CMP 5200mAh X200 Battery for Lenovo IBM Thinkpad X201 X200S X201S X201i Series, Fits 42T4534 42T4536 42T4835 42T4647 (Cycles Charge > 800 Times)

hi this is sarah dubois with laptop battery express this 6 cell lenovo battery is rated at 5200 milliamp hours or 58 watt hours and will give you about 2 to 3 hours of runtime depending on your energy use the mah or milliamp hour and the whr 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 instrument's computer chip and are never used or refurbished if you're finding less expensive batteries online 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 guarantee and a full 12-month warranty all of our batteries shipp