Lithium ion batteries maximize performance, minimize weight

The lithium ion batteries in Makita’s new BVR450 4-foot cordless concrete vibrator deliver more power with less weight. The company also introduced a flexible shaft version of the vibrator, the BVR450Z as well as two 8-foot versions, the BVR850 and BVR850Z. The 4-foot models weigh just 8.2 pounds and the 8-foot models weigh 11.7 pounds. The short, flexible shaft models deliver 13,000 vibrations per minute while the longer ones crank out 12,500. An ergonomic two-directional switch adds more comfort when holding the vibrators in vertical or horizontal positions. The three amp-hour batteries have a run time of 25 minutes on a single charge.