3000 Watt Electric scooter, lithium ion LiFePO4 battery
This scooter comes with an individual cell charger, which some people refer to as a battery management system (BMS). Also known as a bank charger.
Max speed: 50 mph
Max range: 40 miles at 40 mph, 30 miles at 45 mph, 20 miles at top speed.
Batteries: 40ah, 60V, 19 cells
Battery specification at: http://www.thunder-sky.com/pdf/TS-LFP40.pdf
Brakes: Front and rear disc
Weight: 286 lbs (approximately)
LxWxH: 6.6'x1.64'x3.9'
Warranty: 6 months for defective parts.
Allow 8 weeks for delivery. Payment terms are up front.
You will be receiving one of the first of these BMS.
Satisfaction guarantee: If you are not satisfied with in the first two weeks of receiving the scooter, we can arrange for terms for a refund. For example you can sell the bike and get a refund on the difference.
It is recommended that after a few months of use you begin to monitor the batteries closely and make sure they are equalized.
Some public forums you might find useful:
http://www.evdl.org/
http://endless-sphere.com/forums/viewforum.php?f=10
http://www.modifiedelectricscooters.com/forum/