Charging a 10440 Li Ion

[stoven]

I was wondering if there would be any issues with charging a 10440 LI Ion on the charger I bought off of Batteryjunction.com. The charger says it can charge 18650, 17670, and 16340 cells. If I put a 10440 cell and a shunt into the charger would there be any issues? I don't think there should be since the 10440 cell is 3.7 Volts just like the 18650.

I am looking for to order some 10440 cells for my L0D CE.

Thanks,

Steve

 

[DM51]

This should work fine in theory, as long as you do the math right and use the correct shunt resistance you will need for charging that cell on that particular charger (check its output). A 10440 Li-Ion should be charged at between 160mA - 320mA, with 220mA ideal.

HOWEVER, do not rely on the charger's green light (if it has one). And bear in mind the 10440 has no over-charge protection.

To be honest, you would probably be better off using a dedicated charger for it, such as a nano-charger.

 

[stoven]

Where can I get a nano charger?

 

[DM51]

AW has a sales thread here:
http://www.candlepowerforums.com/vb/showthread.php?t=140362
You will need to make sure you order one that is the right size for a 10440, as there are nano-chargers for other sizes such as CR123A.

 

[balazer]

I'm not sure which charger you got from batteryjunction.com, but if it's the DSD charger (their "TL-100"), it's very easily adapted to charge 10440 cells. Just bend up one of the sets of CR123 contacts so that the 10440 cell sits just above the plastic frame of the charger. The charge current of 350 mA is just a tad on the high side for typical 300-mAh 10440 cells, but not too bad.

The DSD charger has proven reliable, and is good about not charging the cells above 4.2 V.

The 10440 Nano is alright too, but sometimes charges the cells as high as 4.24 V. (that reduces the cycle life)

 

[Patriot]

Where can I get a nano charger?

I use this little critter too. It sure simplifies things.

http://www.lighthound.com/index.asp?PageAction=VIEWPROD&ProdID=2462

 

[cmaylodm]

Dealextreme.com has 10440/14500 chargers for $11.25 shipped if you don't mind waiting a few weeks for shipping.

 

[LumenHound]

I'm not sure which charger you got from batteryjunction.com, but if it's the DSD charger (their "TL-100"), it's very easily adapted to charge 10440 cells. Just bend up one of the sets of CR123 contacts so that the 10440 cell sits just above the plastic frame of the charger. The charge current of 350 mA is just a tad on the high side for typical 300-mAh 10440 cells, but not too bad.

The DSD charger has proven reliable, and is good about not charging the cells above 4.2 V.

The 10440 Nano is alright too, but sometimes charges the cells as high as 4.24 V. (that reduces the cycle life)

You may want to take the 350 mA charge rating of the DSD with a grain of salt.

AW has reported that some may actually charge with as much as 450 mA of current.

 

[Daekar]

I'm also considering buying myself and my girlfriend L0D CEs for our keychains, and the 10440s looked tempting. I don't mind buying a dedicated charger (it's small anyway..) but I am worried about over-discharging in the lights. I can't find a protection circuit for them the batteries either. Is it a safe idea to use these if we don't have a voltage-drop cutoff?

 

[balazer]

You may want to take the 350 mA charge rating of the DSD with a grain of salt.

AW has reported that some may actually charge with as much as 450 mA of current.

I see now that some are labeled as 450 mA. Mine is older and labeled as 350 ma.

 

[CaNo]

I have a Lacrosse bc700 charger and am about to buy some ultrafire 10440 batteries. My question is... will i be able to charge the 10440's on my charger? Or do I have to buy a separate charger for the 10440's?

 

[CaNo]

Anyone ever try this?

 

[zipplet]

You cannot do this. The LaCrosse is a NiCD/NiMH charger not a lithium ion charger. The charge methods are different. Do not try!

 

[CaNo]

Thank you very much for answering my question. I would have tried this and would have lost a $30 smart charger lol I ended up ordering a separate Trustfire charger instead.

You cannot do this. The LaCrosse is a NiCD/NiMH charger not a lithium ion charger. The charge methods are different. Do not try!

 

[TooManyGizmos]

AW has a sales thread here:
http://www.candlepowerforums.com/vb/showthread.php?t=140362
You will need to make sure you order one that is the right size for a 10440, as there are nano-chargers for other sizes such as CR123A.

DM51 .........................

AW told me he no longer sells a charger for his 10440 cells.
.

 

[DM51]

DM51 .........................

AW told me he no longer sells a charger for his 10440 cells.
.

LOL, that post of mine was >2 years ago. I'm not sure if 10440 (AAA size) Nanochargers are still available. Maybe other members can help here.

 

[TooManyGizmos]

Sorry DM51 ,

That dang "CaNo" opened a really old thread and I didn't notice.

But my comment is still current and correct.

No NANO's at AW's site for sale any more.


DM51 ........... Maybe you should lock this old thread ?????????????????????




Just say NO ...... to "CaNo"

 

[DM51]

Maybe someone would like to post here with a suggestion for 10440 charging. If appropriate, it could be split off and made into a new thread. Until then, I think this thread had better remain open.

 

[DM51]

LOL - I've just noticed TMG had already posted a new thread here. This one can now close.