Anyone have experience of DTBattery.com / Ding Tai battery, direct or via Aliexpress?
http://www.dtbattery.com
http://www.aliexpress.com/item/36V-13-6Ah-down-tube-battery-Li-ion-ebike-battery-with-5V-USB-output-for-electric/32674427868.html?spm=2114.13010208.99999999.283.thWON7
thanks,