PERFECT FOR 2-IN-1 DEVICES: Specifically engineered for Lenovo 300w 2-in-1 Gen 5, 500w 2-in-1 Gen 5, and 100w Gen 5 series laptops. Please verify your original battery model before purchasing. DIRECT OEM REPLACEMENT: Replaces multiple Lenovo part numbers including: L24M3P74, SB11M89916, 5B11M90115, L24D3P77, L24C3P73. OPTIMIZED CAPACITY: Features a 47Wh / 4156mAh capacity in a compact 3-cell design, balancing performance and the sleek form factor of your 2-in-1 device. EASY INSTALL, BIG SAVINGS: Follow our clear guide for a straightforward DIY replacement, avoiding costly repair shop visits. CONFIDENCE GUARANTEED: Backed by a 30-day refund policy and a full 12-month warranty for a risk-free purchase.