Anybody try The new Lithium ion or lithium polymer that are just coming out?

[Reverend B*IKE*]

Any feed back Price or source for buying?

[TheRandyMan]

I have been using the Lithium Ion AAs in my Etrac. Since they are a bit hot on voltage at the start, it takes about 10 or 15 attempts to get the machine to fire up. After they have about 20 hours on them, they usually start the machine up right away as the initial voltage is not too high at that point. I have not worn them out yet, have over 40 hours on them. Will be interesting to see how long they last. Most likely will blow the alkalines away pretty badly.

[Frankn]

You can get them at Best Buy. Get the ones with the charger. Do not try to charge them with any other charger. I use a drill with LiO batts. They seam to stay charged forever when not in use. These batteries are constantly being improved due to the advent of the electric car. A third version is in the works right now.
Most good metal detectors have a built in voltage regulator that will adjest the voltage from any AA to the voltage required by the detector. If the voltage in the battery drops to low the detector will try to pull to much current to make up the power difference, this will trigger a shutdown of your detector.

[sniffer]

while lithiums worked great in my DFX, the ETRAC won't except them. and I'm not willing to fry my Etrac and void the warranty by pressing my luck
I still get around 30 hours with duracells

[Frankn]

I guess some brands pay better attention to their voltage regulators. Buy the was, voltage regulator chips are cheap! Kind of makes you wonder. Has anyone ever written to the manufacter and inquired about this problem?