New HC01 battery equalizer, it is my need !
This is a must have device anytime your going to string 12v batteries together in series strings. Batteries in series strings may become unbalanced over time, one will over charge while the other becomes undercharged. If you don’t want to have any problems with your solar energy storage system or other use, buy this device, it will work to keep your batteries balanced and working properly. This one has a voltage balance display, which is very helpful to be able to see the voltage balance at a glance.