Garage Door Opener Battery Replacement
Are you hearing a beeping in your garage? That usually means that either the power has gone off to your garage or house and the garage door opener is running on its battery only. That will be OK. The door will work slower than normal until the power is back on.
If the power is on and you still hear the beeping. It may mean that the rechargeable battery in the opener has failed and may need replacement. It recently happened to me after 4 years here. I did some research and was able to replace the battery with reasonable ease. While there is a chance that your opener may be a different model, it is probably a Lift Master brand. You will need to use a ladder and some tools to replace the battery.
If you are not comfortable with that you should seek assistance.
Better safe than sorry.
I bought a replacement rechargeable battery at Batteries Plus Bulbs and picked it up at one of their stores. A replacement battery can also be bought online from various sources.
My original battery looked like this.

My replacement battery looked like this.

Here is a link to a YouTube video that covers the replacement of the rechargeable battery.
https://www.youtube.com/watch?v=mLEQMejxZPc
If you would like some additional information, let me know and I can try to help you.
Bill Lannigan
973-568-7695
lannigan810@gmail.com