45A charger for 24VDC vehicle configuations. Light weight, small low profile size. Clean output poses no interference with radios and other mobile devices. 15A, 24VDC auxiliary output circuit with a power source selector switch for operating accessory loads i.e., air compressor pumps, handheld lights or handheld radios. Front panel connections for a remote display and auxiliary loads. Includes a heavy duty aluminum case designed for emergency vehicle use. Remote battery sensing output to compensate for longer charging cables