Foxnovo F-2 2-Slots Li-ion Ni-MH Ni-CD Sound Prompt Battery Capacity Testing LCD Intelligent Battery Charger with US-plug Adapter 12V Car Adapter for 26650, 22650, 18650, 18500, 18490, 17670, 17650, 17500, 16340, 14500, 10440 Ni-MH and Ni-CD A, AA, AAA, C, SC Rechargeable Batteries (Black) Capable of charging 2 batteries of different sizes, types and capacities at the same time; Each of the four battery slots monitors and charges independently; LCD instantly shows the charging process, battery voltage, charging current and capacity. Automatically identifies Li-ion, Ni-MH and Ni-Cd rechargeable batteries. Automatically detects battery status and selects the appropriate voltage and charge mode; Automatically stops charging when complete. Sound prompt function (Any slot completes a charging or dischagring step, and the prompt tone rings.) Two types of charging current: 0.5A, 1A; Features reverse polarity protection, short-circuit protection; Adopt microcomputer control, negative voltage control, and CC-CV charge. Come with a US-plug switching adapter for indoor use, and a 12V car charger adapter for in car use. With a USB 5V output jack, when put full-capacity batteries into the slots, it can be used as a portable power supply to charge mobile phones and other electronic devices.