Installing a solar battery isn’t just about finding an empty spot. Where you place the battery can affect its safety, performance and lifespan.
The good news is that there are several suitable options — provided the location meets Australian installation requirements and the battery manufacturer’s specifications.
Garage: Often a practical choice
A garage can be a good location because it provides protection from direct sunlight and harsh weather.
However, the battery still needs appropriate clearance and must not obstruct safe access or be positioned too close to certain openings, appliances or other restricted areas. Recent updates to AS/NZS 5139 also clarify some requirements around garage openings.
Wall-mounted: Great when space is limited
Many modern lithium batteries can be mounted on a suitable wall.
The wall and surrounding area need to meet the relevant fire-safety and clearance requirements. If there is a habitable room on the other side of the wall, additional non-combustible protection may be required.
Outside: Possible, but location matters
Some batteries are designed for outdoor installation. If yours is, it should be protected from direct sunlight, excessive heat, water ingress and physical damage.
An outdoor location with shade and good airflow can be suitable, but simply putting a battery against an exterior wall isn’t automatically acceptable.
So, which is best?
There isn’t one universal answer.
A good battery location should be:
- Protected from direct sun and extreme temperatures
- Away from water and potential impact
- Easily accessible for maintenance
- Clear of restricted areas and required safety distances
- Suitable for the specific battery model
- Installed by a qualified and accredited battery installer
Your installer should assess the property and choose the location based on the battery, building layout and current Australian requirements — rather than simply installing it wherever there is available wall space.
Not Sure Where to Install a Solar Battery?
Deciding where to install a solar battery affects its lifespan, performance, safety and even your warranty, so the location deserves as much thought as the brand. Book a solar battery installation site check and we will assess your garage, walls and outdoor areas for heat, clearances and cable runs. It is also worth reading our guide to solar battery safety in SA and NSW so you know what a compliant install looks like. The right spot keeps your battery cooler, safer and easier to service. Get it right the first time and avoid costly moves later.


