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      10-19-2020, 05:35 PM   #1345
cannyjock
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Drives: BMW e90 M3
Join Date: Nov 2019
Location: London

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Quote:
Originally Posted by Cyberdemon View Post
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
True, I think I'll give it a go.