UltraFire WF-128S UK Plug 4.2V 1000mA 3-Slot Li-ion Battery Charger for 26650 - Grey + Black
Auto voltage monitoring; Compatible w/ 3.7V li-ion battery; With USB input port; Battery output: 5V / 1~2.5A; Built-in auto cut-off device; Charging: switch is in Charge and red light flashing; Discharge: switch is in USB O/P