The Lenovo ThinkPad Battery 61+ (Part Number: 4X50M08811) is a 6-cell lithium-ion battery with a capacity of 48 watt-hours, designed to provide extended power for various ThinkPad models. It’s compatible with laptops such as the ThinkPad T470, T480, T570, T580, P51s, and P52s, among others. This battery ensures reliable performance and is ideal for users needing longer unplugged computing time. As of February 2025, availability may vary, with some retailers listing it around $113. citeturn0search3
