A few essential circuits need a different setup from whole-home backup.
Blackout Backup
Best solar battery for blackout backup in Australia
Short answer
The best battery for blackout backup is not just the cheapest battery. It depends on usable capacity, backup hardware, compatible inverter, which circuits stay on, how fast the system switches over and whether the quote includes switchboard work and commissioning.
Backup questions to ask installers
- Does the system support backup at all, or only self-consumption savings?
- Which circuits are backed up: fridge, lights, internet, pumps, medical devices or whole home?
- What is the usable battery capacity during an outage?
- Can the battery recharge from solar during a long blackout?
- Does the quote include gateway, backup box, switchboard work and testing?
What can change the best choice?
Existing inverter and solar size can affect compatible batteries and backup design.
Backup hardware may increase cost, even when the battery price looks competitive.
Backup Quote Request
Prepare a backup battery quote request
Tell installers what must stay on during an outage so they quote the right backup scope.
General planning information only. Confirm backup capability and safety requirements with licensed installers.