Magnum Energy Smart Battery Combiner. The ME-SBC is an innovative two-bank battery combiner. It is designed to monitor and charge a second battery using a portion of the current that is charging a main battery. This 25-amp combiner/isolator integrates an optional solenoid drive, remote voltage sense for more accurate sensing, High and Low battery cut-out to prevent over/undercharging, and automatic 12- or 24-volt operation.Connection to the oversized terminals is easy and simple. The basic design makes connecting the SBC as simple as it can get. Like other three-wire voltage followers, this is a very simple device to connect and setup. The universal controls and connections make this a perfect replacement product.The remote sense line can be used to monitor the battery voltage of a battery far away or at a charging source. Also, this is used to help minimize unnecessary cycling between combining and isolating, which can lead to early solenoid failure.