A Roomba needs to have its battery replaced once every few years. If this is your first time, relax, we’ve got your back. Here’s everything you need to know about a Roomba’s battery, including how to remove and replace the battery from a Roomba properly. So get your Roomba ready and let’s get started.

How Many Years Does a Roomba Battery Last?

When we first started using the original Roombas (before 2010), the batteries would not last a year and we never had any luck with replacement batteries. Worse of all, the batteries cost one third of the original unit. Thankfully, Roombas have evolved over the years and now have better battery performance.

How many years does a Roomba battery last? Generally, a Roomba battery can last between 2 to 4 years if you are using the Roomba at least once per week and keeping it plugged in when not in use. Because it is powered by a rechargeable battery, use a Roomba frequently to deliver more cleaning jobs.

1. How often to replace a Roomba Battery?

How often do you replace a Roomba battery? Ideally, you should replace a Roomba battery once every 2 to 4 years. According to iRobot, a Roomba battery can be charged up to 400 times, which translates to about 2 to 4 years of usage. As long as you maintain the Roomba, it should last as long as it should.

If your Roomba is experiencing a charging error, please troubleshoot it using our guide right here. 

2. How do I know if my Roomba battery needs a new one?

If your Roomba has not been coming home every night, relax, your little buddy is not having an affair. Your beloved Roomba is just tired and worn-out. You can breathe new life into your Roomba by replacing the battery with a new one. With that said, you should replace the Roomba’s battery if you notice:

• The Roomba continuously failing to return to the charging station
• The Roomba dies randomly in the middle a room
• The Roomba forgets its schedule repeatedly
• The Roomba acts sluggish

If you encounter those problems, your initial response may be to reset the Roomba. In most cases, a simple battery replacement should do the trick. Thanks to the gifted engineers at iRobot, replacing a Roomba battery only needs a screwdriver and less than 5 minutes of your time. Here’s how to do it...

How to Change a Roomba Battery:

Remember, a Roomba may not charge if the battery is not placed properly, so it’s best to learn how to change a Roomba battery the right way. Because there are several different Roomba models, the steps may vary slightly. Here is the simple step-by-step guide based on the Roomba series:

Replacing Battery From the Roomba 600 Series:

To remove the battery, start by turning the Roomba upside down. Using a Phillips-head screwdriver, remove the side brush first, then loosen the four screws that secure the bottom cover. Once the four screws are removed, lift the bottom cover. You now have access to the Roomba’s battery. 

Once you have access to the battery, remove the old battery and place the new battery in your Roomba, with the iRobot logo facing up. Place the bottom cover back on and tighten the four screws. To finish, replace the side brush and tighten the screw. The Roomba will reboot itself and will be ready to go.

After replacing the new battery, the manufacturer, iRobot, recommends you to charge the Roomba overnight.

Replacing Battery From the Roomba 700, 800, and 900 Series:

Thanks to the separate battery door, the battery is easier to replace. To remove the battery, start by flipping the Roomba over. Using a Phillips-head screwdriver, loosen the two screws that hold the battery cover in place. Once the two screws are removed, lift the battery cover. You now have access to the Roomba’s battery. 

Once you have access to the battery, remove the old battery and insert the new battery in your Roomba, ensuring the iRobot logo is facing up. Finally, replace the battery cover back on and secure it with the two screws. There is no need to replace the side brush. The Roomba will reboot itself and will be ready to go.

After replacing the new battery, the manufacturer, iRobot, recommends you to charge the Roomba overnight.

Replacing Battery From the Roomba i Series:

To remove the battery, start by turning the Roomba upside down. Using a Phillips-head screwdriver, remove the side brush first, then loosen the five screws that secure the bottom cover. Once the five screws are removed, lift the bottom cover. You now have access to the Roomba’s battery. 

Once you have access to the battery, press the release tab to remove the battery. Place the new battery by aligning the channels of the battery with the channels of the robot, and click the battery into place. Replace the bottom cover back on and tighten the five screws. Replace the side brush and tighten the screw.

To finish, place the Roomba on the charging station to wake up the Roomba. It is recommended to charge the Roomba overnight after replacing the battery.

Replacing Battery From the Roomba s Series:

To remove the battery, start by turning the Roomba upside down and place it on a flat surface. Using a Phillips-head screwdriver, loosen the six screws that secure the bottom cover. After the six screws are removed, lift the bottom cover. There is no need to remove the side brush on the Roomba s Series.

Once you have access to the battery, loosen the screw that secures the battery. Remove the battery by pulling on the pull tabs gently. Insert the new battery by carefully aligning it with the battery well. Tighten the battery screw, then reinstall the bottom cover back on and tighten the six screws to secure the bottom cover. 

After replacing the new battery, the manufacturer, iRobot, recommends you to charge the Roomba overnight.

Final Words

And there you go, everything you need to know on Roomba batteries, including how to remove and replace a Roomba battery. With Roombas getting more and more advanced over the years, you shouldn’t worry too much about the battery performance, as most of them can last more than a few years. 🙂

You may also want to read our comparison reviews:

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• Roomba 675 vs. 960
• Roomba e5 vs. i3
• Roomba i3 vs. 675
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• Roomba 614 vs. e5