[Jay Kickliter] built his own coin cell battery ... which use AA or AAA have NiMH rechargeables in them and have used the same pair for year and years. So we’re happy to see this charger project ...

Charge 1 or 2 batteries at the same time Compatible Batteries 10440 14500 16340 18650 21700 26650 Ni-MH / NiCd: AA, AAA and C Multiple ... EdisonBright BBX5 battery carry case ...

Hit your parts bin and set aside an afternoon to build a wind turbine that recharges batteries. You can see two AA batteries hanging ... a dedicated storage battery and the on-board battery ...

Or a portable car battery jumper. What can we say? Batteries are the exact thing you always need the moment you can’t find ...

Choose a charger that can accommodate the number of batteries you typically use, whether it's AA, AAA, C, D, or 9V, based on your specific needs. Compatibility: Ensure that the battery charger is ...