10440 charger question

[KAP]

i just discovered that my Pila is not ideal for charging 10440s due to its higher mA rating so i ordered this http://www.soshine.com.cn/html/Products152.htm
from DX. its rated at 450mA x 1 cell and 225mA x 2 cells. does this mean that once one cell reaches ~4.19v and stops charging that the other cell will get the full 450mA? if not, i'm guessing its safer and better for the cells to charge 2 at a time?

 

[DM51]

If the cells are discharged to within 0.3V of each other, charge them in parallel with the Pila IBC. If they are >0,5V different, don't try this - discharge the higher one to the same level as the lower one before you connect them in parallel.

 

[KAP]

If the cells are discharged to within 0.3V of each other, charge them in parallel with the Pila IBC. If they are >0,5V different, don't try this - discharge the higher one to the same level as the lower one before you connect them in parallel.

that was my initial thought - i read that in some other PILA thread, but that's mainly why i got a dedicated charger for 10440s. i'll probably have just 1 to charge at a time. that being the case, do you know about the Soshine charger and what will happen?

 

[DM51]

I don't know that charger, but it sounds as if the 2 bays are wired together, rather than independently. If that is the case, the charge rate will be ~1.4C for a single 10440, which is too high.

 

[KAP]

so if there's 2 cells in it at once will they each only get a maximum of 225mA? or is it possible for one of the cells to get 450mA once the other one finishes charging?
i'm not savvy enough to know if that's even electrically possible.:thinking:

 

[jirik_cz]

its rated at 450mA x 1 cell and 225mA x 2 cells. does this mean that once one cell reaches ~4.19v and stops charging that the other cell will get the full 450mA? if not, i'm guessing its safer and better for the cells to charge 2 at a time?

AFAIK soshine chargers always charge at full rate (450mA in this case), but when you charge more than one cell they will quickly cycle between the slots (one cell is charging, the second is idle then first cell is idle and the second is charging and so on...)

 

[csshih]

for your application..
why not try one of these?
http://www.candlepowerforums.com/vb/showthread.php?t=240090

 

[Patriot]

Is the WF-138 still considered safe for 10440? I'm still using Nano's but I thought the 138 was acceptable.

 

[Corvette6769]

Is the WF-138 still considered safe for 10440? I'm still using Nano's but I thought the 138 was acceptable.

My WF-138 has cooked all four of my 10440 cells (caused them to leak and no longer take a charge). Checked it with my Fluke 189 and output is 250mA as advertised. Just fine for CR123R. I have all but given up trying to run 10440 in my Fenix LD01.

 

[Bat]

try any slow 18650 charger with a magnet spacer,
for example:
-Xtar MP1: http://www.xtarlight.com/en/05-chanpin/p-001-1.asp?styleid=79

Trustfire TR001 is rubbish, kind of broken in less than a week (the LED indicator won't turn green). yes i can still use it, but i don't feel safe. i also hear multiple reports of charger explosion about this particular model

i currently own:
- Xtar WP2
- Xtar MP1 USB charger
- ML102 USB charger (which also doubles as a 5V usb mobile power supply)

- Trustfire TR001 Multi Charger (no longer used due to safety concerns)

 

[Corvette6769]

try any slow 18650 charger with a magnet spacer,
for example:
-Xtar MP1: http://www.xtarlight.com/en/05-chanpin/p-001-1.asp?styleid=79

Trustfire TR001 is rubbish, kind of broken in less than a week (the LED indicator won't turn green). yes i can still use it, but i don't feel safe. i also hear multiple reports of charger explosion about this particular model

i currently own:
- Xtar WP2
- Xtar MP1 USB charger
- ML102 USB charger (which also doubles as a 5V usb mobile power supply)

- Trustfire TR001 Multi Charger (no longer used due to safety concerns)

Wow at 500mA, -Xtar MP1: http://www.xtarlight.com/en/05-chanp...asp?styleid=79 is sure to burn up any 10440 cell.

Output: DC 4.2V 500mA
Constant charge current：500mA±10%
Constant charge voltage：4.2V±1%
Adaptor output: DC 5V 500mA

 

[Bat]

Wow at 500mA, -Xtar MP1: http://www.xtarlight.com/en/05-chanp...asp?styleid=79 is sure to burn up any 10440 cell.

Output: DC 4.2V 500mA
Constant charge current：500mA±10%
Constant charge voltage：4.2V±1%
Adaptor output: DC 5V 500mA

already the slowest cylindrical li-ion charger i own, the ML102 charges at 1000mA i believe

my Sony camera li-ion battery charger charges at 0.33A, i believe it can easily be modded to charge 10440

 

[Bat]

i actually prefer using a magnet spacer to an "external battery box"

 

[Bat]

can also be done using an AAA to AA adpater (you may need to add a very very small magnet at the negative terminal to make a circuit)



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[rshack]

I gather that I have been slowly cooking my 10440 IMR's and ICR's by using the WF188's alleged 300mA setting. So, I've been searching around, trying to find an appropriate fix.

Imagine my surprise when I seem to be unable to find a direct and straightforward answer. (Admittedly, this might be because I'm a moron and have been looking right at a good recommendation and just not seeing it.)

Can someone point me towards something appropriate?
* I *don't* want to make a charger.
* I *don't* want to have to rig up a charging cradle and power supply to enable a $100 charger to work.
* I *do* want just an ordinary, simple, affordable all-in-one charger that is appropriate for charging IMR and ICR 10440's, and doing so one-at-a-time.

Does such a device exist?

If not, is there a less-bad ordinary solution than the WF-188's that I already have?

 

[rshack]

On DX there is an SKU 14885 which is claimed to charge 3.6V at 230mA. Anybody know if that's true?

 

[rshack]

[h=1]Google tells me there is a "Nano Ultra Light Li-Ion Battery Charger" available for 16340's.
Anybody know what its mA is, and whether 10440's will fit in there?[/h]

 

[Jay R]

Buy one of these. Does the job perfectly and cost $17 delivered. Also works great on any cell up to 700mah but may take time.

Go for the non-display option. Red led lights up when charging and turns off when charged.

http://www.cpfmarketplace.com/mp/sh...l-Worlds-smallest-Li-ion-charger-with-display

 

[rshack]

Thanks a bunch for the link! That is the damnedest little thing ;-)

I just read the entire thread. His little charger solves a multitude of problems...

 

[Gregozedobe]

Cottonpickers makes great chargers, I'm very happpy with mine.