Based on this product's specifications, here are some alternatives and similar models
Battery for Dell laptops, 56WHr 3-cell, compatible replacement (MPN 451-BCMO)
Summary description:
Rechargeable 56WHr 3-cell battery designed for Dell laptops as a compatible replacement. Provides portable power for typical mobile use, enabling longer runtimes for productivity, browsing and light multimedia. Intended as a direct swap for the specified Dell MPN 451-BCMO, it restores battery capacity and mobility without altering device performance.