Quote:
Originally Posted by rayxi
I can say for sure that it works on my E46 as I have recharged a dead key that way. It may not work on other models like the E53 however. I don't have my E53 anymore so I can't test it.
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Yup, I have charged the key on position 0 many times as well on E46. I have three keys and don’t drive the M3 much so I let the keys charge in the ignition. However, I noticed that you need to switch to position 1 or 2 first and then back to 0 and leave the key in for it to charge. If you just insert the key and leave it in position 0, key does not charge. I let it charge for several days and the keys are good to go.
I have also tried with Qi charging pad and the key does not charge. I guess the key doesn’t meet Qi standards. All of my charging pads have charging LED indicator when Qi receiver (my phone) is placed on top to notify you that the device is charging. Placing the key on the pad doesn’t do this. Tried many different placement on the pad and the key still does not charge.
Here is a link with the toothbrush changer and this guy in the video was successful in charging the BMW keys. Video shows Philips Sonicare rechargeable toothbrush base. Maybe I’ll pick one of these up and try it out. But currently, all of my keys are charged and working…
https://www.youtube.com/watch?v=kC68Z7CP2XM