Yes, I have several of them. I'm trying to see if I have any runtime data on the flashlight, but I'm not finding any. I like to know how long a flashlight runs. Whether it just quits abruptly when the batteries get too low, or just starts slowing getting dimmer. Also how long after it starts getting dimmer until the light output is not usuable any more. I do these type of tests with alkaline, lithium, and NMH batteries. In a long drawn out situation, it seems the alkies outlast the others by a good margin in a battery vampire flashlight.