Item:Brand new Sanyo Scp-3100 Cell phone battery.Lithium Ion 850 mAhThis battery was order to replace my original cell phone battery.I found it by web searching the phone manufacturer and phone type.Amazon.com was the first to list the battery and ordering was easy.It arrived in 3 days and was exactly what I ordered and fit the phone perfectlyI installed it immediately and it worked then I gave it a full charge and it has been doing great.I would recommend this site to purchase replacements in the future.