Brightest LED-light on 14500 batteries

I happen to be in the Army now (norwegian borderpatrol near Russia that is). I was picking up some gear in the storage room yesterday, and guess what I found, a ton of 14500 3.6 volt lithium-batteries.

Now I need some help to find a flashlight that is at least as bright as UltraFire C2, but that uses these batteries.

That's pretty cool. I wonder what the heck they have those for?

Know of any equipment they are used in?

*sorry don't mean to take the thread off topic*

Hi Fredrick, you're looking for C2 performance (125 Lumens) but your at a voltage disadvantage. 6.0 - 7.4+ volts compared with the 14500's 3.7+

The L1DCE is very bright (90 lumens) with 14500s though https://www.fenix-store.com/product...id=70&osCsid=e1644bdc8eca358229117fe9005f62ad

How about the Candle-Power 14500 5-Mode(review, estimated 140 lumen on high), it could be even brighter if you modify it with a Cree Q5. The light can use 1xAA, 2xAA or similar sized battery up to 4.2v.

Are those batteries primary or rechargeable?

Welcome to CPF!

Hi. Thank's for quick response.
The batteries are not rechargeable, primary. They are imported from France, and we use them as "memory-batteries" in our old-school GPS-units. Probably kinda expensive, but the army has big budgets .

The Candle-Power light looks great, but for 40$ I might go for the Dexlight instead. What do you think?

Patriot36: The batteries in the C2 are serial-connected right? Doesn't that mean that the LED only gets 3.6 volt? Correct me if I'm wrong.

F-r-e-d-r-i-k said:

The Candle-Power light looks great, but for 40$ I might go for the Dexlight instead. What do you think?

Click to expand...

You might want to consider the Rexlight 2.1 as well. Althought not quite as bright as the Dexlight initially, it has much better output/runtime characteristics on 14500 rechargeable Li-ions.

See my review of number of multi-stage 1AA lights here:
Rex 2.1, Luma 301, DX X.1, C-LE v1.2, Fenix L1DCE-Q2, DX/Kai 5-Stage Review: RUNTIMES

I'm confused, the batteries are 3.6V primaries?

I have all the lights mentioned and think that the Jet Beam MKIIx is the brightest and best made. It's $50 but worth it.

Nake said:

I'm confused, the batteries are 3.6V primaries?

Click to expand...

So am I. Primary lithiums are 3V batteries.

Unless these are 3 cell NIMH battery packs, but that would still make them rechargeables.

I found one, http://www.voltdepot.com/product/17888.html , didn't know these existed.

bspofford said:

I have all the lights mentioned and think that the Jet Beam MKIIx is the brightest and best made. It's $50 but worth it.

Click to expand...

Where is a good place to purchase the JetBeam MKIIx?

Thanks.

musicalfruit said:

Where is a good place to purchase the JetBeam MKIIx?

Thanks.

Click to expand...

This is the only place I know of.

http://www.supertactical.com/unlimi...id=60&osCsid=8bb71dc4b27a2afda4e9755aa196aa4d

The Dexlight X.I is similar to the Jetbeam MKIIx with better knurling and a lower price(I also have an unused token to lower the price to $40). It is a bit dimmer then the Jetbeam but still bright enough and I prefer it's knurling to the Jetbeam's smooth body.

Nake said:

I found one, http://www.voltdepot.com/product/17888.html , didn't know these existed.

Click to expand...

Interesting. I wonder if they have a boost circuit? If not, what's the chemistry..

F-r-e-d-r-i-k said:

Hi. Thank's for quick response.
The batteries are not rechargeable, primary. They are imported from France, and we use them as "memory-batteries" in our old-school GPS-units. Probably kinda expensive, but the army has big budgets .

The Candle-Power light looks great, but for 40$ I might go for the Dexlight instead. What do you think?

Patriot36: The batteries in the C2 are serial-connected right? Doesn't that mean that the LED only gets 3.6 volt? Correct me if I'm wrong.

Click to expand...

Sorry Fredrik, I lost track of this tread.....

As for the 3.6 non-rechargeable, I didn't even know they existed. That said, the light that you picked should work fine with them. You could purchase a couple of protected li-ions and charger also if you wanted. After the intial purchase it's very inexpensive to run li-ion.

To answer your question the C2 has a voltage range from 3.7 to 9.0 volts...

It will run a 3.7 volts (4.2 volts fully charged) on a single 18650 Li-ion
http://batteryjunction.com/2600pcb-18650.html

or at 6.0 volts on 2 standard 3.0v CR123 lithiums
http://batteryjunction.com/1pcsofcrteli.html

or at 6.0 volts on 2 3.0v RCR123 li-ions (rechargeable)
http://batteryjunction.com/rc390reliba.html

or at 7.2 volts(8.4v fully charged) on 2 3.6v RCR123A (4.2v x 2 fully charged)
http://batteryjunction.com/uf16340.html

Hope that isn't too confusing.

is this the same as all the jetbeams? i know there is a MKI and MKII?

http://www.pts-flashlights.com/products/product.aspx?pid=6218

this would be the cheapest price atm.

jake25 said:

is this the same as all the jetbeams? i know there is a MKI and MKII?

http://www.pts-flashlights.com/products/product.aspx?pid=6218

this would be the cheapest price atm.

Click to expand...

That one has a Lux III emitter, the MKIIx has a Cree.

Nake: That is exactly the ones we use.

selfbuilt: Great review. I see your'e point with runtimes, but in tactical use output is all that matters, so the Dexlight is the one for me, since the Jetbeam is kinda hard to get.

Thank's everyone.