I purchased a SOG single cell tactical flashlight. I played with it for two weeks. When the light dimmed I replaced the SOG 123A branded battery with an INOVA branded battery.. Still playing with it, now on three weeks. No sign of it getting tired. I purchased a 6 pack of batteries so I have 5 left to get me through hurricane season?
Pros: Long Lasting
Cons: Expensive
This review was written in the old system and had content requirements that are different than reviews written today.