Battery: 24V 40 Ah gel battery (4)Broom Material: SyntheticCharger: On-BoardDust Filter: 99.97% efficient at 3 micronsFilter Material: PolyesterFilter Removal: Tools FreeFilter Shaker: ManualFlaps: Non-markingHopper Capacity: 1.06 cubic feetMain Broom: 16 inNoise Level: 63dbSide Broom: 11 in