UltraFire WF-139 Lithium Ion Battery Charger

UltraFire Universal Li-on Battery Charger

The Ultrafire WF-139 Lithium Ion battery charger is among the most affordable intelligent dual bay battery chargers for 18650 batteries.

The UltraFire WF-139 battery charger has two independent charging bays perfect for charging 18650 batteries. Independently charge two 18650 batteries simultaneously.

It incorporates recharging technology and capabilities specifically for 18650 batteries, such as its alternating current that facilitates the perfect charging conditions for maximizing your battery life while quickly and efficiently restoring full charge.

Integrated with intelligent auto shutoff detection and overcharge protection after the batteries reach a full charge, you can rest assured UltraFire battery chargers are safe and help dramatically extend the life of your external batteries.

Ultra-fire WF-139
Battery Charger Features:

Dual-channel Li-on battery charger
Rapid charge time.
Smart CPU controls
Alternating pulse charging

Charging Specifications:

Input: AC 100-240V
Output: 4.2V / 550mA

Optional Car Adapter Available:

DC 12V / 400mA
(sold separately)