The IPS-BB-24-LED is a voltage equalizing device for AGM, GEL, VRLA batteries of 12V that are connected in series, for example, in 24V, 36V, 48V configurations.
Equalizing the voltage on the batteries during operation extends battery life. Balancer starts equalizing voltage as low as 20mV difference.
LED charge indicators allow you to check the energy in your batteries.