The Venom 2-4 AC/DC LiPo Battery Balance charger is a great solution for entry level to intermediate RC Hobby enthusiasts. This model comes equipped with single 3 cell, 4 cell, as well as dual 2 cell charge ports capable of charging two 2S batteries simultaneously. This charger includes many great features including auto detection of current rate and capacity of individual cells, Identifying the cell count automatically, automatic cut-off for safety and a temperature protection function and adjusts the charge power automatically when overheating.