The Ultra Life WF-139 Battery Charger is a state-of-the-art, multi-cell lithium-ion battery charger featuring two independently controlled charging channels. The WF-139 is perfect for charging multiple batteries with uneven discharge rates and capacities at the same time. It also has adjustable compartments to accommodate batteries of different sizes, such as 18350, 18500 and 18650 batteries.

Features :

• Charger for 18350, 18500 and 18650 lithium-ion battery
• Allows you to simultaneously charge 2 batteries whose discharge state or capacity are unequal
• Has 2 charging channels
• Compact size for easy storage and transport
• Adjustable to battery type
• Input Current Voltage: 100/240 V AC
• Output current voltage: 4.2 V with dimmable up to 550 mA per channel