Battery Charger
Ultrafire Battery Charger
ULTRAFIRE
WF-139 FAST BATTERY CHARGER
Perfect charger for rechargeable lithium cells automatically charges them to the level required will not over-charge cells and will not charge over-discharged cells. Many protected 18650 batteries are actually 67mm long –
the WF-139 will accept batteriers up to 68mm long.
Features & Specifications:
– Ultrafire WF-138 charger for 14500 to 18650 batteries
– Independent charge channels for each battery
– Constant Current/ Constant Voltage Charge Method
– Charge cells from 50mm to 68mm long
– LED Status Light For Charging
– Output of 4.2v with variable current up to 550mA per channel