Wherever there’s a need for a simple, user-friendly, one-pass cleaning machine 1840 will be sure to match, or exceed, your expectations. With the total freedom of 24V battery, cable-free, operation, TTB 1840 G machine will get into areas and places that other machines simply will not go. It comes fitted as standard with our suitcase style 18 amp sealed gel battery pack. An optional second battery will allow extended performance, up to 1.5 hours.