This jumper box has been used once only but with the time lapsed, I'm afraid its now time for a new battery for this box. I bought it new some 10yrs ago to jump my daughter's car and since then its just sat unused. Now it only works when the 120v cord is applied. Everything works, Shows 100% charged with the cord but when I pull the plug, It goes numb...See photos 14, 15 and 16...That's with the cord but without it, Nothing happens so it could only be the battery...I still consider it to be "New" by definition tho! Selling as-is, Asking 50 bucks...don't want to deal with it!