I looked at the brochure before I went and looked at it and asked him about the HP again he said it was 330 HP but to be honest I don't think he is certain. I am OK with it being the 300 HP. One thing I noticed is he started the generator when he put the driver slide out he said that one was heavy and draws the battery down. In the add it said it has new batteries. Is this something that is normal? It did not have any problem going in and out no noise that sounded not normal. How much are slide motors if they need to be replaced?