[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 ...

With this battery combo you’ll get four HiQuick AA batteries and four AAA batteries, as well as a wall charger that’s capable of charging both sizes. The charger has fast-charging capabilities ...

Batteries remain an essential part of using many devices. We've got all the best Black Friday battery deals lined up here.