Forum Discussion
DrewE
Oct 03, 2016Explorer II
Most commonly house batteries would charge with the disconnect switch off.
Chassis batteries typically will charge only if there is some system to charge them from the converter output, such as a BIRD (bidirectional isolator). Most commonly from the factory they would not charge, at least for units on the lower end of things. Having the disconnect switch(s) on often would not affect this.
A good and not too expensive solution to keep the chassis batteries charged is to install a Trik-L-Start or its big brother Amp-L-Start. This is basically a DC powered float/trickle charger for the chassis batteries that operates when the coach battery is being charged (that is, when the voltage is over something around 13 volts).
(If you have solar power you can use when storing your RV, why bother turning the battery disconnect switches off?)
Chassis batteries typically will charge only if there is some system to charge them from the converter output, such as a BIRD (bidirectional isolator). Most commonly from the factory they would not charge, at least for units on the lower end of things. Having the disconnect switch(s) on often would not affect this.
A good and not too expensive solution to keep the chassis batteries charged is to install a Trik-L-Start or its big brother Amp-L-Start. This is basically a DC powered float/trickle charger for the chassis batteries that operates when the coach battery is being charged (that is, when the voltage is over something around 13 volts).
(If you have solar power you can use when storing your RV, why bother turning the battery disconnect switches off?)
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