Battery Draining Down After 12Volt Conversion

KCTractors · Oct 17, 2014

Converted a MH 30 to 12volt. It starts good and charges good, but in a couple of days, it draws the battery down. Both wires going back to the alternator are hot to touch. Where should one start looking. I wired a least a dozen of these systems with no problem!

David G · Oct 17, 2014

Can you post how you hooked it up?

Is the battery hooked up with negative ground?

2tractors · Oct 18, 2014

Easiest way to find problem is with everything off disconnect + side of battery and check for an arc when you touch it back, then start breaking connections till it goes away. Gas or diesel??

Inno · Oct 18, 2014

1 wire or 3 wire alt?
You may have to put a diode in one of the lines...........can't remember what I did when I put mine on.
This http://bob_skelly.home.comcast.net/~bob_skelly/alternator_conversion/wiring_alternator1.html is about the best tutorial I've seen.

rustred · Oct 18, 2014

you need a diode or idiot light in the circuit so you don't have batt. voltage to the alt. when engine is shut down. that's why batt. going dead and wires hot.

Battery Draining Down After 12Volt Conversion

KCTractors

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David G

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2tractors

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Inno

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rustred

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