First live test of the car's dual battery switch! It works! The backup battery is getting charged when the engine is running as long as the primary is full.

Unanswered questions at this point are how best to switch between solar and alternator charging, and whether the battery box will ever leave the car.

For the first part, right now it's just going to be yanking the plug out of the battery feed and swapping in the panel. Simple and probably effective enough but I'd kinda like a big solar on/off switch somewhere. Maybe.

Everything is simpler if the battery stays in the car but maybe it's too inflexible. I'm about 50/50 on this issue.

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@mike

> how best to switch between solar and alternator charging

big knife switch. like the one traditionally used to allow the lightning down to Frankenstein's monster.

@Nikolai_Kingsley @mike nice, I’ll see that and raise you two key triggers that have to be turned by two people at the same time

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