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Old 09-02-2010, 01:51 AM #1
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Default Best charger for AW 18650 Batteries

Hello all, I have an order in for a custom 445 kit from Jayrob (driver maxed out to +1200mAh) and the consensus seems to be that the AW 18650 Protected 2600mAh rechargeables are the best for use with this high current laser diode:
AW 18650 Protected 2600 mAh Rechargeable Lithium Battery

I plan on purchasing two of these batteries and a charger. The Lighthound website also has a 18650 charger and I was wondering if this would be the best one to use:

$17.99 - Ultrafire WF-139 Charger for 18650 3.7 volt Lithium Battery Charger:
Ultrafire WF-139 Charger for 14500 / 17500 / 18500 / 18650 / RCR123 3.7 volt Lithium Battery Charger

I found a combo kit from another website that includes two batteries and a charger but I don't think these batteries are the newer series that support the high current draw:
AW 18650 2600mAh Rechargeable Battery and Charger Combo

My question is should I just purchase the $17.99 charger or do I have to use a special charger with these type of batteries. Thanks in advance...

- Paul


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Old 09-02-2010, 01:55 AM #2
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Default Re: Best charger for AW 18650 Batteries

I have the WF-139 charger (ordered from LightHound too) with AW 18650 protected 2600mAh batteries. It seems to work, but I haven't had either long enough to comment on long term effects, if any. I don't think it requires a special charger, but you want a decent charger.
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Old 09-09-2010, 03:41 AM #3
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Default Re: Best charger for AW 18650 Batteries

Paulzimm;

I have tried the Ultrafire WF-139 Charger and many others.

The WF-139 overcharges lithium ion batteries (~4.3 VDC).

I would choose another charger.

I prefer "brand-name" cells that have been thru U.L. testing like Sanyo or Sony, for my 445nm builds.

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Old 09-09-2010, 09:05 AM #4
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Default Re: Best charger for AW 18650 Batteries

Quote:
Originally Posted by LarryDFW View Post
Paulzimm;

I have tried the Ultrafire WF-139 Charger and many others.

The WF-139 overcharges lithium ion batteries (~4.3 VDC).

I would choose another charger.

I prefer "brand-name" cells that have been thru U.L. testing like Sanyo or Sony, for my 445nm builds.

Larry
My ultrafire WF-139 auto cut-off at 4.15V. I think it's a new version of WF-139.
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Old 09-09-2010, 02:27 PM #5
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Default Re: Best charger for AW 18650 Batteries

You mean you have the new version of the WF-139 which stops charging at 4.15 volts instead of the older version which stops at 4.3 volts? I just want to be sure I understand what you are saying. I will do some charging tests when I have time...
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Old 09-09-2010, 04:19 PM #6
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Default Re: Best charger for AW 18650 Batteries

Yeh, it stops charging at 4.15V.

After the the led indicator turn green, I check the battery, it's 4.15V. Then I leave the battery in charger 2 more hours, It's still 4.15V. (I tested both protected and unprotected batteries)

I think my WF-139 is newer version, the voltage when don't charge about 4.7-4.8V.
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Old 09-17-2010, 03:23 AM #7
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Default Re: Best charger for AW 18650 Batteries

So is the general consensus that the WF-139 is the best for now? Or what?
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Old 09-17-2010, 03:30 AM #8
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Default Re: Best charger for AW 18650 Batteries

I personally do hobby rc stuff as well and I use my hobby grade charger to charge my batteries. Here is the guy I have ElectriFly | Triton EQ AC/DC Charger, Discharger, Cycler, Balancer he will do almost every battery out right now. Lipho4, Life, LI-poly, LI-ion. The user controls the charge rate. I use this to charge 70mah li-poly's, 2300mah li-fe's, 5000's mah LI-Poly's and my laser batteries perfectly. I would recommend this charger to anyone looking for a good quality charger.
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