Ultra Fire WF-188 Switching Charger.

Fits most popular battery sizes including 10440, 14500, 16340, CR123, 17650, 17670, 18500, 18650, 26500, 26650 and most sizes in between.

• Charge both 3.0/3.2V & 3.6/3.7V batteries (including LiFePO4)
  
• Auto-off when batteries are fully charged
• Will not charge over-discharged batteries
  
• Independent charging channels
• Charge one or two batteries at a time
• 110/220V auto switch AC power