9 Cell Replacement for Dell Laptop Battery 312-0429 Inspiron 9200 U4873,Y4873

hi this is Anthony de pinna with laptop battery Express this 9 cell dell replacement battery is rated at 7800 milliamp hours and will give you about 3 or 4 hours of runtime depending on your energy use the mah or milliamp power rating indicates how long the battery will run on a charge 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 all batteries from laptop battery Express come with a 30 day money back gaurantee and a full 12 month warranty 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 6 months all of our batteries shipped from the United States and all air shipments placed by 6 p.m. Eastern Time shipped the same day if you'