Genuine Lenovo Replacement Battery 45Whr for ThinkPad Edge 2-1580 / Flex 3-1580 — Part 5B10K10236

Brand-new, genuine Lenovo battery engineered for ThinkPad Edge 2-1580 and Flex 3-1580 laptops. This 45Whr OEM battery (part number 5B10K10236) provides a direct-fit replacement to restore original runtime and reliability. Factory-tested to meet Lenovo specifications, it offers safe installation and compatibility without modifications. Ideal for replacing worn or failing batteries to return your notebook to proper working order.