I have an e-bike that was manufactured by a start-up that folded. I cannot get replacement batteries and mine are deteriorating. I would like to find a company that rebuilds lithium batteries or find someone with experience substituting other batteries. If anyone has a lead, please share it. I tried Batteries Plus but they don't rebuild lithium batteries. The battery kits I've seen online look easy, but the wiring is a question. I would like to find someone who can connect the wiring properly. Thanks for anything you can tell me. The bike is a Freway VR-01 with a 36v lithium battery.