This is the Hitec X4 Plus AC/DC Powered Multi Charger, Discharger and Balancer. FEATURES Charges 1-6 cell LiPo, LiFe and Li-ION, 1-15 cell NiCd and NiMH and 2-20V lead acid batteries Fast Charge, Balance Charge and Storage Charge modes for lithium batteries Automatically controls current rate during charging and discharging process Four independent 50-watt power outputs charges up to four batteries at once Four independent balancing ports for lithium batteries Five user customizable presets per output Twin fan cooling system with internal sensor for controlling fan speed Batteries can be set to automatically Charge/Discharge or Discharge/ Charge up to a maximum of 5 cycles Automatic charge termination* if battery temperature gets too high