How Can I Change 18350 Lithium-Ion Battery?

To remove the battery, open the upper lid and unlatch the battery door compartment. Replace the
battery with the 'button' side down and the 'smooth' side up. For securing & best connectivity purposes,
the battery latch may require some strength to fully close.
Helpful Tip: Use the included Pick-Tool to help simultaneously pull back the latch and close the battery
tab at the same time.