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The UltraFire WF-139 battery charger has two independent charging bays. You can independently charge two batteries of unequal discharge at once. Charges all popular vape batteries like 18650 batteries and many others including 14500, 1700, 18500, 17670 and more. The Ultrafire charger incorporates some of the best battery recharging technology and capabilities such as its alternating current that facilitates the perfect charging environment for long lasting batteries, quick recharges and recharging efficiently.
This Ultrafire WF-139 Lithium Ion battery charger is one of the most affordable dual bay battery rechargers for e cigarette batteries such as the 18650. The WF-139 charger is integrated with smart auto shutoff detection as the batteries reach a full charge, this prevents overcharging and greatly extends the life of your external batteries.
Posted by Roddy Engel on Feb 23rd 2019
It was a good purchase and am happy with it
Posted by Norma Bishop on Aug 11th 2018
Works at least.
Posted by Chris on Jan 26th 2018
Of the many chargers that I have and it is amazing. In only seven hours it fully charged four IMR 18650 batteries. The led screen is definitely a plus; one can view the charging statistics, the power of the battery. I really needed a good inexpensive charger because my ecigs dont have the onboard internal internal charger for recharging batteries. So, if you need a charger for IMR batteries, this worked great. I for one, can say that this was a pleasing purchase. In case you are wondering I received my package quickly and plan on revisiting central vapors for more of my vape accessories.