New in box. Apparently Isolators don't play nice with Lithium batteries, so I needed a DC to DC charger to charge my house battery (lipo4) from my starting battery (Lead-acid) so I couldn't use this.
Suitable for 12VDC Marine, RV, SUV, Boat, Bus and Solar applications
140A Dual battery Isolator w/different cut-in and cut-out voltage
Kit contains all components to install dual battery system
Prioriyty charging for starting battery
Fully automatic
Easy install