Bavvo Battery Compatible with Acer um08a31 um08a41 um08a51 um08a52 um08a71 um08a72 um08a73 um08a74 um08a75 um08b31 um08b51 um08b52 um08b71 um08b72 um08b73 um08b74, Black

hi this is Sarah do voice with laptop battery express this three cell Acer battery is rated at 2200 milliamp hours and will give you about 2 to 3 hours of runtime depending on your energy use the mah or milliamp hour rating indicates how long a 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 are never used or refurbished all our 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's because they use cheap quality power cells inside the cartridge that can easily wear out in 6 months all of our batteries ship from the United States and all shipments placed by 6 p.m. Eastern Time shipped the same day if you're unsure whether or