The Karcher cordless ice scraper - easily cleans car windows with plastic blades that rotate at high speed. The blades are specially shaped so they will not damage the glass surface. Blades are replaceable as they wear out and are sold as replacement parts. The compact design allows you to take the squeegee with you on the road and does not take up a lot of space. One battery charge is enough for 15 minutes of uninterrupted work. It takes 3 hours to charge the device.