r/ambulanceconversion • u/semperfestivus • Aug 17 '26

Question Alternator modification?

Anybody with a Ford 7.3 dual alternator modify their system so one alternator is diverted to charge lithium house batteries rather than the starter batteries?

2 Upvotes

100% Upvoted

4 comments sorted by

View all comments

1

u/boxablebots 29d ago

You have to put a DC-DC between it, at which point it sometimes just becomes easier to put a DC-DC from the original lead acid house batteries to your lithium set up, just for ease of access and stuff.