Check Out This AA Powerhouse
Rev 4 Changes :
Using A Single Duracell AA battery we got the following results:
A Note From The Legal Department: We do not recommend the use of 14500 Rechargeable batteries with this flashlight unless its an Eneloop Cell. It is designed to use off the shelf alkaline, lithium, NiMH or Nicad AA batteries. We do not recommend use of higher voltage batteries. Any attempt to modify these lights will void the warranty. We know when you try to remove the Pill.