Breaktru Forum

eCigarette Forum => Battery => Topic started by: Breaktru on June 05, 2012, 06:07:54 PM

Title: Ultrafire WT-139 Mod
Post by: Breaktru 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.

(http://breaktru.com/ecig/ultrafire_wf139_charger.jpg)(http://breaktru.com/ecig/ultrafire_wf139_bottom.jpg)(http://breaktru.com/ecig/ultrafire_wt_139.jpg)

Title: Re: Ultrafire WT-139 Mod
Post by: rrtwister 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:
Title: Re: Ultrafire WT-139 Mod
Post by: dannyboy 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;
Title: Re: Ultrafire WT-139 Mod
Post by: vaperkarma 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.