Review on Powerful And Convenient: Enertwist Cordless Orbital Sander With 20V Max 5-Inch Brushless Random Orbit And 4.0Ah Lithium-Ion Battery by Richard Koh

Super good quality. It's brushless wich makes it quiet. Was able to use in my apartment without bothering the neighbors. I am supposed how long the battery lasts, I was able to get about one and half hours on low and medium speed. Seems to charge back up in the same amount of time.The down side: the seller does not offer more batteries for purchase separately. With 2 batteries this could be used daily on the job. As is, can I only be used on small projects because if break time to charge. Searching other batteries, I haven't found any with the same pin structure and placement as this one. Though the rating is easy to match, this particular system seems proprietary.