Based on this product's specifications, here are some alternatives and similar models
Battery Extralink laptop battery for LENOVO L19C3PF9 4650mAh NB482146
Summary description:
Replacement laptop battery Extralink compatible with Lenovo model L19C3PF9, nominal capacity 4650 mAh (MPN NB482146). Designed as a direct power source for portable computers that use the specified battery model, it restores runtime for mobile work, study or travel. Suitable for users needing a spare or replacement unit to maintain device portability and battery-dependent functionality.