GK GK21S ABS Wireless Mechanical Numpad Kit

If put on cable mode, it doesn't charge. If put in BT, it charges slowly, way, way slow. Maybe because it has all these LEDs on, consuming all energy. But turn them off and you lose the battery charging indicator and, it seems, the charging too. After full-charge (eons later) you turn it off and if you turn it on a week later, it has low-battery again. Seems the scan routine responsible to detect the turn-on combo consumes a lot of battery. I ended up installing a real power switch. It made the battery last longer. Like 2 days longer. Can't wait to gut it and use only the case, the plate and the battery with my own board.

Same exact experience, does it just charge over USB? Never really sure what mode it's in, nor is the configuration via function key intuitive. I regret this purchase.

Thanks. Mine came with a printed copy of that. What I meant is I'd like the configuration software had any instructions. Most people say it's like QMK but having no experience with QMK, I must admit I was lost. The software has no help and is a bit confusing. Lots of trial and error to make it do what I want it to do. Also, the fixed resolution of the app made it difficult in a 720p screen as it was clipped at the bottom and some messages did not display until I added a second monitor.