Futurebatt T430 Laptop Battery fit Lenovo ThinkPad 70+ T410 T420 T420i T430 T510 T520 T530 W510 W520 W530 L412 L420 L430 L512 L520 L530, fits P/N: 0A36303 45N1001 0A36302 42T4791 45N1011 45N1005

hi this is Sarah Dubois with laptop battery express this 9-cell Lenovo battery is rated at 7800 milliamp hours or 87 watt hours and will give you about three to five hours of runtime depending on your energy use the mah or milliamp hour and the whr or wat our indicates how long a battery will run on a charge the higher the milliamp hour and wat our 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 six months our batteries typically have a service life 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 batteries sh