Based on this product's specifications, here are some alternatives and similar models
Rechargeable Battery Pack Panasonic Eneloop 4×AA 4.8V 1900mAh
Summary description:
Rechargeable battery pack Panasonic Eneloop containing four AA (size) cells with a nominal voltage of 4.8V and capacity of 1900 mAh. Designed for repeated use in consumer electronics such as remote controls, toys, cameras, and flash units. Provides stable power output, long cycle life and reduces waste compared with disposable batteries.