My

aaa

$1,200-1,500 a unit for 20 units, I'd say you got it at less than half what the guy paid for it. How are the batteries holding up? Interesting looking cell. http://www.makepolo.com/products/12V-20Ah-electric-bicycle-Lithium-ion-p40907712.html

Looks like a nice little package, 2,000w is useful enough on the power. Range over 30m/50km.