Karcher 2.633-123.0 Premium Plus Window Vacuum Battery For Models WV5 WV10 Power Tool Centre Proudly Offers Genuine Karcher 2.633-123.0 Premium Plus Window Vacuum Battery For Models WV5 WV10 Genuine Karcher WV5, WV10 replacement / additional battery The Additional / Replacement WV 5 Battery is the perfect edition to provide even longer continuous cleaning, combining both batteries will allow up to 70 minutes of perfect streak-free results. Simply unclick the battery from your WV 5 and click the second battery back into place. The additional battery can also be used in conjunction with the WV 5 charging station, allowing you to store and charge both your Window Vac and the spare at the same time. Uninterrupted cleaning - Both batteries provide up to 70 minutes of .