Question: I have cigarette lighter output on my motorbike and also a head set device. The headset device runs off 2 AAA batteries with no way of connecting power any other way. I am able to power my tom tom through usb from the cigarette lighter however I would like to power my head set the same way, is there anyway I could connect wires from a usb output to the headset, would this automatically set the correct voltage/ Amps (my electronic knowledge is minimal). I have noticed that you can buy usb to AAA chargers. If I soldered the wires to go from the charging bit to the head set would that work or does it use low amps to charge... I don’t know. Anyway hope that makes sense.
Cheers
Dave