The XTAR VC4SL Battery Charger is a versatile, intelligent charger that supports a wide range of battery types, including AAAA to D cells, Ni-MH/Ni-CD, and various 3.6V/3.7V Li-ion batteries. Capable of charging up to four smaller cells or two large C or D cells at once, it automatically detects battery type and adjusts the charging current for optimal performance. With a three-stage charging cycle, soft start to prevent sudden energy spikes, and a clear LCD display, this charger ensures safe and efficient charging. The VC4SL set includes a USB cable, manual, and a premium pouch for easy transport.