I stuck my extra Energizer Lithium batteries I had for my camera in my beacon last week when I was up in the ravine. I know that these kind of batteries are not recomended for some uses, does anybody know if they are ok to use in my beacon?
In addition, it's generally not recommended for most beacons (unless the instructions specifically state otherwise) because the lithium batteries have a sharp voltage cutoff as they grow dead, instead of a steady decline, and the battery meters aren't designed for this. suddenly your beacon goes dead without warning.
What Yuckster said... I've had catastrophic failure with lithiums in a beacon... it overheated and cooked the F%$#^r! Use Duracells alkalines... I find those to have the longest life in the cold without serious deteriorisation. Energisers are OK but don't seem to hold well against the cold. BUT remember, the beacon is supposed to be close to the body.
Avoid lithiums! Except for digicams and other nonlife saving devices.
They seem to be good for flash applications. I beleive they have a very low internal resistance. This seems to be a problem for other devices, transceivers, xenon bulbs in flashlights, probably some others. Good quality alkalines are the way to go.
Rules and regulations:
1. Don't piss off the locals