SureFire Battery Life

LEDs use less energy, but I'll be you've been experimenting a lot with the new light or pocket carrying it with locking out the tailcapf (accidental undetected activations.

Surefire batteries are good, but I too went to the cheaper by the 50 packs from various online battery and flashlight retailers. So far the Tenergy (Chinese) have be faultless at a dollar or less delivered. Sadly the rechargables don't seem to work in SF's but do in the Fenix flashlights, saving me even more for a work light; though I wouldn't trust a Fenix for critical work like I do my SFs; old bias I suppose. I carry duplicates of everything I consider critical gear, not just spare batteries.
 
123A Batterries

12 pack of CR123 Lithium Batteries - 3 Volt
12 pack of CR123 Lithium Batteries - 3 Volt

CR123-12Regular price: $36.00Sale price: $17.95
Quantity:

12 Replacement lithium batteries for Streamlight Scorpion, Twin-Task TT-1L, TT-2L, TL-2, TL-2LED, TL-3, TL-3LED, NF-2, TLR-1, TLR-2 Flashlights. The CR123 battery has a shelf life of nearly ten years.

This is a 12-pack of CR-123 3-Volt lithium batteries. Save $ when you buy 12.

http://www.streamlight-flashlights.com/cr123-12pack.html:
 
Surefire doesn't charge $4-$5 for batteries. you can get a box of a dozen from them for $21 last time I looked.

My experience with my 9P (three 123s) is that there is no dimming. In every case where the batteries had to be replaced, I use the light one evening and it works perfectly, the next day no light at all. I don't use the light a lot (I keep it in my nightstand with my 1911 and use it maybe twice a week).

To avoid problems, I swap the batteries out every two months, no matter what the useage. I love the light, but it seems a tad dangerous (especially for cops) to carry a light that can simply fail completely without warning.
 
I think they are suppose to last an hour, but I use mine here and there. I have several lights that use this size batteries.

I went to Ebay and found Battery Station batteries.
I got 20 batteries for $27.
They seem to last just as well as Surefire.
 
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