How to Charge JBL Xtreme 2

How to charge the JBL Xtreme 2? This is basically the exact same method as the JBL Xtreme 1. The only difference is a waterproof door on the Xtreme2 compared to a splash-proof zipper on the Xtreme1 Power supplies or chargers have the same electrical connectors and power stats. I do think that it is possible to charge the Xtreme2 with the Xtreme2 charger as well as with the Xtreme1 charger.