The TGB4045 is the classic Numatic TwinTec 24V battery model. Features include a Structofoam tilting brush deck, polyform tanks, fully sealed gel batteries, built in battery charger, heavy duty TwinFlo wet pick-up vacuum system and heavy duty geared brush drive. • Fully Sealed Gel Batteries - Maintenance-free batteries to ensure the highest standard of operational life. • Twinflo Vacuum Motor - Provides exceptional wet pick up. • Structofoam Tilting Brush Deck - Making brush and pad changing quick and easy. • Easy Operation - Simple on / off trigger control. • On-Board Charging - Convenient and easy, just plug and go.