How To Charge Non Removable Battery Without Charger. Problem can be fixed easily it will just take a few minutes. You need to disassemble the battery you will have a wire going to a socket from that battery.

Get the battery off the damn bike. If its a pin type then you can plug two thin wires carefully into ve and -ve terminal of that socket and plug that into terminals of li-on battery charger terminals ve and -ve. Watch - How to fix plugged in not charging windows 810 non removable battery.
Any charging cable.
You can even use a Lightning cable to charge an Android or a Micro-USB to charge an iPhone. Either try your cord in another device or try another devices cord in your laptop. You can even use a Lightning cable to charge an Android or a Micro-USB to charge an iPhone. Double-click on the Batteries section to expand it.
