Stihl Advance X Vent Helmet Set Battery & Electric mower Can be used in combination Automower® Model:435X AWD NERA Can be used in combination with high pressure cleaners 9 m s2 Total length 184 cm 3) Cutting diameter 420 mm Standard cutting tool AutoCut C 26 2 Recommended battery AP 300 S Working time with AP 200 with metal cutting blade up to 50 min 4) Working time with AP 200 with mowing line head up to 28 min 4) Working time with AP 300 battery up to 70 min 4) Working time with AP 300 battery (2) up to 36 min 5) Working time with AR 2000 L with mowing line head up to 160 min 4) Working time with AR 3000 L with metal cutting blade up to 430 min 4) Working time with AR 3000 L with mowing line head up to 220 min 4) Cordless power system AP System Protection type EN 60 529 IP20 Complete set with ear protection High quality helmet set for safe working