Ultra Fire WF-138 Switching Charger.

Charges CR-123A, RCR123A, TR-123A 3.0V/3.7V batteries.

***Selector should be set to 3.0V for charging LiFePO4 cells

• Charge both 3.0V & 3.6V batteries
• Auto-off when batteries are fully charged (1 to 2 hours)
• Independent charging channels
• Charge one or two batteries at a time
• 110/220V auto switch AC power

WF-138 Specifications:

• 2 Bay independent charging channel
• 250mA charging rate for each channel
• intelligent IC control with full auto-stop
• 4.2V / 3.6V selector for charging 3.7V and 3.0V Li-ion cells ( the recessed switch is designed so you won't accidentally move the setting, you'll have to use a ball point pen or paper clip to change the setting manually )
• 100-240V worldwide voltage auto-switch CE and PSE approved