Based on this product's specifications, here are some alternatives and similar models
Battery D Ansmann 10000 mAh Mono HR20 NiMH
Summary description:
The Ansmann 10000 mAh Mono D HR20 battery features Nickel-Metal Hydride (NiMH) technology, providing a voltage of 1.2 V. With dimensions of 33 x 61.5 mm, it is designed for high-capacity applications, ensuring long-lasting power for your devices. Ideal for use in high-drain devices, this battery offers reliable performance and is rechargeable, making it an eco-friendly choice.