Single Battery US Charger for 16340 14500 18650 18550 500mA 4.2V Rechargeable Single Li-ion Battery Brand new and high quality. Model:HR-186-4V2 Chemistry: Li-Ion Charges one 16340, 14500, 18650, 18550 battery Comes with a standard, USA wall plug Output Voltage:DC 4.2V 500mA Input Voltage: AC 100 - 240V 50/60Hz Charge Rate: 500mA Size:10.4cm x 2.6cm x 3cm - 4.09inch x 1.02inch x 1.18inch