With usb charging socket 2100 mah special charger for new lithium ion batteries which are often used in flashlights for charging lithium batteries 14500 18500 18650 17670 17500 16650 22650 also suitable for charging micro aaa and aa nicd nimh rechargeable batteries with a 2100mah usb port for charging smartphones tablets cameras and other devices appropriate usb charging cable required features measurements 11 x 5 x 3 cm 230 v 5 v micro usb b connector