High-Performance Replacement Battery for Lenovo Yoga C740 & IdeaPad 4G Laptops 100% Compatibility Perfectly fits Lenovo Yoga C740-14IML (81TC Series), IdeaPad 4G 14Q8C05, and other models (see full list below). Brand New, Grade A Li-ion Cells Ensures long lifespan, safety, and reliable power (no used/refurbished cells). Certified Safe Complies with CE, FCC, RoHS standards for worry-free use. Extended Runtime 51Wh capacity 7.72V voltage 4 cells Delivers 1.53 hours of usage per charge (varies by laptop settings). Precise Fit Matches original part numbers: L18M4PE0, L18L4PE0, 5B10W67296, 5B10U40209, 5B10W67185, 5B10U40210.