Used 18RY Kohler generator. it is 4 lead 120/240 1ph only. It is lp gas can be changed to nat gas. This generator is in great shape. We sold this one new and has been under our service plan since new. It was in a telephone office locally and if it need fixing it was done. The battery does not go with the generator. there is no charge to load the generator. It must be paid with in 7 days of the auction close and pick up no later than 3 week from end of auction.