FYI, you can get CR123 batteries for $1 each at batteryjunction.com . Plus you can order them in pairs(or triples) shrink wraped as a stack, to make organization and reloading quicker.
I have no experience with these batteries, but do note that they are made in China. See:
www.equipped.org/blog/?p=42 Are these better? Maybe, but given the potential issues, I'll stick with U.S. or Japanese brand name lithiums myself.
From the batteryjunction.com website:
"Every Titanium CR123A battery incorporates PTC protection and the PTC threshold is set at 5AMPS. The protected Titanium CR123A batteries prevent excessive discharge that can damage lithium cells and may lead to catastrophic incidents."
"The double and triple sets of CR123A batteries are produced in the same production lot and the internal resistance of the batteries is matched. The double and triple Titanium CR123A battery sets will prevent new and old batteries from being mixed up and used in the same device"
"The Titanium CR123A 3V non-rechargeable lithium battery is one the most popular, widely used and tested, CR123A lithium batteries on the market."
"Independent tests have shown Titanium CR123A batteries excel in higher drain devices and often outperform the 'big name' cells in those types of devices."
I suppose they could be lying, but otherwise these batteries seem like they've been pretty well tested, and the matched sets seem to add a measure of safety. The website has runtime charts and detailed specs on the batteries also. These batteries were also reccomended at
flashlightreviews.com.
In any case I personally would not spend significantly more money on brand name batteries because of an extremely unlikely scenario, which may be just as likely with the more expensive ones. However it is good to know about this potential issue, and I'll be on the lookout for unusual flashlight behavior.
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