Thanks for the killer tips : ) I've had a XB-310Li for a little over a year. Been riding it on stock battery and stock controller. Finally decided to upgrade. Getting the 36volt Li-Ion. I'm in touch with Annie Lei who's trying to direct me to the BMSBattery website, and I'm trying to get her to take my order via skype : ) Also sent an email to Keyvan/ecrazyman to see if he'll sell me a controller. I'm going to try to run the 36volt on the stock controller for a while - see how it goes etc, and hopefully have upgraded controller as a spare/backup.
I already burnt out one controller, just after the puny 90 day warranty expired
For some reason I decided to run the throttle and pedal assist modes at the same time. The bike didn't like it : )
Other than that, man I kind of dig this bike... even on the stock parts. I've gone through crazy downpours without a hitch (must've lucked out, that controller casing is asking for trouble), and even got swiped by a car once (it must've been going 30, I was going 18 or something). NO DAMAGE to the bike. Miraculous. The motor didn't want to run right after the accident, but then started up fine that same evening (weird). I was OK btw - just scrapes mostly. I think the weight of the bike helped in absorbing a lot of the energy.
(Dumb city with no bike lanes.)
Anyhows, IMHO this bike is a weird mix of cheapness and quality, that somehow works good, pretty much : )
I have 3 Arkel bags on it (4 counting the tool bag), and it's completely replaced my car. I'll shoot a pic sometime : )
Ride safe, enjoy, and I'll let you guys know about my upgrades.