https://stream.echo6.co/videos/watch/234b91b5-3990-471d-881b-fe5c4bb507b8 I get the feeling this is probably a mass clone of a popular design. It's available from different suppliers with a slightly different appearance. The design uses a cluster of very common 4056 charge control chips in parallel to give higher charging current. The keywords for finding this module are TP4056 3A - cost is around 4£$€. Double check your jack connectors connections before soldering it on, as the PCB is deigned to take various styles, and it's possible to put the pins in the wrong holes. The module does have polarity protection. If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:- http://www.bigclive.com/coffee.htm This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty. #ElectronicsCreators Mon, 13 Apr 2026 11:50:24 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/234b91b5-3990-471d-881b-fe5c4bb507b8 All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.