I have like brand new XP 1100 AC power inverter for portable battery. Just two time used ,no any scratch ,no any problem. http://www.dynalite.com/?page_id=428
One battery is used and one is brand new.
Price on-line is between $1400-$1700 + $160 for the battery.
I will sale for $950. The brand new battery is included in price. If you use it is realy amazing. If not, the big problem is you have charge the battery every month. It die after 30-40 days if is not charged. Used normal and charged the battery can stay 3-5 years .