10 Reviews
70% (7)
20% (2)
0% (0)
10% (1)
0% (0)
30% Recommend this product (3 of 10 responses)
By James H.
17670 battery
October 25, 2021
Great battery, everything I'd hoped for.
By Ray
Central NY state
Battery Seems Fine...
April 5, 2021
I bought this 17670 battery to replace two cr123 batteries in my older model streamlight protac HL headlamp. While the battery fits fine, the voltage is too low and the light does not work. This is no fault of the battery. This headlamp requires the voltage of two cr123 batteries in series, 6v, to operate.
By Richard
Does not power my older SureFires
June 21, 2020
Does not work in my (late 80s? early 90s?) 6P or early 90s 12Z SureFires. But I do have a (mid 90s?) 6Z that it powers, although not as bright as 2 CR123s (which is ).
By Mark
Rohnert Park, CA
Works like a charm
April 2, 2019
Fits perfectly in my surefire lights. Works great
By Jack
Central GA
An excellent choice
January 19, 2019
I use flashlights all day every day. I keep a Streamlight 2xCR123 on me and chose a model that couldn't take 18650s because they are significantly larger. This battery last longer than 2 CR123 rechargeables and has worked reliably every day for over a year.
By Rosewood
Great batteries and nice fit in tight flashlights
July 30, 2018
I have other ultrafire 17670 batteries. These seem a bit slimmer where the protection circuit is installed. This allows these batteries to fit easily in a Surefire G2 and Surefire 6P whereas the the older ones I have are either tight fit or unable to fit. I have a couple of other lights that I have never been able to get a full size lithium ion battery to fit and these fit quite well. Thanks
By Lance
Okay battery
October 4, 2017
I bought this battery to run in my elzetta flashlight. I use my elzetta flashlight around the house alot and got tired of going through cr123 batteries. A 18650 won't fit so I bought this one. The charge holds okay and is okay for use around the house.
By Kevin
Perfect for high output LED lights that won't take 18650's
January 3, 2017
This will be ideal for your compact LED light that can't use an 18650 but your runtime will be less... still beats the RCR123A's though.
ConsShorter runtime than std. CR1323A's
By Troy D.
United States
Nice battery!
June 22, 2015
This thing is great, I run them in my P60/G2x/Fury/NCP12/M18 striker,and they are perfect. I have been running them for almost 3 month with many cycles. Don't hesitate to save tons of loot.
By Andrew
reliable and cost effective
November 7, 2012
I purchased 2 of these 17670\'s a few months ago for my eagletac p20c2 mkII and they have worked very well. When they eventually die i will not hesitate to buy another pair from this site. My only complaint is that one of the batteries had trouble fitting into my flashlight because the plastic cover was a bit too thick in certain areas, but i quickly solved the problem by fileing down the thick areas with a nail file. 5 out of 5 for delivering good quality and reliability for a fair price.

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