Blue Sea Systems m-LVD Low Voltage Disconnect The m-LVD senses low battery voltage and automatically disconnects non-essential devices to save power for starting or to preserve battery life. The m-LVD is ideal for any single battery boat or vehicle that wants to avoid getting stranded with a dead battery. Remote Control Switch Functions Disconnect Voltage Adjustment - Sets desired disconnect voltage Override - Temporarily delays circuit disconnect for 10 minutes OFF - Temporarily disconnects cir