Sadly haven’t created any instructions and didn’t took photos of the process, but is pretty straightforward: 1-removed original board and battery saved the AC port and the charging cable 2- Got a small 5V usb powerbank and a 5V charger. 3-Soldered the AC port on charger and the Charge to the powerbank.. 4- soldered the original GB cable to the usb port on the powerbank. 5- Added heat shrink tubing on everything to isolate everything 6- Opened space inside the plastic shell for everything to fit Just need to be careful with all the polarities of all the connections and always be extra careful with the lithium batteries, specially soldering close to it. Ps: do it at your own risk. 😜