Hi Guys,
I'm very new to working with electronics but figured this was a good place to start!
I have a device that is currently powered by 2x Maxwell SR1120W Batteries (http://www.batteriesinaflash.com/maxell-silver-oxide-watch-battery-sr1120w-high-drain-replaces-391). I want to replace these batteries with some kind of USB rechargeable cell - seeing as I have the specs of the Maxwell units, I wanted to find out if it would be as straight forward as just pulling these out, and wiring in a different kind of cell - I have zero idea how the recharge side of batteries work (would I need additional parts to indicate when the cell was fully charged, etc?).
I appreciate how stupid this question must sound but if anyone has any advice or could point me in a good direction to start with, that would be greatly appreciated.
