Replace garage door opener backup battery
Why it matters
CA SB-969 mandates backup power; SLA batteries fail silently after 3-5 years, leaving door inoperable during power outage.
Stop forgetting to do this.
Hearth generates a personalized maintenance schedule so you never miss another replace garage door opener backup battery.
How to do it
- 1
Disconnect garage door opener from electrical outlet.
- 2
Locate battery compartment under garage door opener carriage.
- 3
Photograph battery terminals and connection layout.
- 4
Disconnect black (negative) terminal first using appropriate wrench.
- 5
Disconnect red (positive) terminal.
- 6
Remove old battery from compartment.
- 7
Place new sealed lead-acid battery into compartment.
- 8
Connect red (positive) terminal first, then black (negative) terminal.
- 9
Reconnect opener to power outlet and test backup function.