Can the sealed Battery be replaced? Can We buy a new Battery and whats its cost? AC/DC Charger = whats it cost? DC/ recharge Power Cord = whats it cost? Inverter Power Cord, and Lantern Extention Cord = whats it cost? We had a Vector Power City we got from a friend and its missing thoes Items, All But the Battery Don't Know if its good or not no way to power it up as all the cords are missing. I Think this is a Veco 29 ac.