Based on this product's specifications, here are some alternatives and similar models
EnerGenie BAT-12V4.5AH UPS battery Sealed Lead Acid 12V 4.5Ah
Summary description:
The EnerGenie BAT-12V4.5AH is a sealed lead acid UPS battery with a voltage of 12V and a capacity of 4.5Ah. Weighing 1.47 kg and measuring 80 mm in width and 107 mm in height, it is designed for reliable power backup solutions. Ideal for various applications requiring stable energy supply.