Rechargeable Replacement Battery for HC01 Cordless Vacuum CleanerRechargeable Replacement Battery for HC01 Cordless Vacuum Cleaner. 1 Lithium Ion batteries required. Recommended Uses For Product. 8.74 x 3.86 x 2.44 inches. Perfect Compatibility: This replacement battery is specifically designed to fit the VENHIDELY BRUSHLESS MOTOR VACUUM CLEANER HC01 model only, ensuring an exact fit and.