A follow up note regarding Energizer Alkaline cells. If you use the cells within a year or two, and the temperatures are moderate, you will have little problem with the Energizer Alkaline cells. For long term use, or storage for emergencies, I have found approximately 40% to leak. Thus for longer term uses, I now rely on Duracells.

One must always remember that there is a lot of energy in a battery cell. Use what you need, but realize the risk. Don't use a high rate cell such as a CR123 unless you need the high rate capability. I want a flashlight to last many hours, more than 10h on a set of batteries, so a lower rate (and therefore safer) cell works great. Thus I tend to use a lot of alkaline cells, rechargeable NiMHx, and Li button cells.

Spud