Rechargeable hearing aids and dirty jobs

Here’s a tip someone sent in to me. Pretty good idea to keep debris out of the charger… Other suggestion would be to just carefully clean your aids every night before putting them in the charger.

(I assume when he says “on aid’s batteries” he means on the battery contacts?)

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I’m actually worried for this guy shorting out the rechargable contacts and having the Li-iON batteries catch fire or explode. If they are CIC that would be brutal. Or while they are charging and he’s sleeping…

Good tip nonetheless.

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Hey thanks for the response. Can you please explain what you think the exact concern is? I’ll share it back with him.

I don’t think this is a problem. I just measured the voltage at the pins, there is none in both directions.
I’m pretty shure there is a diode to protect agains short and charging with wrong polarity.
But this might be different with different models.

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@sterei Seems to know more about electronics so I would defer to their answer, but my assumption was that they might accidentally short out the internal rechargeable batteries if those fine metal filaments/powder ever made a bridge between the +/- contacts (IE; either from some glue that might remain behind after the tape is removed, or getting stuck to the tape itself if he reuses it).

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