Based on this product's specifications, here are some alternatives and similar models
Lead‑acid AGM battery XTREME 12V 3.4Ah (model 82-214#)
Summary description:
Sealed lead‑acid AGM battery XTREME 12V 3.4Ah (82-214#) is a maintenance‑free rechargeable battery designed for backup power, alarm systems, UPS units, small electric devices and portable equipment. It features valve‑regulated AGM construction, 12‑volt nominal voltage and 3.4 ampere‑hour capacity for short‑term power delivery and standby use.