CR123 Batteries

Items to keep you alive in the event you must evacuate: discussions of basic Survival Kits commonly called "Bug Out Bags" or "Go Bags"

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Re: CR123 Batteries

Post by MacWa77ace » Thu Jul 19, 2018 10:28 am

UPDATE: did I quick experiment last night.

Equipment: Digital VOM w/ a 'DC' selector setting and a 'Battery' Selector setting on the same unit. displays to 4 decimal points. HT radio w/ internal digital voltage meter. Displays to 1 decimal point.

HT radio read its 7.4v Li-ion battery at 7.6v, the power was on so there was a load, and the battery was discharging at the time of the read.
With the battery removed from the HT, the VOM on 20v DC setting, the VOM read the battery at 7.65v. Switched to the 9v Battery setting and the VOM read 7.65v. No external load and not discharging.

I'm pretty confident with those results, testing a battery in an open circuit via VOM with a DC setting is an accurate way to do the Voltage method test [+/- .05 volts]. The variance could also be attributed to number of decimal places each testing device could display.
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Re: CR123 Batteries

Post by NT2C » Thu Jul 19, 2018 2:41 pm

Be aware, many VOMs with battery settings don't actually put a load on the battery, they just have actual setting stops on the dial that give appropriate voltage scales for popular battery types. I have one of those units in fact and it regularly gives a green light to batteries that my old reliable Radio Shack 22-091 shows to be just above fail.
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Re: CR123 Batteries

Post by Stercutus » Thu Jul 19, 2018 6:43 pm

rooks wrote:
Wed Jul 18, 2018 11:29 pm
Are you in the US? In the case of Surefire batteries, why not simply order direct from them?

https://www.surefire.com/batteries.html

If you also search for authorized dealers, you might find one local to you that you can go to and maybe save a couple dollars.
While genuine, at $8 per battery does not meet the requirement of "cheap". I can get them at Lowes for less than that.
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Re: CR123 Batteries

Post by NT2C » Thu Jul 19, 2018 7:42 pm

Go on eBay and get some rechargeable 16340 batteries and a good charger, such as a Nitecore D4 and you'll be good to go. Seriously, it's the least expensive option in the long run because Li-ion 16340 batteries can be recharged thousands of times and hold their charge quite a long time.
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Re: CR123 Batteries

Post by rooks » Fri Jul 20, 2018 3:34 am

Stercutus wrote:
Thu Jul 19, 2018 6:43 pm

While genuine, at $8 per battery does not meet the requirement of "cheap". I can get them at Lowes for less than that.
Ah, sorry. Didn't realise you were talking about rechargeable batteries.
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Re: CR123 Batteries

Post by raptor » Fri Jul 20, 2018 11:47 am

Stercutus wrote:
Thu Jul 19, 2018 6:43 pm
rooks wrote:
Wed Jul 18, 2018 11:29 pm
Are you in the US? In the case of Surefire batteries, why not simply order direct from them?

https://www.surefire.com/batteries.html

If you also search for authorized dealers, you might find one local to you that you can go to and maybe save a couple dollars.
While genuine, at $8 per battery does not meet the requirement of "cheap". I can get them at Lowes for less than that.

This site does have these 12 non-rechargeable for $24.95 + shipping or about $2.50 w/shipping. These are not a bargain (~going retail rate for real ones) but less than $8.
https://www.surefire.com/batteries/12-p ... eries.html

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Re: CR123 Batteries

Post by moab » Sat Jul 21, 2018 1:29 am

I bought my 18650's from Fenix. With a digital panel charger. They work great. But it sounds like I paid quite a bit. 2 - 2900mah 18650's for $30. The two bay charger was $25. I had picked up two PD35's for $30 each. Which is about half price for last years model. Have not had a chance to test them on my AK's. But will soon. What should I have paid for 2900's?
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Re: CR123 Batteries

Post by NT2C » Sat Jul 21, 2018 2:11 am

moab wrote:
Sat Jul 21, 2018 1:29 am
I bought my 18650's from Fenix. With a digital panel charger. They work great. But it sounds like I paid quite a bit. 2 - 2900mah 18650's for $30. The two bay charger was $25. I had picked up two PD35's for $30 each. Which is about half price for last years model. Have not had a chance to test them on my AK's. But will soon. What should I have paid for 2900's?
Not going to claim they actually have that capacity, but pretty darn close based on how long I've been able to use them in various lights I own.

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Got 10 of them for $23 on eBay a few years ago.
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Re: CR123 Batteries

Post by moab » Sat Jul 21, 2018 3:55 am

KJ4VOV wrote:
Sat Jul 21, 2018 2:11 am
moab wrote:
Sat Jul 21, 2018 1:29 am
I bought my 18650's from Fenix. With a digital panel charger. They work great. But it sounds like I paid quite a bit. 2 - 2900mah 18650's for $30. The two bay charger was $25. I had picked up two PD35's for $30 each. Which is about half price for last years model. Have not had a chance to test them on my AK's. But will soon. What should I have paid for 2900's?
Not going to claim they actually have that capacity, but pretty darn close based on how long I've been able to use them in various lights I own.

Image

Got 10 of them for $23 on eBay a few years ago.
Ya. See. I like ebay. I buy almost all of my stuff off of ebay. If I need it right away. And can't find it in the LA area (cause even first class is almost next day here). I then buy from Amazon Prime. But 99% of the time I buy from Ebay. I've been using Tenergy NMH AA rechargables. And a big 10 cell charger on my desk. For everything in the house. They run forever. I lose the batteries before they ever wear out.

I'm really digging these PD35 Fenix Flashlights. I've had Fenix E21's forever. But they aren't weapon lights. I'm excited to see how well they do on my AK's. I bought them specifically to run on my firearms with a quick release. So they can also be used as just flashlights during a bug out or inch. First flashlight I've owned that takes 18650's. They're still on their first charge. So I can't tell how well the batteries are going to work. But I trust Fenix. And didn't even think about hunting around for a deal on the bats. I'll have to check out ebay for some backups.
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Re: CR123 Batteries

Post by moab » Sun Jul 22, 2018 12:43 am

Holy crap those are cheap! Even if they only worked at half capacity and for half as long. It's still a deal. I might try four of these. What's the harm? 5 bucks? lol.

https://www.ebay.com/itm/4-8-16-3-7V-18 ... itleDesc=0
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Re: CR123 Batteries

Post by NT2C » Sun Jul 22, 2018 2:14 am

moab wrote:
Sun Jul 22, 2018 12:43 am
Holy crap those are cheap! Even if they only worked at half capacity and for half as long. It's still a deal. I might try four of these. What's the harm? 5 bucks? lol.

https://www.ebay.com/itm/4-8-16-3-7V-18 ... itleDesc=0
Don't forget you'll also need a charger for them if you don't already have one.
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Re: CR123 Batteries

Post by moab » Sun Jul 22, 2018 9:31 am

KJ4VOV wrote:
Sun Jul 22, 2018 2:14 am
moab wrote:
Sun Jul 22, 2018 12:43 am
Holy crap those are cheap! Even if they only worked at half capacity and for half as long. It's still a deal. I might try four of these. What's the harm? 5 bucks? lol.

https://www.ebay.com/itm/4-8-16-3-7V-18 ... itleDesc=0
Don't forget you'll also need a charger for them if you don't already have one.
I have a charger. Gonna order some.
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Re: CR123 Batteries

Post by MPMalloy » Sun Jul 22, 2018 8:45 pm

RonnyRonin wrote:
Mon Jul 16, 2018 8:50 pm
Battery Junction and Battery station are two reputable sellers I have used.
I have done business with both companies and I do recommend them. It was a couple of years ago.

I agree about CR123's & Amazon. :(

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Re: CR123 Batteries

Post by crypto » Mon Jul 23, 2018 2:41 pm

One note about "18650 vs 2xCR123" is that its not only the voltage difference: they're physically not the same dimensions.

a CR123 is substantially thinner (2mm less) than a 18650 as well as not being slightly longer than 1/2 of an 18650 (340mm) and many lights are too skinny to accept an 18650. I know for sure that all the Streamlights I had a few years ago wouldn't take them, and I'm pretty damn sure neither would the Surefire lights. My current Streamlight does though.

That sucks about the current crop of surefire and energizer batteries on amazon being counterfeit: I'm still using a couple of 40-packs I bought several years ago and they're great.
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Re: CR123 Batteries

Post by raptor » Mon Jul 23, 2018 3:18 pm

crypto wrote:
Mon Jul 23, 2018 2:41 pm


That sucks about the current crop of surefire and energizer batteries on amazon being counterfeit: I'm still using a couple of 40-packs I bought several years ago and they're great.
A good example of why the "stock them deep when they are cheap" is a good practice.

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Re: CR123 Batteries

Post by NT2C » Mon Jul 23, 2018 5:56 pm

crypto wrote:
Mon Jul 23, 2018 2:41 pm
One note about "18650 vs 2xCR123" is that its not only the voltage difference: they're physically not the same dimensions.

a CR123 is substantially thinner (2mm less) than a 18650 as well as not being slightly longer than 1/2 of an 18650 (340mm) and many lights are too skinny to accept an 18650. I know for sure that all the Streamlights I had a few years ago wouldn't take them, and I'm pretty damn sure neither would the Surefire lights. My current Streamlight does though.

That sucks about the current crop of surefire and energizer batteries on amazon being counterfeit: I'm still using a couple of 40-packs I bought several years ago and they're great.
This is a good point that I had forgotten about. However, 16340 rechargeables are the same size, but they're 3.7 VDC instead of 3 VDC. Most LED lights don't have an issue with the voltage though.

This link covers it well: http://www.cr123batteries.com/cr123-v-16340-guide
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Re: CR123 Batteries

Post by NT2C » Mon Jul 23, 2018 6:00 pm

For those of you looking for a CR123A storage solution for EDC or bug out bags:

http://www.cr123batteries.com/6-cr123s- ... tery-case/
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Re: CR123 Batteries

Post by MegaWoodsWalker » Wed Jul 25, 2018 9:44 pm

A 16650 Lithium ion battery very often will replace 2XCR123. This works in SF lights. The nominal voltage it 3.7 volts however off the charger it's 4.2v. The mAh is 2500 so we are taking about 9.25 watt hours. This is my preferred over 2XCR123. If the light will take 18mm cells then 18650 is the way to go. I use Keeppower 3500 mAh for protected and Sanyo 3500 mAh for naked 18650. I prefer SF brand CR123 primaries when not using lithium ion.

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Re: CR123 Batteries

Post by Ronin101 » Thu Jul 26, 2018 5:30 pm

Titanium Innovations are 1.20 a piece on Battery Junction. they are GTG. I have used them for many years!!!!

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Re: CR123 Batteries

Post by JT42 » Fri Jul 27, 2018 12:27 pm

To greatly reduce the chances of getting "fakes," and actually get what you pay for, try going to an electronics distributor that caters to industry but also sells to the public instead of place that primarily sells to the general public. I've purchased from https://www.digikey.com/ for years -- they have full data sheets available for everything they sell. I've also purchased from https://www.mouser.com/ with good results. I did a quick search for CR123 at Digikey and they have several options for primary (non-rechargeable) cells. You'll most likely pay a bit more than general retail, but they also offer volume discounts if you order 10, 50, 100, etc.

There will be a shipping charge at places like that.

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Re: CR123 Batteries

Post by moab » Fri Jul 27, 2018 10:41 pm

https://www.batteryjunction.com/recharg ... to+High%29

What is the difference between protected and unprotected? Nice reviews on the Samsungs and Panasonics. I kind of like name brand over the ebay no names. Anyone know how legit the reviews are on above?
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Re: CR123 Batteries

Post by NT2C » Fri Jul 27, 2018 11:01 pm

moab wrote:
Fri Jul 27, 2018 10:41 pm
https://www.batteryjunction.com/recharg ... to+High%29

What is the difference between protected and unprotected? Nice reviews on the Samsungs and Panasonics. I kind of like name brand over the ebay no names. Anyone know how legit the reviews are on above?
Protected batteries have chips built onto them that limit charging/discharging rates, as well as keeping a battery from being discharged below a level it can recover from or over charged.
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Re: CR123 Batteries

Post by MegaWoodsWalker » Fri Jul 27, 2018 11:44 pm

NT2C wrote:
Fri Jul 27, 2018 11:01 pm
moab wrote:
Fri Jul 27, 2018 10:41 pm
https://www.batteryjunction.com/recharg ... to+High%29

What is the difference between protected and unprotected? Nice reviews on the Samsungs and Panasonics. I kind of like name brand over the ebay no names. Anyone know how legit the reviews are on above?
Protected batteries have chips built onto them that limit charging/discharging rates, as well as keeping a battery from being discharged below a level it can recover from or over charged.
Yes. That's the correct answer. First appearance and dimensions. Protected 18650 tend to be longer to accommodate the circuit. The purpose is to prevent over discharge/charging of the battery. The circuit terminates the charge before getting too low. If over discharged lithium ion batteries become dangerous to charge. Most of mine terminate around or just below 3 volts. Naked or unprotected do have some pros. They're cheaper, have less things to go wrong and often have a higher max amp draw.
Best unprotected from a trusted seller.

https://www.illumn.com/18650-sanyo-ncr1 ... t-top.html

in action.

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Best protected which is really the above battery re wrapped with circuit added.

https://www.illumn.com/18650-keeppower- ... n-top.html

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If the gear item has internal protection I go with naked. If not or am mixing batteries tend to go with naked.

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Re: CR123 Batteries

Post by MPMalloy » Sat Jul 28, 2018 12:32 am

:?:

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