This is very important - the Conhis Motor parts work, but the connectors are sometimes wrong. Namely the red and black power wires coming from the motor kits. A number of people, including myself, have connected everything properly only to experience the frustration of watching it catch fire.
The battery will typically survive this if you disconnect very quickly - a good sign about the durability of the LiFePO4 batteries. Unfortunately you will have to inspect the motor controller and BMS for melts, breaks, and numerous other failures. I was lucky with the Motor Controller, only a bit of blackening on the inside (around the black wire - hard to see). The BMS needs a new three-prong socket because of melting on the inside, but that can come from any old computer power source or guitar amplifier - until then I'll be using the direct leads.
"If you got it to work again, why is this a problem?" - Sir or Madam, I am glad to hear you like to solder, shave, and bust open your equipment. I don't. In fact as a Kit with connectors already built on most people would presume the plus goes to plus and line to line, but when the reversal is built in to the plug it is unseen until it is too late. A real Red plus to Black plus scenario, more commonly known as a short. No fuses, no failsafes - just fire, melting, and disappointment.
Next time I'll just buy something from Canada, at least then everything is UL tested and adheres to standards. A set of standards that I now appreciate much more. I've read about the same thing happening to both Conhismotors and Golden Motors - check your wire colours. Pics to come.
If you do like to tinker and double-check connectors I'd recommend trying a Conhis Motor from http://www.conhismotor.com - also don't forget to securely and properly tighten your wheel nuts - that was the second mistake I made on the first test run and my pain is a reminder the world isn't "No manual, No problem".