Backup Battery for a Garage Door

If there is a power failure in your neighborhood, will you be able to get your garage door opened? If you don’t have a backup battery, then your Linear garage door opener keypad is not going to work and that door is going to need to be manually lifted. If the power outage is due to an emergency, then this could be a problem. You are so used to that door opening at a click of your Linear remote garage door opener, you may not even give a second thought to the fact that it needs electricity to work.


It can take time to get out and open the door. It also is an inconvenience, especially if there are adverse weather conditions, like pouring rain and high wind. So, in order to keep things working at all times, you need a backup battery.

 A backup battery is a small battery that is installed in the motor housing or the Linear garage door opener keypad area. It provides power when the regular electric power isn’t working. It is a standard feature in newer doors within the last 15 years or so.


 A backup battery is designed to provide you with enough power to operate the door for 24 hours. It can usually withstand 20 cycles, which would be one cycle of opening and closing the door. They are also rechargeable, so once you have used the power up, it will recharge, which usually takes a little over four hours. However, these batteries, like all batteries, will eventually wear out and need to be replaced.

 Replacing the Battery

 It is important that you replace the battery before there is an emergency and it is needed. So, how do you know that the battery needs replaced? This is a common question because it’s not like you can look at it to see it is bad. In addition, if you wait to see door operation issues due to a bad battery, it is already too late. Luckily, these batteries are designed to give you a signal when they need to be replaced. They will generally beep, much like a smoke detector. There is also usually a light indicator that will come on.

 These batteries do tend to be expensive, but they are well worth the cost. The actually cost will depend on your style of opener. Generally, you can expect to spend between $50 and $100.

 Important Note

 Generally, you will get the choice of getting a backup battery when you buy your opener, along with the other options, like the type of Linear garage door opener keypad. If you do not choose to get the backup battery, then you will have to learn how to manually open your door. This requires disengaging it from the power system. However, it is important to note that disengaging the door from the power system will leave it unsecure and able to be opened by anyone.

 Making use of your garage door’s backup battery is important. It can really save you time and give you a peace of mind when the power goes out.