Thanks bud Very true - it's probably had more continuous use than a lot of the other tools. My fiance ended up seizing it very early on. Thanks It's just the single 18v. I like it a lot - more than enough power, pretty quiet and I don't have to worry about accidentally cutting the extension cable. Mother in law loves it more than me, she actually wanted to buy one for herself, but I said she could keep mine for a while and we'll swop back and forth. She also loved the vac so much that I got for herself as well.