9. Recharging: Please unscrew the switch cap and plug in USB cable; In charging: the LED indicator is Red; Full: the LED indicator is green
10. Tips: please recharge or replace the battery when the light starts to flash(except normal Strobe/ Beacon). Please make sure that USB cable matching USB port in right direction and remove USB cable timely when it finishes charging. please unscrew the tail cap half a circle to keep the battery from draining when not in use.