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Thread: Hella Battery Disconnect Won't Disconnect

  1. #1
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    Question Hella Battery Disconnect Won't Disconnect

    I got a 100 Amp Hella battery disconnect with my kit. I mounted it on the back panel, in a glove box between the seats. Went to test it with the multi meter, and their is continuity whether I switch it on or off. Almost as if there is a short. Has anyone else had this issue?

  2. #2
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    I have not personally, and I'm by no means an expert (so take this comment with a grain of salt) but I do know those switches are spring loaded, did you try giving it a little "whack" against a work bench to free it up in case the element is just jammed in there funny? Only other solution I could think is that you over-loaded it once and possibly fused something together. Not sure if you run the starter motor through that switch or not.
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  3. #3
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    Is it mounted in the car with wires connected? If so, is it possible the wire terminations are touching each other? Otherwise, like BrewCityCobra said, activate / whack gently it a few times.
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  4. #4
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    I figured it out. I believe the plastic housing is not rigid enough. When I tightened down the mounting bolts, it distorted the casing just enough that the switch would not disengage in the off position. I backed-off the lock nuts a bit until the continuity meter would stop sounding when the switch was in the off position. I then applied some blue locktite and hand-tightened the locknuts. It appears to be working now, but I'll have to keep an eye on it after a few hours of road use.

    So, lesson learned: if you're using a Hella brand disconnect, don't overtighten the mounting bolts, and double-check the functionality of the switch.

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