NKTECH H2 LCD Digital Intelligent 2-Slot Display Car Wall Battery Charger For Li-ion LiFePO4 26650 18650 16340 Ni-MH AA AAA C Battery Automatic 3.7V/1.2V battery cell voltage and polarity detection. LCD displays for multi-information, battery type, voltage, time, charging percentage, charging capacity, worse battery and bad battery. LCD display will automatically power off after 30 seconds to save electricity. Mix charge the battery, Reverse protection, Precision end-of-charge voltage detection. Over Charging timeout protection. Each cell can be installed different battery to charge and has a separate LCD display charging parameters. With a dedicated power adapter, a convenient car charge adapter (DC 12V) and a mini USB cable (DC 5V) to charge, safe and portable, a good helper for home or travel. Compatible Batteries: 3.7V Li-ion Battery, such as 26650/18650/16340 batteries etc; 3.2V LiFePO4 Battery, such as 26650/18650/16340 batteries etc; 1.2V Ni-mh Battery, such as AA/AAA/C batteries.