Prior to this, Makita worked 9 years without maintenance. It is this model that is suitable for furniture collections, they are warm and do not need a large load. Batteries don’t work in the cold, they run out of steam very quickly in the summer. If you want a lithium one, get a larger capacity and to sit comfortably in your hand, now there are a lot of them . And take a bar with 15 screws screwed in. Unscrew it with a new screw, the cartridge didn’t relax, it’s fine. I bought and Test it right away while you can return it if you don't like it.