Based on this product's specifications, here are some alternatives and similar models
Battery Olympus BLX-1 Lithium-Ion 2280 mAh for Camera
Summary description:
The Olympus BLX-1 is a Lithium-Ion battery with a capacity of 2280 mAh designed for cameras. It provides reliable power for extended shooting sessions, ensuring your camera stays operational when you need it most. This battery is compatible with various Olympus camera models, making it a versatile choice for photographers.