High-Performance 11.1V 5000mAh Li-Ion Laptop Battery Replacement for L11s6y01 L11m6y01 Models, Designed for Lenovo G400 Z480 G580 Y480 G480 Y580 G405 Z580 Z485 Notebooks. Featuring a high-capacity 18650 Li-ion cell, this rechargeable black battery ensures long-lasting power and reliable performance. Ideal for professional and personal computing applications, it offers fast charging, extended runtime, and superior energy density, meeting global standards for efficiency and safety in portable energy solutions.More