battery A positive pole.(The pole which connected Battery A and Battery B in series)
Before connecting the equalizer, please confirm the positive and negative poles of the battery pack to avoid the short circuit and reverse connection between the battery equalizer terminals.
Colour:Black
Material:Plastic
Size:70x70x27mm

Package Contents:
1 * Battery Equalizer