2012

I have a 2012 Stromer ST1, I assembled a new 36v 22A / h battery, 10S5P configuration, from 21700 batteries, 50 pieces fit, 21700 batteries are more reliable and stable, I modeled and printed the details on a 3D printer, plus I have a native battery 36v 14.5A / h, 12A/h remains in it after 10...