Quote:
Originally Posted by cannyjock
Having a quick read up it looks like the ones with a battery (like this) shouldn't be used on permanent charge - I'm looking for one that can run of USB safely, I'll report back if I find one.
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It'll probably wear the battery down rather quickly, but might be cheap enough just to prove the concept or not. I don't see why it would be a problem since it wouldn't charge when the car is off.
This might do the trick, seems there are a ton of these:
https://www.amazon.com/dp/B01EUFQAQS..._2fGJFbTGN6SW5
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