Do I Need A Backup Battery For My Garage Door Opener

It is a common question in Perth, especially after a storm knocks out the power. A backup battery is a small 12 volt unit that keeps your garage door opener running when the mains supply fails. It is not required by law in Australia, but for many homes it is a handy upgrade. The second section shows how to open the door by hand if you skip one.

How A Garage Door Battery Backup Works

A garage door battery backup sits inside the motor housing and provides standby power the moment an outage occurs. When the mains power fails, the opener switches to the battery automatically, so the door keeps operating as normal. Most door openers provide a status light, and a red light indicating a fault, or an orange or red light, means the battery needs attention. A fully charged battery gives around 20 cycles before it needs a recharge.

What Happens In A Power Outage Without One

Without one, a door opener without backup simply stops when the power goes out, and in a longer power failure that can leave your car trapped inside. Your remaining option is to open your garage door manually. Pull the red emergency release cord, which trips the release mechanism and disengages the trolley, so you can operate the door by hand and manually lift it along its vertical track. If you forget to reconnect afterwards your garage is no longer secure, a real security gap. Older doors may also have a steel bar lock to release first.

Do You Actually Need A Backup Battery

For some households it is close to essential, for others a nice to have. It is the best choice if the garage is your main way into the house, if anyone at home would struggle to manually lift a heavy door, or if you live somewhere prone to storms and outages. With easy side access and reliable power, an optional backup battery is more of a precaution.

Which Openers And Brands Support A Battery

Many brands now build this in. LiftMaster’s Professional Series models, along with Chamberlain, Merlin, B&D, Steel-Line, Genie and many other types of opener, offer a battery as standard or as an add on. One of the more interesting features on newer smart units is a beep and a light, so you hear about a low battery early. No single one brand has a monopoly, so check whether your present door opener supports a battery before buying accessories. If in doubt, the best approach is to ask us.

Battery Life, Charging And When To Replace It

A backup battery is low maintenance, but it will not last forever, so watch the battery closely. Most last one to two years, then need a simple replace. The clearest signs are a warning beep, an orange or red light on the motor, or a door that runs slowly on battery. When you notice these, replace the unit promptly. Many homeowners forget until the power fails, so a quick diary note each year helps.

What A Backup Battery Costs

Cost is usually modest. Adding a retrofit backup battery to an existing opener runs around 200 to 300 dollars, while a built in battery adds roughly 100 to 200 dollars over a standard model. Against being locked out when an outage happened at the worst moment, most homeowners see it as well worth it. We are happy to quote before anything is installed.

Frequently Asked Questions

More questions we hear from Perth homeowners.

How Long Does A Garage Door Backup Battery Last In A Blackout?

A fully charged battery usually powers around 20 open and close cycles, or about a day of standby power. Once it runs down, you can still open the door manually with the release cord.

How Do I Open My Garage Door During A Power Failure Without A Battery?

Pull the red emergency release cord to disengage the trolley, then lift the door by hand. Remember to reconnect the trolley afterwards, or the door is no longer secure.

How Often Should I Replace The Backup Battery?

Most backup batteries last one to two years. When you hear a regular beep or see an orange or red light on the motor, replace the unit as a simple precaution.

Is A Backup Battery Worth It In Perth?

For storm prone or single access homes, yes. It is a low cost way to be sure a power outage never leaves you locked out.

Never Get Locked Out: Talk To Slide & Glide

So, back to the big question. A backup battery will not change how your door works day to day, but the moment the power fails you will be glad it is there. For many Perth homes, especially through storm season, it is a small, smart precaution.

Our team has spent more than 12 years installing, upgrading and repairing garage door openers across Perth, and we are proud Australian Garage Door Association members. To add standby power, contact Slide & Glide on 0489 266 468 or info@slideandglide.com.au for a free quote, or visit us at Unit 3A/8 Hasler Road, Osborne Park. We will match the right unit to your door and fit it properly.