oops...

Yes, your detector is toasted, literally. Whites might be able to fix it, but youll have to contact them and find if they think its repairable.
 

I believe you destroyed the internal voltage regulator. :BangHead:
 

PoE is correct, there is a linear reg that runs everything. A reverse voltage on it will cook it. U1, LP2951.
 

Does not sound good. I'm surprised they built a battery pack that can be installed wrong. Most everything is keyed today, for proper install. Sorry for the bum luck.
 

I don't think you can insert the pack backwards, but you can probably put the batteries into the pack backwards. I put reverse protection on all my circuits even if reversal is physically impossible. Someone, somewhere, will figure out how to do it.
 

I don't think you can insert the pack backwards, but you can probably put the batteries into the pack backwards. I put reverse protection on all my circuits even if reversal is physically impossible. Someone, somewhere, will figure out how to do it.

You mean someone who could ruin a steal anvil with a rubber mallet? :laughing7:
 

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