Xtar MC2 - Charger for Li-Ion batteries incl. USB cable It has two charging slots that work independently of each other. Low weight, easy operation, low price, flexibility and size are the advantages of this charger. The following Li-Ion battery types can be charged: 16340 / 18350 / 10440 / 14500 / 14650 / 16650 / 17500 / 17670 / 18500 / 18650 / 18700 / 20700 / 21700 / 22650 / 26500 / 26650 (with 26500 and 26650 it is possible only 1 to charge the battery at the same time) 3,6V and 3,7V Li-ion batteries. Compatible with different battery sizes. Product Information: Reverse polarity protection and short circuit protection circuit Micro USB charging port Float charge at idle at self-discharge rate. Three-stage charging and 0V battery activation ​ IC temperature monitoring system Real-time charging status indication via LED display Voltage-dependent activation and deactivation of the charging process Input: DC 5V 500mA Output: DC 4.2V 500mA Constant charging current: 500 ± 10% mA Constant Charge Voltage: 4,2±0,05V Manufacturer's website and test results: Xtarlight Safety Instructions: 1. Only charge 3,7V or 3,6V Li-ion batteries! 2. Device is for household use, keep away from water and moisture! 3. Disassembly and modification are strictly prohibited! 4. Please avoid short circuit.