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19840 Posts in 1272 Topics by 5187 Members - Latest Member: charbuild December 05, 2020, 07:30:54 PM
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Breaktru Forum  |  eCigarette Forum  |  Battery  |  Topic: Ultrafire WT-139 Mod
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Author Topic: Ultrafire WT-139 Mod  (Read 6839 times)

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Online Breaktru

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Ultrafire WT-139 Mod
« on: June 05, 2012, 06:07:54 PM »
Want to get the most out of your Ultrafire WT-139 charger and be able to charge shorter 3.7v batteries such as the 18350 and the 16340/ICR 123 ?
Rather than using dummy spacers such as a dowel with a bolt thru the center. You can wire the side terminals with simple internal jumpers.




Online rrtwister

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Re: Ultrafire WT-139 Mod
« Reply #1 on: June 07, 2012, 08:06:31 AM »
I have the same charger.  :thankyou:
Going to mod it over the weekend.
They put the side contacts in and couldn't figure why it did not work. Wondered why the company never hooked it up.  :Thinking:

Offline dannyboy

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Re: Ultrafire WT-139 Mod
« Reply #2 on: July 08, 2012, 07:36:26 AM »
Nice going. I can now buy 18350 batteries and not have to also buy a new charger  ;bananarock;

Offline vaperkarma

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Re: Ultrafire WT-139 Mod
« Reply #3 on: July 08, 2012, 08:07:58 AM »
Nice going. I can now buy 18350 batteries and not have to also buy a new charger  ;bananarock;

Yeah, I agree.
It's a popular charger that a lot of people have. Not a great charger. There are better ones out their, but the price is right.

Breaktru Forum  |  eCigarette Forum  |  Battery  |  Topic: Ultrafire WT-139 Mod
 

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