Futurebatt Laptop Battery for Lenovo IBM ThinkPad T40 T41 T42 T43 T40P T41P T42P T43P R50 R50e R50p R51 R51e R52; 92p1011 92p1058 92p1069 92p1073 92p1077 92p1087 92p1091

hi this is sailor Dubois with laptop battery Express this 9 cell IBM 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 life of 3 to 5 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 shipped from th