"SRAM batteries are literally a snap to remove and charge. Just flip the tool-free battery latch up and slide the battery up and out of the derailleur. Then snap the battery into the Micro-USB powered charger (Micro USB cable included) and connect the charger to any USB power source or A/C USB adaptor. A full charge takes up to 60 minutes to complete.
 
Note: This is not a USB-C charger, this version is Micro-USB."
 
- SRAM