Bests & Worsts Reviews from Amazon

I have had years of professional experience in testing batteries, from aerospace to hearing aid batteries. I know how to test batteries & I have the equipment. I tested these based on the standard slow 20 hour discharge rate, not a high rate which makes the batteries look even worse. This battery company is basically running something like a scam. I bought a total of 6 of these at 2 different times. My tests show that on average, they don't even measure up to a 1/3 of the 3000 mAh level claimed by UltraFire. One went totally dead after using only once. Furthermore, they only have about the same power level as found in a triple pack of AAA batteries. Therefore, buying these batteries makes no sense at all. Save yourself time & trouble & stay with lights that use the triple pack of AAA batteries. Keep it simple......