150/250 Amp Dual Smart Battery Isolator Universal 12V/24V Voltage Sensitive Relay

Concerning this item Voltage: 12V/24V The LCD screen provides a unique display of the voltages of the primary and auxiliary batteries. The device's auto-on function activates at 13.5V-16V for 12V or 27V-32V for 24V, with a 5-second delay. The auto-off function shuts off at 12.5V, disconnecting immediately if the voltage drops below 12.5V to protect the system. Dual battery smart isolator is an isolator that protects the main battery, when your car has two kinds of batteries, one is the driving battery that comes with our car itself, and the other is the living electricity that we installed later.  Two additional common isolators include: a dual battery isolator which operates when the main battery is low, automatically disconnecting it from the backup battery to allow car starting, and a driving generator which charges the driving battery while driving and, once fully charged, switches to charge the life battery through the dual battery isolator with its one-way output function. Compa