AR15.Com Archives
 Rechargeable 123s
beavo451  [Team Member]
4/19/2012 9:08:17 AM
Those of y'all wanting rechargeable 123s, Surefire offers a LiFePO4 kit now.

There are many manufacturers of rechargeable 123s and without lots of research, you can get yourself hurt pretty easily. The SF kit seems like a good solution for those that do not want to spend the time and resources on research.
The_Hammer  [Team Member]
4/19/2012 9:28:54 AM
I was wondering if they were ever going to offer something like this, too bad the runtime is half of what it is using primaries. I wish you could fit an 18650 in their lights without having to buy an aftermarket body.
TCBA_Joe  [Team Member]
4/19/2012 10:14:21 AM
I wonder how well they deal with recoil?
txgp17  [Team Member]
4/19/2012 11:20:59 AM
For my weapon lights, I won't use anything but high quality primaries.

For my other lights, I have AW protected Li-ion batteries. But I have to admit, $29 from Surefire for that is a pretty modest price.

I wonder what would happen if you put three of those in a G3 LED? I have an old Surefire KL2 head, using a cell extender, I put it on an M3 and put four rechargeable Li-ion's in it, which was pushing 16 or more volts. The higher voltage didn't bother it one bit.
beavo451  [Team Member]
4/19/2012 11:34:43 AM
These are LiFePO4 batteries and not Li-Ion. They come fresh off the charger at 3.6V on a open circuit. They drop down to ~3.3V under load with a nominal voltage of 3.0. Surefire states not to use in incadescents and only in the LED lights.

I would not use rechargeables in a weaponlight.
The_Hammer  [Team Member]
4/19/2012 12:16:24 PM
Originally Posted By beavo451:
These are LiFePO4 batteries and not Li-Ion. They come fresh off the charger at 3.6V on a open circuit. They drop down to ~3.3V under load with a nominal voltage of 3.0. Surefire states not to use in incadescents and only in the LED lights.

I would not use rechargeables in a weaponlight.


I use rechargeables for practice and general night time mayhem and primaries for bedside duty.