The brand new USB Ansmann Automatic Li-ion Battery Charger is ideal for the recharging rechargeable 18650 flat top and raised button top batteries amongst other sizes. Numerous different sizes of rechargeable batteries can be charged, particularly in the lithium ion segment. With the Lithium 2 charger from ANSMANN you have chosen a universal all-rounder with the best price-performance ratio. With the two charge slots, you can charge 1-2 Li-ion rechargeable batteries in sizes 26650, 22650, 18650, 18500, 17670, 16340 etc. or 1-2 NiMH AA / AAA rechargeable batteries, independently from one another. The device detects the battery inserted fully automatically and without tedious adjustments. The charge process starts immediately, once the cells have been inserted with the correct polarity.  A colour-coded LED display is integrated above each slot to enable quick and simple reading of the charge status for your rechargeable batteries. This also indicates faulty, defective batteries as well as errors when inserting the batteries into the device.  USB charging cable included LED indicators Bad cell detection Reverse polarity protection Charging Output; 1 x 3.6/3.7V 1000mA (Li-ion) ; 2 x 3.6/3.7V 500mA (Li-ion) This charger can also charge the following 1.2v NiMH batteries: AAA, AA Please note this charger is not suitable for single use 3.6V batteries. It is also not suitable for Li-ion rechargable batteries which are not 3.6V/3.7V.  Below is a full list of the 3.6V / 3.7V Li-ion rechargeable batteries this charger is suitable for. 26650 26500 25500 22650 22500 21700 20700 18700 18650 18500 18490 18350 17670 17650 17500 17350 16650 16340 16500 14650 14500 14430 14350 13650 13500 13450 12650 12500 12340 10500 10440 10350 10340 Â