The Digital Mobile charge40 is a breakthrough in battery to battery, on-the-water charging technology.With your propulsion engine running, the Digital Mobile Charge40 allows you to safely use your engine starting battery to charge your house, bow thruster, windlass, or other auxilliary battery, without the danger of depleting your engine battery.
An alternative to using an automatic charging relay or battery combiner to parallel two battery banks when there is alternator output, a Digital Mobile Charge40 allows you to parallel batteries of different voltages, or even different chemistries. With a DMC, for example, you can use your 12 volt wet cell engine battery to charge your 24 volt AGM windlass battery.
Furthermore, your auxiliary battery is charged using a sophisticated, multi-stage charging regimen to get the job done as quickly as possible.

Simply connect your engine cranking battery and your house/auxiliary battery to the DMC, for up to 40 Amps per our to be transferred to your house battery bank. All the while, the DMC automatically monitors your engine battery voltage to ensure that it always remains fully charged.

Quick and easy installation
Optimal fast charge, conditioning and maintenance charging
Intelligently monitors and manages the health of the engine battery while providing maximum charge capacity to the auxiliary battery or bank
Automatic programming of charge/ absorption time
User programmable battery type selector
No direct connections to the engine alternator or outboard engine
Replaces the need for a battery isolator and advanced regulator
Engine battery cannot discharge through the DMC - even in the event of a unit failure
Ignition, over temperature and over voltage protected
Remote control and real time viewing display
Includes Hi-Vis LEDs
Dimensions: 10"L x 10"W x 3"H
Models are available for all combinations of 12 and 24 volt batteries