This Lenovo L13S4A01 battery replaces the original battery found in Lenovo IdeaPad B40, B50, N50 and additional laptops. To make sure you order the correct battery, it should match with the photo above and the part number "L13S4A01" or another part number listed below. The part number is listed on the battery itself.
Laptop Battery Express is a US based business with knowledgeable support staff to assist you before and after the sale. Yes, we have a phone number and real people answer your call! Free technical support is available if you need additional help in diagnosing power problems with your battery, ac power adapter or battery meter software.
This battery carries a full 2 Year warranty and every battery is charged and tested before it ships. We provide a 30 day money back guarantee if you are not completely satisfied. We are so confident in the quality of our batteries, we will pay for any and all shipping expenses if our product fails to perform in the first 30 days you have our battery, even if it is not our fault.