Based on this product's specifications, here are some alternatives and similar models
Rechargeable camera battery AgfaPhoto BL-5B (replacement for BL-5B) 3.7V / compatible models
Summary description:
AgfaPhoto Battery ABL5B is a rechargeable lithium-ion camera battery matching the BL-5B specification. With a nominal voltage of 3.7V, it serves as a replacement power source for cameras and compatible devices that accept BL-5B-type cells. It provides portable power for photography sessions, travel and everyday use, enabling continued device operation and simple battery swaps.