22 minute charge time with the air cooled Makstar Optimum Charging System.|Lithium-ion batteries have greater life spans than their Ni-MH or Ni-Cad counterparts giving 430% greater run time.|Lithium-ion's 40% weight saving means 18 volt power can be obtained by a battery that weighs the same as a 12 volt Ni-MH battery.|4 pole motor.|Anti-restart function with warning lamp.|Capable of using wheels or discs for mains grinders.|Easy grip body.|Electronic current limiter with warning lamp.|High comfort grips.