Operation CHARM: Car repair manuals for everyone.

Battery: Description and Operation

Battery System Components, Part 1:






Battery System Components, Part 2:






Primary And Secondary Battery Configuration:






Two 78 ampere-hour, maintenance-free batteries are standard with the 7.3L DIT diesel engine. The secondary battery is connected in parallel with the primary battery and provides more current to the starter motor when cranking and to the vehicle under load. The secondary battery is located on the right-hand frame rail to the rear of the B-pillar. An Econoline equipped with a 7.3L DIT engine has the following electrical configuration.







Environmental Protection
Ford Motor Company strongly recommends that lead-acid batteries be returned to an authorized recycling facility for disposal.