My SF C2 with stock P60 module was originally working with the SF batts... Until i popped a set of freshly charged 3.0V RCR123 into it. It flashed for a split second before going dead. So question here is... Where did it go wrong? 
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P60 fried?
- Thread starter nilfire77
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Those 3.0 RCR's are not 3.0 volts hot off the charger. You can use regular RCR 123's with a P90 lamp module.
Just as I suspected.. Thanks for the confirmation..
RobertM
Flashlight Enthusiast
Just for your knowledge...CR123 cells in your SureFire sag to around 2.5v under load.
HotWire
Flashlight Enthusiast
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- Mar 9, 2011
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I <<POOFED>> my very first P60 in exactly the same way. Some companies advertise them as replacements for CR123 cells--but they are not! You can find a Lumens Factory bulb that will work with your rechargeable batteries.
Illum
Flashaholic
P60s can be had on CPFM for less than $10 if you shop around. I'm thinking of getting more P60s as time goes because people have been taking them out and putting in "P60" drop-ins. They are actually designed to operate at 5.5V and function very well at 5V, draws about 1.1A. Makes a pretty nice work light connected to an Iomega switcher, when it goes 
well... another $10 puts it back in its place. For lamps with equivalent outputs, the prices on cpfm are hard to beat
well... another $10 puts it back in its place. For lamps with equivalent outputs, the prices on cpfm are hard to beat
tyrantrave
Newly Enlightened
What are est. volts that a charged RCR123 puts out?
Illum
Flashaholic
4.1 off the charger, 3.7 under load, 3 when depleted
The only rechargeable system for P60 is 4 Eneloops (NiMH). However, this will poof P61
tolkaze
Enlightened
RCR123's are anywhere up to 4.2v off the charger as mentioned, but the 3v RCR's are about 3.2 hot off the charger, and may have less sag than the primaries, so could be 2.8 under load or more
