*Only peninsular Type: FLAT TOP AND BUTTON TOP - Indicator light lets you know when charging is complete. - Designed to charge your batteries quickly and safely. - Output: 3.7V 4.2V 450mA - Charges 2 batteries simultaneously - Li-Ion Rechargeable 18650 with IC Protection. - Voltage: 3.7V - Can be used in laser pointer,Torch Flashlights and other electronic products. - Over charge and discharge protection. - Protection kicks in : 2.75v and 4.2v. - Over-Charging / Draining at 4.2v / 2,75v - Size : 18mm X 65mm (battery's body only)