the previous owner set up the truck with dual 12V batteries connected in series. Something drained them to the point of not being able to start. Questions are: 1. can I jump start from a 12V car and should I? 2. can I charge the batteries one at a time with a12V charger?
I have a 24V charger on order but want to start the truck sooner.
these may seem like stupid questions but I'm new to 24V vehicles systems.