BTI L20M4P75-BTI 15.52V 90.1WHR LI-ION BATTERYThe BTI L20M4P75 BTI 15. 52V 90. 1Wh Li ion Battery is a purpose built replacement power solution for Lenovo ThinkPad P1 Gen 4 notebooks and the X1 Extreme Gen 4 family. This four cell, high energy density battery delivers substantial runtime without compromising the sleek profile of modern ThinkPad laptops. Engineered to mirror OEM electrical specifications, it provides stable voltage, consistent discharge characteristics, and reliable performance
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