charge line between house batteries and chassis battery

Question

When I am plugged into shore power my house batteries charge but not my chassis battery. Can I run a charge line from the house batteries to the
chassis battery with a diode in line to prevent discharge of chassis battery when using house batteries?

rjsfishin · Answer

Yes, you can, but instead of a diode that will cause voltage drop, I put an off/on switch in line

dalehelman wrote:
When I am plugged into shore power my house batteries charge but not my chassis battery. Can I run a charge line from the house batteries to the
chassis battery with a diode in line to prevent discharge of chassis battery when using house batteries?

accsys · Answer

Check out the Amp-L-Start or it's lesser amperage Trik-L-Start brother for an easy, tried and true, foolproof way of doing what you are considering.

mchero · Answer

I used the Trick-L-Start on my rig. had it plugged in all winter &amp; kept the chassis bats. up w/o issue.

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charge line between house batteries and chassis battery

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