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How Long Does Roomba Take to Charge? A Brief Guide

If you’re the proud owner of a Roomba, you know just how convenient and efficient these robot vacuums can be when it comes to keeping your home clean. However, like any electronic device, Roombas rely on a charged battery in order to function properly. So, it’s important to know how long it takes for your Roomba to charge and how to properly care for its battery.

Comparing Charging Times for Different Roomba Models

how long does it take a roomba to charge

Roomba is a brand of robotic vacuum cleaner produced by iRobot. These devices use rechargeable batteries to power their cleaning cycles, making it necessary to occasionally charge them. The amount of time it takes for a Roomba to charge can vary depending on the specific model. Here is a more detailed breakdown of some popular iRobot Roomba models and their approximate charging times:

Roomba 600 Series

The Roomba 690 and Roomba 675 typically take around 3 hours to fully charge their batteries. These models use nickel-metal hydride (NiMH) batteries, which are known for their high energy density and long lifespan.

Roomba 800 Series

The Roomba 890 and Roomba 877 also typically take around 2 to 3 hours to charge. These models use lithium-ion (Li-ion) batteries, which are known for their high energy density and low self-discharge rate.

how long does it take roomba to charge

Roomba 900 Series

The Roomba 960 and Roomba 985 take around 3 hours to charge. These models also use Li-ion batteries, which offer a longer runtime and faster charging times compared to NiMH batteries.

Roomba e Series

The Roomba e5 and Roomba e6 take around 2.5 to 3 hours to charge. These models use Li-ion batteries.

Roomba i Series

The Roomba i3 and Roomba i3+ also typically take around 3 hours to charge. These models use Li-ion batteries

Roomba s Series

The Roomba s9 and Roomba s9+ typically take around 2.5 hours to charge.

It’s important to keep in mind that these charging times are approximate and may vary depending on the age and condition of the Roomba’s batteries. To extend the Roomba battery life, it’s recommended to use the charging dock whenever possible and to remove the battery pull tab before use. With proper care and maintenance, you can ensure that your Roomba continues to provide efficient and reliable cleaning performance.

Tips for Maintaining and Maximizing Your Roomba’s Battery

how long does it take to charge a roomba

To ensure that your Roomba is able to charge properly and maintain good battery life, there are a few things you can do:

  1. Use your Roomba regularly: Roomba batteries are designed to be used and allowing a battery to sit idle for long periods of time can actually lead to a decrease in performance. To keep your Roomba’s battery in good shape, try to use it at least once a week.
  2. Keep your Roomba’s charging port clean: Dust, dirt, and debris can accumulate in the charging port and prevent your Roomba from charging properly. To keep it clean, use a dry cloth or a small, soft-bristled brush to gently clean the area around the charging port.
  3. Charge your Roomba in a cool and dry place: Avoid charging your Roomba in a damp or humid environment, as this can cause damage to the battery. It’s best to store your Roomba in a cool, dry place when it’s not in use.
  4. Charge your Roomba for at least two hours: To ensure that your Roomba has a full charge, it’s best to leave it plugged in for at least two hours before using it. This will help ensure that your Roomba has enough power to complete a full cleaning cycle without running out of juice.
  5. Avoid overcharging: While it’s important to make sure your Roomba has a full charge before using it, you should avoid leaving it plugged in for extended periods of time. Overcharging can lead to battery damage and reduce the overall lifespan of your Roomba’s battery.
  6. Use a rechargeable battery: If your Roomba model uses a removable battery, consider purchasing a rechargeable one. This will save you money in the long run and reduce waste, as you won’t have to constantly purchase new batteries.
  7. Check your Wi-Fi connection: Some Roomba models are equipped with Wi-Fi connectivity, which allows you to remotely control and monitor your Roomba using a smartphone app. If your Roomba is struggling to connect to your Wi-Fi network, it may drain the battery faster. Make sure your Wi-Fi connection is strong and stable to help extend the battery life of your Roomba.
  8. Clean the battery contacts: Over time, the battery contacts on your Roomba can become dirty or corroded, which can affect the charging process. To clean the battery contacts, use a dry cloth or a small, soft-bristled brush to gently clean the area around the contacts.
  9. Keep your Roomba clean: A dirty Roomba can work harder and use more battery power to complete a cleaning cycle. To help extend the battery life of your Roomba, make sure to regularly clean the brushes, sensors, and other parts of the device.
  10. Avoid using your Roomba on thick carpets: Thicker carpets can put extra strain on the battery, so try to avoid using your Roomba on these surfaces if possible. If you do need to clean thick carpets, consider using a lower power setting or running the Roomba for a shorter period of time.


1. What to Do if Roomba Is Charging Slowly?

If your Roomba battery is charging slowly, check the charging port and cord for dirt, debris or damage, check the charging base for damage and make sure it is properly plugged in, and consider the possibility that the issue may be with the battery. If none of these solutions help, try contacting the manufacturer for assistance.

2. How to Tell if Roomba Is Charging:

To tell if a Roomba is charging, you can check the charging light on the front of the device. When the Roomba is charging, the light will be solid red. If the light is not on or is flashing, the Roomba is not charging. You can also check the status of the Roomba’s battery by pressing the “Clean” button and then pressing the “Spot” button. The Roomba’s battery level will be displayed on the LED display on the front of the device. If the battery level is low, the Roomba will need to charge before it can be used again.

3. How Do I Know When My Roomba Is Fully Charged:

To know when your Roomba is fully charged, you can check the battery indicator light on the device or the accompanying smartphone app. The battery indicator light is typically located on the front or top of the Roomba and will turn green when the device is fully charged. The accompanying smartphone app, if available, may also provide a more precise reading of the battery level and indicate when it is fully charged. Alternatively, you can check the manual for your specific Roomba model for more information on how to check the battery level.

4. How Long Does a Roomba Battery Last:

The lifespan of a Roomba battery can vary depending on a number of factors, including how frequently it is used, how well it is maintained, and the specific model of Roomba you have. On average, a Roomba battery can last anywhere from 1-2 years with regular use and proper maintenance. However, it’s important to note that this can vary greatly and it’s always a good idea to keep an eye on your battery’s performance and replace it if necessary.

In conclusion:

The amount of time it takes for a Roomba to charge can vary depending on the specific model you have. To ensure that your Roomba is able to charge properly and maintain a good battery life, it’s important to keep the charging port clean, avoid overcharging your Roomba, and use it regularly. By following these tips and keeping an eye on your Roomba’s battery performance, you can help ensure that your robotic vacuum is always ready to keep your home clean. And If you’re wondering, Are Roomba worth it to buy then you can also check our guide on it.

Callum Stokes is a renowned house cleaning expert with over a decade of experience in the industry. As a lead writer for, he shares invaluable insights on innovative cleaning solutions and the latest vacuum technologies.

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