I have 2 battery chargers, but none supports 9V (in real 8.4V). To buy another charger seems like a waste of money. So I would like to charge 9V with help of wallwart and some wires.
The question is how to charge it. Should I just hook up the 9V wallwart and a couple of resistors? Is more intricate microcontroller circuit required to "smart" charge this 9V battery?
Help me get started.
Thanks.
The question is how to charge it. Should I just hook up the 9V wallwart and a couple of resistors? Is more intricate microcontroller circuit required to "smart" charge this 9V battery?
Help me get started.
Thanks.