The Cordless 4 Ft. Concrete Vibrator Kit (model XRV01T) delivers more run time with maximum vibrations per minute (VPM) for strengthening concrete when running a corded tool is not an option. The XRV01T weighs only 7.7 lbs. with battery, with high vibration and ergonomic features for top performance. The Makita-built motor delivers 13,000 VPM and up to 41 minutes run time under load using a fully-charged 18V LXT® 5.0Ah battery. The 4 Ft. shaft is 1” thick for more effective leveling and removal of air bubbles in concrete