Hi , this power pac has been sleeping in the attic since the late 70's . I think I bought it to run my mobile cb in the house but ended up buying a base station and never used it . PLEASE see the pictures , I turned it on and it put out a little over 13.80 volts on my meter . It does have a couple of bug bites and has a foot missing . One thing I can tell you is that its " HEAVY " compared to the chinese clunkers made today . Sold as is no returns . Thanks .