Victron Energy Battery Balancer

The Battery Balancer equalizes the state of charge of two series connected 12Vbatteries, or of several parallel strings of series connected batteries. Whenthe charge voltage of a 24V battery system increases to more than 27V, theBattery Balancer will turn on and compare the voltage over the two seriesconnected batteries. The Battery Balancer will draw a current of up to 1A fromthe battery (or parallel connected batteries) with the highest voltage. Theresulting charge current differential will ensure that all batteries willconverge to the same state of charge. What's in the box * 1x Battery Balancer