ChiTronic 2-Bay Intelligent LCD Quick Rechargeable Battery Charger for Independent Li-ion, LiFePO4, NiMH, 26650/18650/ AA/AAA Batteries Universal for Li-ion Ni-MH LiFePO4 batteries with 2-Slot. With LCD display,it is convenient to know about the process of battery charging. (Batteries NOT included) Intelligent Independent Slot for single or two different batteries charging at same time, automatically matching output current and voltage. LCD displays for multi-information, battery type, voltage, time, charging percentage, charging capacity worse battery and bad battery. Automatic 1.2V / 3.7V / 3.2V battery cell voltage and polarity detection. Over charging timeout protection; Mix charge the battery, reverse protection, precision end -of-charge detection; Auto alert indication for worse battery cell and bad battery cell; Auto active function for Lithium battery cell open (0 voltage).