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Old 08-16-08, 10:33 PM   #1
brokenkee
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fenix l2d flashlight battery?

I ordered the fenix l2d premium Q5 flashlight the other day. I also ordered some 18650 rechargeable batteries.

I then got to wondering if the 18650 batteries are going to work in the flashlight. The product details say two 1.5V AA (alkaline, Ni-MH, Lithium).

If the 18650 will not work, what is the best alternative for a rechargeable battery?
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Old 08-17-08, 12:14 AM   #2
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The 18650 batteries won't work in the L2D flashlight. Too large a battery. And those batteries also require a special charger, as a side note.

For my L2D flashlights, I use both the Duracell 2650 mAh AA NIMH batteries (available at lots of retail stores or online) or the Maha PowerEx 2700 mAh AA NIMH batteries (available via Thomas Distributing). I prefer the PowerEx batteries, which can be had in a 4-pack for about $13 here. But, the Duracell 2650 mAh batteries are very good.

Which 18650 batteries did you get? The AW ones from Fenix-Store or 4Sevens.com? You could always sell them to me, since I can use them in a flashlight I have that uses those.
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Old 08-17-08, 04:45 AM   #3
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Originally Posted by varuscelli View Post
The 18650 batteries won't work in the L2D flashlight. Too large a battery. And those batteries also require a special charger, as a side note.

For my L2D flashlights, I use both the Duracell 2650 mAh AA NIMH batteries (available at lots of retail stores or online) or the Maha PowerEx 2700 mAh AA NIMH batteries (available via Thomas Distributing). I prefer the PowerEx batteries, which can be had in a 4-pack for about $13 here. But, the Duracell 2650 mAh batteries are very good.

Which 18650 batteries did you get? The AW ones from Fenix-Store or 4Sevens.com? You could always sell them to me, since I can use them in a flashlight I have that uses those.
Shipping kills the PowerEx batteries for me. Best I saw was about $19 for the 4 batteries shipped. I need to find those Duracell batteries locally and try them. I'm getting about 3.5 hours out of some Energizer 2500 maH batteries with the L2DQ5 on strobe mode.
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Old 08-17-08, 06:58 AM   #4
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I purchased the trustfire protected 2500mah 2 pack from DX. I was aware it needed a special charger so I also ordered the Ultrafire 3.6/3.7 battery Charger.

Thanks for the offer to take them off my hands, but i think I will just keep them, maybe the next torch I buy will use them.
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Old 08-17-08, 08:57 AM   #5
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I purchased the trustfire protected 2500mah 2 pack from DX. I was aware it needed a special charger so I also ordered the Ultrafire 3.6/3.7 battery Charger.

Thanks for the offer to take them off my hands, but i think I will just keep them, maybe the next torch I buy will use them.
Yeah, now that you've got them you might as well get a light that will use them.

From my limited experience, a great number of the flashlights that will use the 18650 are also very respectable flashlights. For instance, a Fenix TK11 at $78 via 4sevens.com (actually closer to $72 with the 8-percent discount) will use those...and it's a flashlight that can be used on a bike (some folks do so, in any case), even though it's realistically got a bit less spill than would be truly desirable in a bike light -- but the throw is great. And hey, the TK11 would be a heck of a flashlight just to own. And it's got a 2.7 hour runtime on high (225 lumens) with the 18650 (impressive no matter how it's used).
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Old 08-17-08, 09:28 AM   #6
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I need to find those Duracell batteries locally and try them.
You'll probably want to watch for the Duracells on sale somewhere to get a good price. The regular price (on average) seems to be around $13 plus tax for four of them (at least, where I live). I've seen them for less than $10 on sale and I think I even saw a 4-pack for $7.99 once at one of our local grocery stores. From Amazon.com you can get an 8-pack for around $19, but shipping costs will vary (in some cases you can get free shipping with Amazon, typically when they run those "free shipping with $25 purchase" deals).

On the Powerex batteries, the way to get them is to by more at once (for instance, in an 8-pack)...then shipping is decreased significantly by being spread out over a larger number of batteries. It's the small purchases that will mess you up with Thomas Distributing. The Powerex are still expensive, but from the overall performance standpoint, I love them.

I've got a bunch of the Energizers 2500 mAh batteries that have very inconsistent behavior after relative short times of use. Many no longer hold a charge well, and some have died completely (even when treated well). I no longer trust the overall performance of the Energizers and I think they perform well only for short periods of time, in a relative sense (and often, one will go bad before the others in the package, after which you have to figure out which one is messed up and affecting the performance of the others -- since any two or three or four used together perform only as well as the worst one).
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Old 08-17-08, 10:31 AM   #7
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Varuscelli

Thanks for the recomendation on the flaslight. I will seriously consider it when I purchase my next light. I will wait to see how I like the Q5, (from all reports here I think I will like it just fine.) I do believe in purchasing quality products (when I can afford them)
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Old 08-17-08, 11:04 AM   #8
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Varuscelli

Thanks for the recomendation on the flaslight. I will seriously consider it when I purchase my next light. I will wait to see how I like the Q5, (from all reports here I think I will like it just fine.) I do believe in purchasing quality products (when I can afford them)
You're welcome. On the L2D Q5, if you haven't used a small flashlight along the lines of that one before (one that takes full advantage of recent technology), it will probably blow you away in terms of size and output, especially given that it uses just two AA batteries. I think until they get one in their hands, most people (like I did) tend to have an iconic image in their minds of older AA Maglites, and the newer flashlights like the Fenix L2D are far and away better than those. Most folks expectations are exceeded when they first fire up one of the newer lights like the L2D. If you've not seen one of these in use in person, you'll likely be very impressed.
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Old 08-18-08, 07:36 AM   #9
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Does anyone know way it would say Lithium in their battery specs section? Do they make AA Lithium batteries?
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Old 08-18-08, 07:56 AM   #10
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Does anyone know way it would say Lithium in their battery specs section? Do they make AA Lithium batteries?
Most of us use the rechargeables, and do fine with them.
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Old 08-18-08, 08:03 AM   #11
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Does anyone know way it would say Lithium in their battery specs section? Do they make AA Lithium batteries?
Yes, there are non-rechargeable lithium batteries. That being said, go with a high capacity rechargeable battery from a reputable maker, just not Energizer as they seem to be plagued with problems.
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Old 08-18-08, 08:19 AM   #12
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Does anyone know way it would say Lithium in their battery specs section? Do they make AA Lithium batteries?
Yeah, there are certainly AA lithium batteries around that can be used in the L2D.

But, the confusion here might have to do with the difference between lithium and lithium-ion (Li-Ion) batteries. The 18650 batteries as referenced in the first post are Li-Ion but they are not the same as AA lithium batteries.

Li-Ion are rechargeable, but regular lithium are not. And as far as I know (and I could be mistaken) there aren't any Li-Ion rechargeable batteries in AA size. There are, however, lithium batteries in AA size (non-rechargeable).

I might be a bit off in my interpretations...but I think the lithium versus lithium-ion is the point of confusion as related to the original post and compatibility with the L2D.
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Old 08-18-08, 08:56 AM   #13
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[But, the confusion here might have to do with the difference between lithium and lithium-ion (Li-Ion) batteries. The 18650 batteries as referenced in the first post are Li-Ion but they are not the same as AA lithium batteries.]

That is exactly what I thought.
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