Not sure what type of batteries you should use? Then go with the Coast HX5 Flashlight, which is compatible with not just standard alkaline AA, but with rechargeable NiMH or rechargeable Lithium 14500's as well (NiMH & Lithium not included).
- With the Lithium 14500 cells, the lumen output jumps nearly 3 times as bright as with the alkaline battery
- 2-way clip makes it easy to clip in either direction on your pockets or even the bill of your hat
- Pure Beam Focusing System with Slide Focus - light can easily transition from flood to spot modes with one hand