· High-performance 40V MAX* Lithium Ion battery with state of charge indicator shows you how much power you have left at all times.Charger Type : Jack Plug.· POWER DRIVE high-torque transmission gives you cutting power at the string, for clean, fast cuts· Convenient and versatile, it converts from trimmer to edger in seconds· The AUTOMATIC FEED SPOOL - AFS automatically feeds trimmer line as needed, with no bumping to interrupt your work· Maximum initial battery voltage (measured without a workload) is 40V. Nominal voltage is 36.