The equalizer is proven to extend the life span of the batteries and increase the efficiency of the energy storage. All the batteries will equally supply the maximum amperage when the voltages are properly balanced. 

The Battery Balancer equalizes the state of charge of two series connected 12V batteries, or of several parallel strings of series connected batteries. When the charge voltage of a 24V battery system increases to more than 27V, the Battery Balancer will turn on and compare the voltage over the two series connected batteries. The Battery Balancer will draw a current of up to 1A from the battery (or parallel connected batteries) with the highest voltage. The resulting charge current differential will ensure that all batteries will converge to the same state of charge.

If needed, several balancers can be paralleled.
A 48V battery bank can be balanced with three Battery Balancers.

Demo

With the Battery Balancer demo web-app you can demonstrate on your phone or tablet how the battery balancer works. There are two sliders on each side of the screen. With these sliders you can create an out of balance battery system. As soon as you release the slider, the balancer will then operate based on the specifications in the data-sheet. The onscreen LEDs and energy flow will react accordingly.

Steps to install it as a web-app