I would think that running down then charging is a good thing. Kind of like a battery tender or autatic charger. That keeps them from boiling from constant charging. If you want to be sure they are "topped off" before a trip I would put aanual charger on a low amp setting the night before.
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R.J. and Ginger
2019 Ram 3500 6.7 HO, Aisin Trans 3:73
Reese Goosebox
2019 Sandpiper 379FLOK
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