18v4ah rechargeable battery thanks to its 18v4ah rechargeable lithium ion battery the multibrush li on offers a high degree of flexibility and a level of comfort as it requires no electric cables a running time of 30 to 40 minutes is possible and enables continuous work without long interruptions the accu brush can be used to work on stone and wood surfaces as well as for the cleaning of joints and edges this multitalent comprises a drive unit which can be deployed for the most diverse t