Weird Olight 2.4v c charging battery is useful for Malkoff aa lights as well as M31 drop ins. Gene said it was safe and it bumps moonlight mode to about 1 lumen. Have an xpg, xpg2, and sst20 aa mdc and the moonlight modes are all different. Choosing 1.2, 1.5, 2.4 v batteries lets you adjust it a...