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Jim_VA
Explorer
Aug 21, 2023

Charge dead truck battery (LA) from house battery (LiFePO4)

Recently I was in a very remote area when my "check guages" light came on indicating the alternator wasn't charging. It eventually came back on (could be a bad ground?). I had a similar situation last year in central Idaho but in that case my alternator actually did die -- fortunately 5 miles before the only town for many miles and with an hour of daylight left. It got me to thinking about options should the truck batteries ever drain down. My house battery is a 200aH LiFePO4. I've been looking to the internet for answers but so far nothing related to this type of situation comes up. How could I safely recharge my truck batteries enough to get me back to civilization? Any thoughts?

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