Lithium Ion battery charger with two independent charging channels and adjustable compartments. You can 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. The Li Ion battery charger features a 100/240 VAC. Applicable for 3.6 and 3.7v battery cells, the output of the UltraFire WF-139 is 4.2v with a variable current up to 550mA per channel.
Specifications of UltraFire WF-139 Battery Charger:
- Compatible with 14500, 17500, 17670, 18500, and most 18650 batteries
- Input: 100/240 VAC
- Output: 4.2v with variable current up to 550mA per channel
- 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