Author Topic: Ultrafire WT-139 Mod (Read 8692 times)

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.

rrtwister · « **Reply #1 on:** June 07, 2012, 08:06:31 AM »

I have the same charger.

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.

dannyboy · « **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

vaperkarma · « **Reply #3 on:** July 08, 2012, 08:07:58 AM »

Quote from: 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

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.

Author Topic: Ultrafire WT-139 Mod (Read 8692 times)

Breaktru

Ultrafire WT-139 Mod

rrtwister

Re: Ultrafire WT-139 Mod

dannyboy

Re: Ultrafire WT-139 Mod

vaperkarma

Re: Ultrafire WT-139 Mod