WF-139 Ultrafire duo charger
Ultrafire battery charger WF-139 is suited for 3,7V lithium rechargeable batteries such as: 18650/14500/17500/18500/17670. Wit the duo charger you also get a 1 meter long eu plug cable. On top of the Wf-139 charger there is a status indicator the will light up green when its fully charged and red when it’s still charging that way you know exactly when its full or empty. Suited to charge 2 batteries at the same time, perfect! Buy it now.