Batteries for Surefire
 

I just noticed some rechargeable CR123 batteries on ehobby. There are two of them, a 3V one and a 3.6V one:

http://cgi.ebay.com/UltraFire-3V-CR1...QQcmdZViewItem
http://cgi.ebay.com/UltraFire-3-6V-C...QQcmdZViewItem

Now, a regular CR123A has anywhere from 1300 to 1600 mAh. These have 800 and 880, so probably only last half as long. The big question though, I have a P91 lamp in my G2/9P amalgam, and was wondering how the lamp would react to the higher voltage from the 3.6V batteries. The 3.6V rechargeables are both cheaper and higher capacity than the 3V one, so if it won't burn my lamp, I'd definitely take those instead.

Both of those cells are unprotect, meaning they can easily (and if one use an UF-brand charger, definitely) over charge. I tried using the 3v one and it murdered 2 Xenon (clone, not SF) lamp assembly, putting each cell at significantly over 3v when charged by a UF charger. I ended up getting a regulated LED lamp assembly so I didn't have to throw away several batteries.

I think there's a more detailed writeup about UF cells and charger over at http://www.candlepowerforums.com/vb/

Ouch. Thanks for the quick response.

If you are using cells with a Protection Circuit Board they tend to be 2-3 mm thicker than normal so you might have trouble screwing your tailcap back on of course this depends on model.