How to Wire On-Board Marine Battery Chargers
Battery chargers are wired into a boat's electrical system. Wiring the charger to a battery switch permits the charging of the individual batteries or battery banks. The switch can be configured to charge both batteries or battery banks at once. Mounting the charger in the vessel keeps the charger where it will do the most good--connected to the batteries. This is useful if you are stuck with low batteries and need a recharge. Power from a generator, shore power or even AC power from another vessel can be used to get you going again
Instructions Things You'll Need:
Battery cable (sized)
Battery terminal lugs
Mount the battery switch with the mounting kit provided by the manufacturer. The switch should be accessible but close to the battery or battery banks.
Mount the battery charger in a location that will be accessible but protected from the elements. Mount the charger close to the battery switch to reduce the size of the charger leads.
Connect the battery cables to the battery switch. Mount the battery cables onto their corresponding terminal studs on the battery switch.
Lay out the battery positive cable from the charger to the switch and cut it to length with the cable cutters. Strip 3/4 inch of insulation from the cable ends with a razor knife. Splice the cable to the hot wire from the charger with a **** connector and the terminal crimper. Crimp a terminal lug onto the battery end of the cable with the lug crimper and a hammer. Connect the terminal lug at the battery switch positive output terminal.
Lay out a battery cable from the charger to the battery negative terminal block. Cut the cable to length and strip 3/4 inch of insulation from the ends with a razor knife. Connect the battery negative cable to the charger negative power lead with a ****-splice and the terminal crimpers. Crimp a terminal lug onto the terminal block end of the cable with the lug crimper and a hammer. Connect the terminal lug at the battery negative terminal block post.
Tips & Warnings
Set the switch to "1," "2" or "both" to charge battery bank 1, bank 2 or both batteries at once.
on Jan 07, 2010 | Mercedes-Benz C230 Cars & Trucks