APC Back UPS ES 700.VA 230 volt takes a 12-volt 9-amp battery. https://www.se.com/nz/en/product/BE700G-AZ/apc-powersaving-backups-es-700va-230v-8-australian-as-3112-outlet-4-surge/

This APC Back-UPS offers power and surge protection for wireless networks, computers, gaming consoles and other electronics in your home or business. The 700VA floor/wall mount UPS has 8 total outlets, 4 of which are battery backup and surge protection, and 4 that are surge protection only. It has a surge energy rating of 310 Joules. The UPS has a surge energy rating of 310 Joules and provides data line protection with a RJ45 analog phone line for phone or fax or modem or DSL. Its dimensions are 8.9 x 22.4 x 31.1 cm and 6.93 kg. The Back UPS range supplies battery backup power during outages and unsafe voltage fluctuations, as well as protection from damaging surges and spikes - perfect for wireless networks, gaming consoles and other electronics.