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just fitted a new battery in my plane , 914, and noticed after fitting the positive that when I touched the negative it produced a small spark , everything turned off, where would I be loosing current.

 

 

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From the one thing that is not off. Do you have a multimeter handy & know how to use it?

 

 

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just fitted a new battery in my plane , 914, and noticed after fitting the positive that when I touched the negative it produced a small spark , everything turned off, where would I be loosing current.

Maybe Clock ( if fitted) or charge current for electrolytic noise suppression capacitor ( if fitted) ??

 

 

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Happens with cars mate, First connection with a new battery the customer thinks that they have a drain and that you should find it for them for free (they only came in for a new battery), With an inline ammeter you can see the spike in the initial connection - then watch it plateau out.

 

Cheers

 

 

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