05 CM870

[Rawze]

(01-28-2024 )3406E Wrote:  ... had to put the booster on override once or twice
...

That will absolutely FRY the electronics in a modern truck. Its more then +24volts shoved onto a +12volts system. - Seen it plenty ...

DON'T EVER DO THAT AGAIN!!... IF THE BATTERIES ARE NO GOOD... REPLACE THEM!.

If they are that dead.. then let them charge up properly instead of being impatient. If they refuse to take a charge after an hour, ...like said above ... replace them. They are only going to put someone stranded on the side of the road with an expensive towing bill (or standing in a parking lot with a pair of jumper cables in their hands) at some point.

And if a truck is going to sot for weeks, then disconnect the batteries and put a decent quality/size solar charger on them.
ref: https://amzn.to/4biN15h