Battery Equalizer KBX104S LCD 4S 12V 24V 36V 48V Connect Voltage DC Inverter Active Balancer Lead Acid Batteries Monitor Used for connecting two batteries in series or parallel, used in a 12V 24V 36V 48V battery pack LCD display Low loss and convenient installation for customers Supports multi module splicing and can be used for multiple battery pack installation Improved battery performance Increased battery pack efficiency Enhanced safety and Extended battery pack lifespan Flexibility in cell replacement and Compatibility with different cell characteristics