I had the Bormann Pro BBP3980 with a 10cm blade and due to poor usage, all the gears wore out and it wasn't worth it for me to fix it... at least, that's what an authorized representative told me.... As a replacement for the first one, I got this specific model, because I had already bought extra Bormann batteries, which would go to waste if I chose another brand, while I was told that the model I already had is no longer available..... So, I was suggested this newer model, which turned out to be a dud..... it takes a long time to start, the chain comes off, it's not as agile as the previous one... in short, if I had thought about it a bit more, I would have preferred to fix the old one or switch brands.