MaintainlySafety
How often should you check a home battery?
Check the home battery once a year. The commonly recommended range is yearly, or as the installer's warranty requires. Blocked ventilation, stored clutter and ignored fault codes are what turn a battery fault into a fire. This is a safety-critical task, so do not let it slip.
Home batteries are sealed units that manage themselves, and the owner should never open one. What the owner can do is keep the space around it clear, notice fault codes early, and make sure the warranty conditions are being met.
Why does checking your home battery matter?
Blocked ventilation, stored clutter and ignored fault codes are what turn a battery fault into a fire.
What happens if you skip checking your home battery?
Batteries need free airflow to stay cool. Clutter stacked against the unit, a blocked vent or an ignored fault can shorten its life, and in rare cases lead to overheating. Missing an installer service can also void the warranty.
How do you do it?
- Clear the space around the battery. Keep the clearance the manual specifies, usually tens of centimetres, and move anything flammable such as cardboard, fuel cans or paint.
- Check the app and the unit for faults. Look for fault codes, capacity warnings and whether the battery still reaches full charge on sunny days.
- Confirm firmware updates are installing. Most batteries update over the internet. A battery that has been offline for months may be missing safety updates.
- Look for heat, swelling or smells. The casing should be intact and not unusually hot. Any swelling, hissing or chemical smell means switch off at the isolator if safe and call the installer.
- Check the warranty terms. Note whether the maker requires servicing at set intervals, and keep the installation certificate and invoices in the vault.
What does it take?
How do you know checking your home battery is overdue?
- A fault code or offline status in the app
- Capacity dropping faster than the warranty allows
- Clutter stored against the unit
What do people get wrong?
- Storing garden fuel or paint next to the battery
- Letting the internet connection lapse so updates and monitoring stop
When should you stop and call someone?
Immediately for swelling, heat, smoke, hissing or a chemical smell. For any repeated fault code, use the installer.
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Get the free appDoes this differ in the US, UK, Australia or Canada?
United States
Many local fire codes set rules on where batteries can be installed; ask the installer before moving one or building around it.
United Kingdom
Use an MCS or manufacturer-accredited installer for servicing so the warranty remains valid.
Australia
Installations follow AS/NZS 5139, which restricts installation in living areas; do not store items in the clearance zone.
Canada
Keep batteries in garages or utility rooms within the temperature range in the manual; very cold garages reduce capacity.
Common questions
Why does checking your home battery matter?
Blocked ventilation, stored clutter and ignored fault codes are what turn a battery fault into a fire.
What happens if you skip checking your home battery?
Blocked ventilation, stored clutter and ignored fault codes are what turn a battery fault into a fire. Skipping it does not usually fail immediately, which is exactly why it gets forgotten: the consequence arrives months later as a repair bill rather than as an obvious fault.
Does checking your home battery differ by country?
Universal. Warranties often require installer servicing at set intervals; keep the invoices in the vault.
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