I have an eZip Mountain trails bike in blue, as well as upgrades to go with it. A side from the stock parts on it, the upgrades include-
Custom Wiring to connect to the 24v 20Ah LiFePO4 battery. Specs for the battery can be found here http://cgi.ebay.com/24V-20AH-LiFePO4...QQcmdZViewItem
as for what i have done to the bike, video can be found here
it consists of 2 videos. I actually ended up using the connector show in part 1 apposed to the connector in part 2.
The stock battery can get you about 3-4 miles. Thew new one can get my 8-12 miles. The battery also comes with the 3 amp charger. takes about 5 hours to charge 100%. There is only 1 draw back to the new battery- you have to manually get up to a decent speed before engaging the motor or else the bike will turn off (it has something to do with protecting the battery) nothing big. The bike is in excellent condition. I would keep it, but i need money. How much do you think i can sell it for (bike + new and old battery + new and old battery charger) ?