If your garage door opener was installed before July 2019, it doesn’t have a battery in it. That’s been fine for 20 years. But during the 2024 fire evacuations across North County, I got dozens of calls from families who couldn’t get out of their garage when SDG&E cut power.
That’s exactly why California changed the law — and why I push everyone to upgrade, even when they don’t have to.
The law in plain English
California Senate Bill 969 took effect July 1, 2019. The short version:
- Every new garage door opener sold or installed in California must include a working battery backup.
- The battery has to allow at least one full open-and-close cycle during a power outage.
- The law applies to replacements, not just new builds. So if I install a new opener at your house, it has to be battery-backed.
Existing openers are grandfathered — you don’t have to replace yours if it still works. But once it dies, you can’t put another non-battery model in. Code is code.
What the battery actually does
The battery is small — about the size of a brick — and sits inside the opener housing on the ceiling. When power goes out, the opener switches over without you noticing and keeps running.
Typical specs on a healthy battery:
- 20+ full cycles on a charge (open + close = 1 cycle)
- 3–5 year lifespan before it needs swapping
- Auto-charges when grid power is back
- Status LED that warns you when it’s dying
Without it, your options during an outage are: pull the red emergency release, lift the door manually, and then deal with re-engaging the trolley once power’s back. Doable on a normal door. Not doable on a 300-lb wood door, and not doable for older homeowners or anyone with a back injury.
MyQ vs HomeLink — what’s the difference?
These are the two smart-control systems people ask about most. They’re not competing — they do different things.
MyQ is Chamberlain/LiftMaster’s app and cloud platform. You install the MyQ Wi-Fi hub or buy an opener with MyQ built in (most LiftMasters since 2018), and you can:
- Open and close the door from anywhere with your phone
- Get notifications when it opens or closes
- Set schedules (auto-close at 10pm if left open)
- Grant access to family or contractors
- Integrate with Amazon Key for in-garage delivery
MyQ used to require a $1/month subscription for some features. As of 2025, basic control is free; Key for Business and a few advanced features are paid.
HomeLink is the system built into most cars (Toyota, Honda, Ford, BMW, most others). It lets you press a button on your visor or rearview mirror to open the garage door, without using a separate remote. Two-way: your car knows when the door is open.
Newer HomeLink (Gen 5+) talks directly to MyQ-equipped openers wirelessly. Older HomeLink needs to be “programmed” to the opener using your handheld remote.
You can have both. Most people do.
Which opener to get
For most North County homes in 2026, I install one of three:
- LiftMaster 8550WLB — belt drive, ¾ HP DC motor, MyQ Wi-Fi built in, battery backup included, HomeLink-compatible. ~$575 installed. The default.
- LiftMaster 8500W — wall-mount jackshaft (mounts on the wall next to the door instead of the ceiling). Frees up overhead space. Same smart features. ~$725 installed.
- Chamberlain B6753T — same guts as the LiftMaster for less money. ~$485 installed. Less robust warranty.
All three meet California code. All three work with HomeLink. All three have MyQ.
What battery backup doesn’t do
Two limitations worth knowing:
- It won’t power the door indefinitely. ~20 cycles, then it’s dead until grid power returns to charge it. Long multi-day outages, you’ll eventually run out.
- It doesn’t fix structural problems. If your spring is broken and the door is unbalanced, the battery can’t pull a 250-lb dead weight. Battery backup is for when the door is working but the power isn’t.
Should you upgrade now?
If your opener is from before 2019 and you’ve thought about replacing it “eventually,” 2026 is the year. Here’s why:
- Wildfire-related outages are now annual, not rare
- SDG&E does planned Public Safety Power Shutoffs during high-wind events
- Insurance companies are starting to ask whether you can shelter in place during outages
- A new code-compliant opener costs $500-ish and lasts 15–20 years
Quick check: pop the cover off your opener. If you see a battery the size of a paperback book inside, you’re good. If you don’t, you’re pre-2019.
I keep batteries in stock for the most common LiftMaster, Chamberlain, and Genie models. If yours is dying but the opener itself is fine, that’s a $90 part and 20 minutes of labor.
Call before fire season picks up. Last September I was booked three weeks out.
Got a problem like this?
Call Mike directly. Most repairs done same-day.