No more annoying battery rattles when using these batteries on 3 x 18350 flashlight or 18650 flashlights that has the 1 cell 18350 extender. This Delrin Battery Adapter Sleeve will allow you to install CR123, 16340 or 16650 sized batteries into 3 x 18350 flashlight bodies.

This Delrin Battery Adapter Sleeve will allow you to install CR123, 16340 or 16650 sized batteries into 18650 flashlight bodies. No more annoying battery rattles when using CR123, 16340 or 16650 batteries on 18650 flashlights.