How Long Does a Roomba Battery Last

There are different reasons why you’ve asked the question “how long does a  Roomba battery last” as a new user or you are planning to get one but you need to know how long the battery can last before you forge ahead to go get yourself one of the home cleaning vacuums.

You could be in a state of shock when your Roomba battery isn’t lasting as long as you wish or the battery seems to be draining quickly.

These rapid drains could be caused by a variety of errors on your part, but the battery has an expected runtime.

How Long Does a Roomba Battery Last

Your Roomba is supposed to last for 2 hours after a full charge. And it should last for 400 charge cycles before it reaches the end of its life. So, in short, your Roomba has 400 charge life cycles.

However, you could end up making that time shorter when you don’t take care of the battery or you expose the battery to extreme temperatures too frequently.

That being said, I will be breaking down the different things you can do to maximize your Roomba battery life.

How to Maximize the Roomba’s Battery Life

how long does roomba battery last"

Now that you know “how long does a Roomba battery last“, here are the things you have to do if you want to maximize the battery life of your Roomba vacuum cleaner.

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Fully Discharge the Battery before Recharging

One thing I discovered about batteries was that you have to drain them before charging them.

If you charge it every time there is a voltage dip, you are killing the battery life.

You don’t have to worry about it if you’ve been doing it; you can start changing all that starting today.

But how can you know when the battery is completely depleted? It’s simple: when the battery runs until it stops, the battery has been entirely discharged, and you can now fully charge it before using it again.

That being said, if you want to have a long battery life, you must ensure that the cycle of draining the battery before charging it is continuous.

Store in a Cool Dry Location

Saying this shouldn’t be new to you because it applies to all batteries. Batteries are primarily made up of chemical combinations that require a specific temperature to function properly.

If the temperature is high, it may affect how long the battery will last. Since you have a Roomba battery, one thing you should know is that you should keep your battery away from hot temperatures.

For example, you should not charge your battery in direct sunlight or close to a heating vent.

That being said, the battery should be kept away from heat-emitting equipment and appliances because heat is known to cause battery damage, so keep it in a cool spot.

Clean the Brushes

The brushes are another frequently overlooked component of a Roomba vacuum. If the brushes are clogged, more power is expended, resulting in power waste while doing very little work.

If you want your battery to last as long as possible, it is advised that you clean the brushes.

Keeping the brush unclean over time will shorten the overall shelf life of the Roomba vacuum. To avoid this, you should clean the brushes on the Roomba batteries at least once a week.

That way, you may be certain that your battery will last a little longer.

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Switch to “Vacation Mode” when not in Use

If you’re going on a trip and won’t be using the battery for a while, turn on vacation mode.

This is a reliable way to keep the battery in good condition.

How are you going to do that?

Charge the battery until it is completely charged, then remove it by releasing the screws that hold the battery door closed.

After you’ve removed the battery, keep it somewhere cold and dry, away from the unit.

When you return from your trip, simply use the vacuum until it runs out before charging it again.

Use the Battery Often

This may surprise you, but regular use of your Roomba extends its battery life. When not in use, make sure it’s fully charged.

A frequently charged battery will improve its staying time over time; nevertheless, you must maintain the cycle of using and charging it to improve your battery’s staying time too.

How can I tell if the Battery in my Roomba is Faulty?

how long does roomba battery last

There are a lot of red flags to look out for when using your Roomba vacuum cleaner. Some of these red flags could mean the Roomba is faulty, while some of them could mean the battery needs to be replaced.

But how will you be able to easily identify these to determine that the battery needs to be changed?

Well, I have made it easier by listing the things you need to look out for that mean your battery needs to be changed.

Unusual Runtime

When I mention an unusual runtime, there is one thing you should be aware of when inquiring about “how long does a Roomba battery last

A Roomba in good working order should last about hours.

Even if it does not last for 2 hours, it must be close because it is dependent on elements such as your home’s layout, size, type of flooring, and so on.

However, if this is not the case and your robot vacuum dies after a few minutes of operation, this is a red flag that the battery is malfunctioning.

In most situations, this is caused by poor battery care, but there is no need to stretch things out if you see this.

The battery is not holding a charge. This is identical to the previous issue I discussed above when we are breaking down “how long does a Roomba battery last.

If your Roomba battery loses charge after a long period of charging, Perhaps you charged it for 5 hours, and now the vacuum only lasts 5 minutes.

This may leave you perplexed about what is going on with the battle.

If this is happening to you, try performing a battery drain before deciding that the battery has to be replaced.

Here’s how you do it:

  • For 10 minutes, remove the battery.
  • Reinstall it and check to see if anything has changed.
  • If there are none, charge the battery for up to three hours and then see if the battery retains power.

The Power Light is not Turning on.

When your Roomba turns on, it is ready for use. Different colours of light represent different things.

A solid green colour, for example, indicates that your roommate’s battery is fully charged, but a red light indicates that the battery is completely depleted.

When the battery is charging, you will notice a pulsing amber glow. If the power light does not illuminate, the battery is one of the most likely culprits.

To be certain, remove, clean, and reinstall the battery to see whether the light comes on. Replace the battery if it does not.

Reduced Performance even after Proper Maintenance

When you have a problem with your Roooma battery, one of the first things you should do is clean the charging connector and check to see if the battery is properly positioned in its compartments.

However, after performing all of this, the performance may not appear to change. Perhaps it lasts for fewer minutes and does not clean the floor as efficiently as it could.

In that case, take out the battery and wipe the contact surfaces as

If the Roomba’s performance does not improve after emptying and cleaning the vacuum, you must consider changing the battery.

How long does the Roomba battery last during cleaning?

how long does roomba battery last

How long does a Roomba battery last during cleaning? “A Roomba battery is supposed to run for 2 hours. That is the battery’s runtime while being used for cleaning.

However, if the battery lasts less than 5 minutes or less than 1 hour, it is defective and must be replaced.

Roomba Battery Replacement

If your Roomba battery is faulty, you need to get it replaced. You can get started by visiting the IRobot website or Amazon.

Once you’ve got it, here’s how to replace the battery.

  • Remove the side brush from its position with a screwdriver.
  • Loosen the four screws that keep the bottom cover in place before removing it.
  • After that, take out the old battery and replace it with a new one.
  • NB: Make certain that the batteries are the same type.
  • Replace the battery and conceal it.
  • Finally, tighten the four screws.

How Long does the Roomba i3 Battery Last?

If you are using a Roomba i3 battery, a working battery will last for about 2 hours. If it’s way below that, then it is an indicator that the bacteria are bad.

However, if your battery is bad, what are the other red flags you should look out for?


After going through this article, you should be well aware of how long does a Romba battery last, and the different ways to determine if your battery needs replacement.

Now that you’ve gained more ideas on what to do if you want to maximize your battery life, which of them haven’t you tried before?

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