UBatteries Compatible 49Whr Battery Replacement for Sony VAIO VGN-AW, VGN-BZ, VGN-CS, VGN-FW Series Fits Part# VGP-BPS13 VGP-BPS21 VGP-BPL13 VGP-BPL21 - (6 Cell Silver)

the 6l so knee replacement battery is rated at 5200 milliamp hours and will give you about two to three hours of run time depending on your energy use the mah or milliamp hour rating indicates how long the battery will run on a charge so the higher the mah number the longer the battery will run all of our batteries are brand new with Samsung Power Cells a Texas Instruments computer chip and they're never used or refurbished Samsung offers the highest quality Power Cells on the market that meter exceed the quality of the brand-name batteries all batteries from laptop battery Express come with a 30 day money back gaurantee and a full 12 month warranty with the service life of about two to four years if you're finding less expensive batteries on line please be aware that it is because they use cheap quality power cells inside the cartridge that can easily wear out in six months even if the