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Ultrafire WF-139 Lithium Ion Battery Charger for 14500, 17500, 17670, 18500, and 18650 Batteries

Ultrafire WF-139 Lithium Ion Battery Charger for 14500, 17500, 17670, 18500, and 18650 Batteries
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Ultrafire WF-139 Lithium Ion Battery Charger for 14500, 17500, 17670, 18500, and 18650 Batteries
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| Reg. Price $24.95
Usually ships the next business day
This item is Discontinued

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Battery Junction 30 Day Warranty
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Lithium Ion battery charger with two independent charging channels and adjustable compartments. You can now safely charge two batteries of unequal discharge state or capacity at the same time as this independently monitors and controls the charge for each battery compartment.

  • Compatible with 14500, 17500, 17670, 18500, and most 18650 batteries
  • Input: 100/240 VAC;
  • Optional 12vdc car adapter (cigarette lighter adapter)
  • Output: 4.2v with variable current up to 550mA per channel
  • The power output of this charger is incorrect for the protected 3V 750 & 900mah RCR123A cells that we carry. We specifically do not recommend using this charger for those cells. Only use this charger with 3.6 & 3.7V cells.
  • Spacers can be used to charge 3.6V & 3.7V CR16340 cells, the terminals in the sides of the unit are not connected internally.
  • Fits most button top 18650 batteries, measuring less than 2.7" (69.5mm) long

Click here for Manual
Charge Channels:2
Supported Chemistries:Li-Ion
Compatible Battery Sizes:14500, 17500, 17670, 18500, 18650
Charge Current:550mA
Batteries Included:No
Product Certifications:CE
Warranty:Battery Junction 30-Day Warranty
Return Policy:Battery Junction Return Policy
Product Weight:6.95oz
Product Dimensions:5.39" (L) x 2.44" (W) x 1.18" (H)
Country of Origin:CN
8 Reviews
63% (5)
38% (3)
0% (0)
0% (0)
0% (0)
63% Recommend this product (5 of 8 responses)
By Roger
United States
March 2, 2015
Simple, and work well
This is my third one of these chargers. Not because they fail but because I gave away the battery packs I made that needed the charger. Twice. It's just easier for me to give them the charger too and order another one, than ex[plain what to get. No problem, they're inexpensive enough.
ProsSimple and work well.
By Thomas Evans
United States
October 15, 2014
WF-139 is Great
I had thought my over 1 year old 18650's were failing. They wouldn't charge up fully for my e-cig. Took a chance on a new charger ( WF-139) BINGO !! Batts now charging right up to 4.2 I have had been using Trustfire TR001. This is a good charger, we'll see how long it lasts :)
By ptcoronet
United States Wa
September 15, 2014
Ultrafire WF-139 Lithium Ion Battery Charger for 14500, 17500, 17670, 18500, and 18650 Batteries
Works good. Sorry to see product discontinued.
By Gary Ross
New Braunfels, Texas
September 9, 2014
Ultrafire WF-139 Lithium Ion Battery Charger
Overall an excellent charger with a very reasonable price, and arrived in a short period of time. My only drawback was this charger did not come with directions. I had to go to the internet to check if flashing red then green was normal when batteries were inserted for charging.
By Bob
Toney, AL
August 7, 2014
Nice simple charger
Nice, simple to use charger. Works well and charges quickly. Good quality materials and seems very durable. Only reason I gave it 4 stars is because the 12vdc car power cord must be purchased separately.
ProsInexpensive, good quality.
ConsDoes not include 12vdc power cord.
By Randy
December 24, 2011
Great compact charger
I originally bought this charger for use with Ultrafire\'s 16340 protected batteries + CR123 dummy cells per the earlier review. Be warned: the *protected* Ultrafire 16340 batteries DO NOT FIT. I returned them for some 3000mAh Ultrafire 18650\'s which work great. Also, the car charger is not included so if you didn\'t notice that in the description be sure to order it separately if you need it.
By Don Brown
July 24, 2010
Great LiON charger
I have had one of these chargers for about a year and I am very happy with it. It charges all of the LiON batteries I use in my flashlights. If you get two of the dummy cells it will charge the RCR123 size batteries also. Just insert a dummy cell in series with the RCR123 in each circuit. I use this charger with 18650, 18500, 17670 and 16340/RCR123 LiON batteries. This charger is powered from the line and does not have a wall wart to lose. It is simple to use and just works.
By Andy Whitaker
July 7, 2009
Great Charger
I got this charger today as the combo deal (with protected 18650 cells) and it feels/looks like a very expensive charger. The 18650 feels secure within the sliding bay, and all connectors (I got the car adapter also) fit snug with hardly no play at all. Overall 10/10.
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Ultrafire WF-139 Lithium Ion Battery Charger for 14500, 17500, 17670, 18500, and 18650 Batteries

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This item is Discontinued
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