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Módulo 10 de 10 160m 15 exam Qs

Battery Backup, Remotes & Customer Education

Battery backup testing and replacement, remote battery care, photo eye owner maintenance, safety label legibility, and customer service communication.

  • Test and replace battery backup systems in garage door openers
  • Maintain remote controls, light covers, and light bulbs
  • Inspect safety labels and lock mechanisms
  • Educate customers on basic owner maintenance tasks
  • Communicate service findings and recommendations professionally

Lección 1

Battery Backup Testing & Replacement

Battery Backup Systems

Many modern garage door openers include a battery backup system that allows the door to operate during power outages. This is required by law in some jurisdictions (notably California since 2019) and is a valuable safety feature for all installations.

The backup battery is typically a 12-volt sealed lead-acid or lithium-ion battery housed inside or attached to the opener power head. When AC power fails, the opener automatically switches to battery power and can typically operate the door 10 to 20 times before the battery is depleted.

12V
Typical Battery Voltage
10-20
Operations on Full Charge
2-3 yrs
Battery Replacement Interval

Testing the Battery Backup

During maintenance, test the battery backup system:

1
Unplug Opener
Disconnect AC power from the outlet
2
Activate
Press the remote or wall button to operate the door
3
Observe
Door should open and close normally on battery power
4
Reconnect
Restore AC power and verify charging indicator

Battery Replacement

Replace backup batteries every 2 to 3 years or when the opener's battery status indicator shows a low charge. Use only the manufacturer-specified battery type and capacity. After replacement, verify the charging circuit is functioning by checking the charge indicator LED.

California Battery Backup Law

Since July 1, 2019, California law (SB-969) requires all new residential garage door openers sold or installed in the state to include a battery backup. This is a common exam topic for technicians working in or supplying to California markets.

Key Takeaway

Test battery backup by disconnecting AC power and operating the door on battery. Replace batteries every 2 to 3 years or when the charge indicator shows low. California requires battery backup on all new residential openers since July 2019.