Panasonic Notebook Battery - Li-Ion - 9300 mAh (CF-VZSU83U)

hi this is Sarah - voice with laptop battery express this nine cell Panasonic battery is rated at 6600 milliamp hours or 73 watt hours and will give you about 3 to 4 hours of runtime depending on your energy use the mah or milliamp hour and the W HR or watt hour indicates how long a battery will run on a charge the higher the milliamp hour and watt hour number the longer the battery will run all of our batteries are brand new with Samsung Power Cells a Texas Instruments computer chip and are never used or refurbished if you're finding less expensive batteries on line please be aware that it's because they use cheap quality power cells inside the cartridge that can easily wear out in 6 months our batteries typically have a service length of three to five years all batteries from laptop battery Express come with a 30 day money back gaurantee and a full 12 month warranty all of our batteri