One of the wires from the battery was disconnected ... as I'd expect the capacity of even a cheap 18650 cell to be about 2,300 mAh. This means the entire pack had a capacity of 6,000 mAh, a ...

Laboratory Technical Project Manager Gianmarco Chumbe has been part of the CNET Home team since 2018. He is in charge of developing and carrying out testing procedures for a wide variety of home ...

Grid energy storage is one of the hottest areas of research and engineering today. It's all about cheap, sustainable, and ...

Nerd Ralph loves cheap and dirty hacks, and for that we applaud him. His latest endeavor is a LiFePO4 battery charger that he made out of parts he had on hand for under $0.50 US. (Although we ...

a tiny battery, and the video isn’t that great. It only costs eight dollars, though, so [pixelk] decided to vastly expand the abilities of this cheap camera for a Hackaday Prize entry.