How to Replace a Garage Door Opener Battery
Tips & Tricks

How to Replace a Garage Door Opener Battery

If your garage door is not opening or closing as it should, the battery of your door opener could be dead. If you notice a beeping sound from your door opener or a red indicator light, you need to replace the battery.

How to Replace Your Battery

The garage door opener battery replacement process is not complicated. Here are a few simple steps to follow.

  • Unplug the garage door opener.
  • Open the light lens to locate the battery.
  • With a screwdriver, remove the cover of your battery compartment.
  • When open, pull the battery out.
  • Disconnect the black and red battery wires.
  • Replace the battery with a new one.
  • Connect the wires to the new battery. Ensure you connect the wires to the correct color-coded terminal, i.e., red wire with the red terminal.
  • Position the battery inside its compartment.
  • Secure the compartment cover using a screwdriver and ensure that the wires are not sticking out.
  • Now plug in the door opener.

How to charge the battery

Once you replace your garage door opener battery, you should see a green indicator light. The green flash means that your battery is charging. It would be best if you gave your battery at least 24 hours to be fully charged. When fully charged, the indicator will remain green, though not flashing.

How to test the battery

When it is fully charged, you can proceed to test your battery. To do a test, first, unplug the door opener, then try to open the garage door using the remote or door control. If the battery is working, the indicator will show a solid orange light that means your door uses battery power to operate. If the indicator shows a flashing orange, it is a sign that your battery is running low. You can complete the battery replacement and installation process by plugging back in your garage door opener.

If the battery seems fine, but the door still isn’t opening, maybe your remote control batteries are dead. But this can only be the case if you use a garage door remote. To replace your remote batteries, take out the old ones and replace them with new ones, and then try opening the door to see if it works.

If your door still doesn’t work after replacing the door opener battery, there could be another problem. 

How often should you replace garage door opener batteries?

You should replace a garage door opener battery every one to two years, or when you notice signs like a red indicator light or a beeping sound from the door opener.

Why is my garage door opener draining batteries so fast?

A door opener battery’s life expectancy is 2 to 3 years depending on the usage. If your battery drains so fast, check whether your keypad is lit. You can check at night since it is not easily noticeable during the day. The keypad stays lit for around 20 seconds after you use it, then it shuts off. But if one key is warped and stuck, the keypad will stay lit day and night. This may be why your battery is draining fast.

However, if the keypad is not the issue, the battery could be defective and need replacement.

Common garage door opener battery sizes

The common garage door opener battery size is a lithium-ion battery the size of a coin (button cell) or a 1.5v alkaline battery.


The bottom line, you need your garage door fully functional. Ensure to replace the battery when needed and fix any other issues that may cause it to stop working correctly. However, if you are unsure how to fix some problems, you can call in expert help.

Check this too: Sideways Garage Doors & Opener: Is it Any Better?

To prevent battery damage, ensure it is fully charged and always has power. When you let the power drop under a certain level, the battery will not charge, causing the need for a new one. Also, the door opener battery lasts up to 24 hours. Therefore, you should always ensure to recharge it after 24 hours.