How to replace LiftMaster Garage Door Battery

13th Jun 2016

How to replace LiftMaster Garage Door Battery

Replacing LiftMaster Garage Door Battery is simple process and can be done for less than 10 minutes. If your LiftMaster Garage door system has a battery back up you should replace the battery every 1 – 2 years. As you probably know the function of the battery back up is to keep your LiftMaster garage door working in case of power failure. Your LiftMaster garage door back up is holding the charge in Sealed-lead-acid battery. However the SLA batteries are loosing their capacity over time and after 1 - 2 years of service they are useless.

How to know if your LiftMaster garage door battery is bad:

  • Every LiftMaster back up system has a battery monitoring and if indicates that the battery is bad you will hear a sound signal.
  • Unplug the LiftMaster garage door system from the power and try to open or close you garage door. If the garage door is working but much slower than usual consider battery replacement. If the garage door is not moving your battery is bad already.

How to replace LiftMaster Garage Door Battery

At you can find Replacement battery that is perfect match for your LiftMaster garage door system. Use Coupon code Blog5 and take 5% OFF your next order (the coupon code can be used for every product at

The Replacement Garage Door Batteries you can find at our store are:

You can find Chamberlain Replacement Batteries as well:

Every replacement battery in is with Free same Day Shipping and 1 year Warranty.

All tools you need to change your LiftMaster garage door batteries are:

  • New replacement LiftMaster Garage Door Battery
  • Screw driver
  • Safety protection

1.Unplug the LiftMaster Garage Door Opener from the power.

2.Open the light lens of the garage door opener.

3.Remove the bulb to gain access to the battery compartment.

4.Remove the battery compartment cover.

5.Pull the battery out and wires from the battery.

6.Insert the new battery and connect the wires again – red wire with red terminal.

7.Pull back the battery compartment cover and the bulb.

8.Plug the LiftMaster Garage Door Opener Opener back in the power.

9.On the next (24 hours) the battery should be fully charged and you can test it. Unplug LiftMaster garage door opener from the power and try to open and close the garage door.

If you have any questions don’t hesitate to call us for free: (800) 409 0250.