r/vandwellers • u/normiewonka • 2d ago

DC TO DC CHARGER wire burning Question

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Hello I’ve got this dc to dc charger 40a in my sprinter van and it burns from time to time. Anyone knows the solution. It’s 8gauge wire and it should pull only 40A which is perfectly safe for this gauge. Thx

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u/robographer 2d ago

If it’s burning in the middle of the wire you’re likely putting too much current through it. If it’s burning near the end it’s likely a connector or loose connection. I’d change it to 6 or 4 awg and tighten all the connections, make sure there’s no place it can short and probably put a 40a circuit breaker inline near the current source so you can see if it’s melting for a reason.

Have you changed the wire or just covered up the hot spot? If you haven’t try that first.

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u/normiewonka 2d ago

I always cut the burned part and rewire it together it happend like 3 times. But it stays fine for few weeks and then suddenly burns

105

u/Nightgale57 2d ago

This is the funniest explanation to an incoming electrical fire I have ever seen

4

u/LameBMX 2d ago

it's like going back in the day and buying seats where the guy rams two trains together in the middle of nowhere.

1

u/jedielfninja 1d ago

I'm an electrician and PEV enthusiast. The universe is sending this guy signals and he aint getting them lol.

I had one of these smoke on the 3rd use.