Here is the inside of the focus jam2 battery , may be of interest to some people. Some corrosion starting in the last picture. | EMTB Forums
2017 Focus JAM² & BOLD² Electric Mountain Bikes & Extra Battery Option [VIDEO] | Electric Bike Report | Electric Bike, Ebikes, Electric Bicycles, E Bike, Reviews
Long Range Electric Bikes from Focus | Dual Battery Pack Option Totaling a Huge 756Wh!
Focus JAM² Plus Pro Review | ElectricBikeReview.com