10440 Li-ion UltraFire 500mah

[frankr]

I'm thinking of buying some UltraFire 10440 Li-ions, I want to use them for my EDC (just ordered) fenix lod-ce

These are unprotected, I could not find any 10440 sized protected cells.

Any advise?

 

[Doug S]

Any advise?

Yeah. Running unprotected Li-ion cells in a light capable of running off of a single alkaline cell is highly ill advised. Any manufacturer/dealer such as Ultrafire that suggests doing so is highly irresponsible.

 

[diesel_dad]

The Fenix L0D is rated for 3.7V, so use with Li-Ion is within spec. I have not read many (any?) reports of problems with Li-Ion batteries and LED lights. Not sure whether this is a big risk or not.

 

[havand]

Yeah. Running unprotected Li-ion cells in a light capable of running off of a single alkaline cell is highly ill advised. Any manufacturer/dealer such as Ultrafire that suggests doing so is highly irresponsible.

It isn't any more safe than running off 2 unprotected cells? Hmm, this is counter to what I had always thought. Interesting.

 

[AndyTiedye]

Only downside I can see is that the light is quite capable of draining the battery too far.
That is only a risk if you charge it after running it down too far.

A properly-designed li ion charger should refuse to charge a battery that has been drained too far.

 

[jar3ds]

where do you get these cells? How can they be 500mah? when AW's is only like 180mah...

 

[jar3ds]

double post

 

[Lurveleven]

jar3ds, AW's cell is rated 320 mAh, not 180 mAh. It is still a long way up to 500 mAh. However, rated capacity and actual capacity is two completely different things, only a test (e.g. using a CBA) will tell us how good those cells are.

Sigbjoern

 

[coppertrail]

Here's the deal thus far:

The L0D is rated at .8V - 3.7V Input, the L2T .8V - 4.0V Input. I can't find the input rating of the L0D CE and L2D CE lights.

The 10440 AAA and 14500 AA cells on Lighthound's site say they're for lights that have a 3.6 - 4.2V rating.

That said, if the L0D CE and L2D CE models have this rating, these cells can be used. If not, we have to stick to primaries or NiMH cells. Am I correct on this one?

 

[Doug S]

Here's the deal thus far:

The L0D is rated at .8V - 3.7V Input, the L2T .8V - 4.0V Input. I can't find the input rating of the L0D CE and L2D CE lights.

The 10440 AAA and 14500 AA cells on Lighthound's site say they're for lights that have a 3.6 - 4.2V rating.

That said, if the L0D CE and L2D CE models have this rating, these cells can be used. If not, we have to stick to primaries or NiMH cells. Am I correct on this one?

No.

 

[frankr]

where do you get these cells? How can they be 500mah? when AW's is only like 180mah...

Lighthound has them
http://www.lighthound.com/index.asp?PageAction=VIEWPROD&ProdID=2461

 

[AW]

There are some discharge tests on these 500mAH vs 320mAH 10440s here:


http://candlepowerforums.com/vb/showpost.php?p=1633093&postcount=791

 

[coppertrail]

AW:

The Input voltages for the new Fenix L0D CE and L2D CE are as follows:

L0D CE: .8V - 3.6V
L2D CE: .8V - 4.0V

Would we be able to "safely" use 2 of your 3.7V 14550 cells in the L2D?

 

[AW]

coppertrail,

You'll have to check with the dealer/manufacturer to see whether they'll void the warranty by using LiIon cells. You can use only one 3.7V cell in the L2D.

AW

AW:

The Input voltages for the new Fenix L0D CE and L2D CE are as follows:

L0D CE: .8V - 3.6V
L2D CE: .8V - 4.0V

Would we be able to "safely" use 2 of your 3.7V 14550 cells in the L2D?

 

[coppertrail]

I see, if you used 2, you'd be using 7.4V, which would/could fry the light. You'd use (1) 14550 cell and a dummy cell. Fenix didn't mention whether using Li-Ion cells would void the warranty.

 

[AndyTiedye]

14550 and a dummy cell

Too bad they don't make a 141100

 

[Lurveleven]

There are some discharge tests on these 500mAH vs 320mAH 10440s here:


http://candlepowerforums.com/vb/showpost.php?p=1633093&postcount=791

Thanks for the link, the Ultrafire has the exact same capacity as your cells, and it show us that the Utrafire rating is worthless.

Sigbjoern

 

[Gnufsh]

Too bad they don't make a 141100

I would actually really like a li-ion battery the size of 2 AAs. You could use a 14670 with a spacer, though.

 

[jar3ds]

There are some discharge tests on these 500mAH vs 320mAH 10440s here:


http://candlepowerforums.com/vb/showpost.php?p=1633093&postcount=791

thank you for this