Our site has the most high performance IBM Lenovo laptop batteries on the market. Every Lenovo power sources is manufactured with lithium ion cells like the original. Our laptop replacement batteries cost less, but exceed or match your original battery. Find your IBM laptop below or if you have questions contact us and we'll help you find the exact battery for your IBM laptop. All of our products include a 30-day guarantee; return it for any reason within 30 days for your money back. Also, when you buy a laptop battery you get 1 year replacement protection. If your IBM laptop battery malfunctions during the first year we’ll replace it free.