hello looking to buy a few new batteries. dvd or lap top style.light and small. lithium not lead. 12 volt and 9 volt. switchable is ok. anyone see anything around or online. i see the same old thing for 50-60 dollars at kmart,sears,radio shack,best buy,etc.. but im looking for something that has at least 6,000 and up mah. so i can run 10-12 hours non stop. any hep or suggestions please email me directly.tbone1965@earthlink.net thanks in advance