Best Roomba Replacement Batteries and Tips How To Prolong Your Roomba Battery Life

Technical progress brought considerable ease in our lives. Various gadgets alternated everyday cleaning process – Roombas has turn everyday routine into pleasant activity. You can have your dwelling cleaned without applying a single effort. Though robots are autonomous machines; they can’t operate right without human intervention and accumulators. Cleaning routine now cannot be imagined without Roomba replacement battery, which keeps our Roombas working and making our lives easier.

General overview

The Roomba’s original battery consists of 12 NiMH batteries connected together in one nickel-based accumulator. The manufacturers state it can run for up 2 hours and last about 350 charges. Though the statistic is very promising, the life of your battery depends on how you take care of it. And sometimes, due to bad care you can find yourself replacing accumulator sooner than you’d like. Luckily, world market offers plenty of options for your robot cleaner.

In this article, you will find a detailed review of batteries for Roomba, their features, and characteristics. Pay attention to tips and advice, which will help you prolong your irobot Roomba battery life.

How to replace Roomba battery

If you have already been changing a battery, this would not be a challenge for you. But installing a battery for the first time can be confusing. Is your Roomba battery dead and you need a battery remove? Then let’s deal with it following our guide on Roomba battery removal.

To replace battery start by turning your robot upside down. Using a screwdriver remove the side brush. Loosen the four screws that secure the bottom cover. Then remove the bottom cover. Your next step will be removing a battery. Place the new battery in your robot with the manufacturer’s logo facing up. Place the bottom cover back on and tighten the four screws. To finish replace the side brush and tighten the screw. Make sure the bottom cover is flush with all sensors. Your removing a battery process is done!



Tenergy 3500mAh Replacement Battery for iRobot Roomba – Best Battery Brand

Tenergy 3500mAh

Tenergy is the most popular battery for irobot Roomba. The first reason for this model success is an affordable price. $19.49 for 3500 mAH battery pack is a good investment.

Manufacturers state this battery running time lasts longer than original Roomba battery packs from iRobot.





  • Outstanding capacity – The battery is an exact replacement, which is made of Nickel Metal Hydride. Its energy density can reach the level proficiency of lithium-ion accumulator.
  • Easy to charge – Thanks to APS – Advanced Power System charger, the battery charges in 3 hours.
  • Overheating protection – Safety features protect the accumulator against short circuit, overheating and wrong voltage unit.
  • Additional brushes in the pack – Buying the battery you will get additional accessories: a brush comb and four side brushes (two for each battery series: Roomba 500, 600, 700 and Roomba 800, 900)
  • 12-month warranty – the tenergy battery is delivered with a 12-month warranty, which covers manufacturers defects and technical support



  • Battery type – Ni-MH
  • Voltage – 14.4 V
  • Weight – 640 g
  • Box dimensions – 6.1 x 2.6 x 2.3 in
  • Capacity – 3500 mAH (3.5 Ampere-hour)

The tenergy batteries are compatible with such Roomba vacuum models:

The accumulator also fits Dirt Dog Vacuum and Discovery Vacuum.

  • Reasonable price –affordable price and outstanding battery quality is combined in this model.
  • Compatibility with original Roomba battery charger.
  • Fast charging – the battery will be fully charged in 3 hours
  • Running time – the manufacturer guarantees up to 100 minutes of runtime.
  • 12-month warranty
  • No money back guarantee is provided

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iRobot Roomba R3 Powerextra 3.5Ah Ni-MH Battery for – #1 Best 510 battery in Vacuum Replacement Batteries

iRobot Roomba R3

This another affordable variant costs from $19.99. The package includes four side brush (2 of them are created for Roomba 500, 600, 700, and another two are for Roomba 800, 900 series). The product is ranked as #1 bestseller in Vacuum Replacement Batteries on Amazon.

The manufacturers guarantee a half-greater battery longevity than the original Roomba accumulators. Moreover, the company provides a 30-day money back guarantee for every customer.

The manufacturer recommends to do a full charge and discharge 2-3 times to make the battery last longest. To do that don’t let the Roomba go back to its base. When the vacuum finished cleaning, place it in the room where it can’t get to base and let in a run as long as possible. Once the battery is fully dead, charge it up fully and start the process of discharging all over again.



  • Excellent quality – High capacity (3500 mAH) and high quality are the undeniable advantages of the model.
  • Additional brushes included – 4 side brush and four screw
  • Safeguard features – protect the accumulator from incorrect voltage, overheating and short circuit
  • Perfect replacement product – the battery fits Roombas as perfect as genuine parts
  • 12-month warranty – seller provides a 12-month limited warranty against manufacturer defects from date of purchase
  • Compatibility with original charger



  • Battery type – Ni-MH
  • Voltage – 14.4 V
  • Weight – 726 g
  • Box dimensions – 5.7 x 2.7 x 2.5 in
  • Capacity – 3500 mAH

The Powerextra 3.5Ah Ni-MH Battery for iRobot Roomba R3 is compatible with Roomba battery:

  • Cheap solution for irobot battery replacement.
  • Compatibility with original Roomba battery charger.
  • 30-day money back guarantee
  • 12-month warranty
  • Some users complain their Powerextra batteries didn’t work long due to incompliance with some vacuum models from listed series

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Morpilot 3800mAh XLife Extended Life1000-Circles – The most durable and reliable accumulator for your robot

Morpilot 3800mAh XLife

This accumulator from Morpilot is not as cheap as two previous models. The price for Morpilot 3800 mAH XLife is $31.99. But this price is more than reasonable because Morpilot offers 3800 mAH capacity to make the cleaning process faster and easier for your robot.

The manufacturer claims the operating time of Morpilot is prolonged due to the higher capacity of the model. Patented battery balancing technology ensures high quality and 4x longer life than original irobot accumulators.




  • Reliability – Built-in over protection circuits protect the battery from overheating and provide safe operation
  • Long-life battery – 1000 cycle times, which make the model perfect choice for longer usage
  • Low rate of self-discharge – Advanced technology ensures improved energy density
  • Compatibility with original charger
  • One year warranty – Money back guarantee and one year guarantee against manufacturer defects are provided



  • Battery type – Ni-MH
  • Voltage – 14.4 V
  • Weight – 726 g
  • Box dimensions – 5.7 x 2.7 x 2.5 in
  • Capacity – 3800 mAH

The Morpilot extended battery is compatible with:

If you are a lucky owner of this irobot models, you can be confident on choosing Morpilot battery for Roomba:

  • Higher capacity than in Tenergy and Powerextra accumulators.
  • Patented battery balancing technology that ensures longer operating capabilities
  • Fully compatible with original charger.
  • Low rate of self-discharge, which ensures energy density
  • Money back guarantee
  • No additional brushes in the package.
  • More expensive variant compared to previously mentioned models

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Tenergy 5200 mAh iRobot Replacement Battery – High Capacity Solution For Your Roomba Battery Replacement 500 Series

Tenergy 5200 mAh iRobot

Another tenergy accumulator that can be your perfect replacement Roomba battery. This newly developed accumulator will absolutely surprise every irobot owner with extremely high capacity. Replacing Roomba battery with this new rechargeable lithium accumulator, you can increase the capacity of your robot and reach a new level of effortless cleaning.

Older NiMH and NiCd batteries had high self-discharge, and memory affects that required a lot of maintenance when the vacuum was not in constant usage. But with lithium-ion accumulators, only 1% of power will be drained each month. Compared to NiMH’s 25 % discharge rate, the company made a huge step creating Tenergy 5200 mahAH accumulator.




  • Fascinating capacity – High capacity ensures longer operating time. While original battery can run the Roomba for 2 hours only, new tenergy accumulator is able to work for up to 5 hours.
  • Lithium-ion powered product – Nickel Metal Hydride accumulators have been left far behind with this new lithium-ion powered battery with low discharge rate
  • Safety guaranteed – This Tenergy 5200 mAH accumulator meets safety standards to ensure safe upgrade to lithium and Roomba battery replacement. The model is protected against over-charge, over-discharge, over-current, over-voltage and over-heating.
  • Bonus brushes in the package – Together with Tenergy 5200 mAH high capacity Roomba 880 battery you get one cleaning brush comb and four side brushes (2 for Roomba battery in series 500 600 and 700 and 2 for Roomba 800 and 900 Series)
  • Compatibility with original Roomba chargers



  • Battery type – Li-ion
  • Voltage – 14.4 V
  • Weight – 447 g
  • Box dimensions – 5.4 x 2.2 x 1.8 in
  • Capacity – 5200 mAH

The Tenergy 5200 mAH Roomba vacuum battery replacement is compatible with such models:

  • Outstanding capacity, which owes to lithium-ion cells
  • Longer operating time – up to 5 hours of work
  • Bonus brushes in the package
  • Compatibility with original charger
  • No additional brushes in the package.
  • Not a cheap variant – $46.99 for an item.
  • Manufacturer doesn’t provide information about warranty and money back guarantee

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Morpilot 3800mAh 14.4V Irobot Roomba Battery, XLife Extended 1000-Circles – Original Battery For Roomba 650

Morpilot 3800mAh 14.4V

This nickel-metal hydride battery is produced by the original iRobot manufacturer. That means the model is perfectly compatible with 500, 600, 700 and 800 series.

The manufacturers recommend charging battery for a number of hours before first use.





  • Original iRobot battery – The item is produced by iRobot manufacturer
  • High capacity – The battery delivers up to 2x battery cycle lifetime iRobot 800 series
  • No memory effect – The producers guarantee low rate of self-discharge and protection circuit design
  • Money back guarantee – The option of money back in case of user’s dissatisfaction as well as one-year warranty is provided.
  • two pack brushes for 800 series are included



  • Battery type: Ni-MH
  • Roomba battery voltage – 14.4 V
  • Weight – 772 g
  • Box dimensions – 5.4 x 2.2 x 1.8 in
  • Capacity – 3800 mAH

The iRobot Roomba Battery is compatible with:

  • Original battery from iRobot manufacturer
  • Low rate of self-discharge
  • 1000 cycle lifetime
  • One-year warranty provided
  • Money back guarantee
  • Additional brushes fit only 800 series
  • Costly price – $32.99 for an item.

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Once you have read the reviews, it still might be difficult to choose one of those Roomba batteries. This chart can help you look through features of different models and decide on the one, which seem the most preferable for you.
Compatibility with roomba rapid charger+++++

Features/ model Tenergy 3500mAh Replacement Battery for iRobot Roomba Powerextra 3.5Ah Ni-MH Battery for iRobot Roomba Morpilot 3800mAh XLife Extended Life1000-Circles Tenergy 5200 mAh iRobot Replacement Battery Irobot Roomba Battery, Morpilot 3800mAh 14.4V XLife Extended 1000-Circles
Battery type Ni-MH Ni-MH Ni-MH Li-ion Ni-MH
Capacity 3500 mAH 3500 mAh 3800 mAh 5200 mAH 3800 mAH
Weight 640 g 726 g 726 g 447 g 772 g
Money back guarantee + + +
Money back guarantee + + + +
Bonus brushes + + + +
Running hours Up to 1 hour 40 minutes Up to 2 hours 30 minutes Up to 1 hour 10 minutes Up to 5 hours Up to 2 hours


iRobot Roomba battery reset

Is your Roomba battery not charging?

If you see that your robot’s runtime has been diminishing and that your robot vacuum cleans for less than twenty minutes, it’s possible that your robot’s battery is deeply discharged and will need to charge for a longer period of time. This is a good time to do the Roomba battery reset procedure.

  • The first step of this procedure is turn the robot on by pressing the large “clean” button in the center of the robot. Then press on the spot and dark buttons at the same time until the “clean” button becomes dim. When the “clean” button becomes dim, you may remove your fingers, and you will hear the sound indicating that the robot has been reset.
  • The next step will be to charge your robot. Plug the robot charger directly into the side of the device. You don’t need to use the charging station to avoid interruption of robot charging cycle. Let the robot charge until the “clean” button becomes green. Once the “clean” button is green, you should leave your robot charging for an additional 72 hours. It is important not to interrupt Roomba charging cycle during this time.
  • After the 72 hours is up, you may remove the robot from the charger. Then have your robot cleaning for the complete cleaning cycle. In the case of most Roomba 500 series, you may press the dock button without a home base present. The robot will clean until its battery is fully discharged and then you will hear the dead battery sound and the “clean” button will flash red. In the case of robots without the dock button you may run several cleaning cycles until the robot batteries fully discharged and you hear the dead battery sound.


It is essential to keep track of your robots runtime. You may repeat the reset procedure several times and see if the runtime improves. If it does not improve, purchase new Roomba 530 battery replacement.

General tips to prolong your Roomba 650 battery life

To get the most out of your battery packs, don’t neglect simple maintenance. Following that advice, you can put off battery substitution and enjoy effortless cleaning.

Clean the brushes – After each cleaning process, hair, dust, and fur gather in the brushes. It is difficult to robot to spin your brush, which is heavier due to excess of dirt. In result, battery longevity is drained away. To minimize wear it is recommended to clean all the brushes once a week.

Keep battery charged – Nickel-based batteries required to be charged whenever you are not using it.

Use all the charge at once – Every battery’s capacity can wear off fast. But if you run the vacuum till the battery dies and then charge it to the full, you will prolong the life of your accumulator without buying and installing battery.

Store robot in a cool place – Most of the electronic devices “likes” when it’s cold. And your robot battery is not an exception. Store the cleaning device in dry and cool place, where heat won’t damage the accumulator. Don’t place it near the radiators and heat-producing electronics.

Turn on the vacation mode – Roomba’s manufacturers provided the vacation mode for their vacuums. This option ensures the new battery remains healthy when not used for a long time. To turn on the vacation mode on your robot, charge the accumulator. Then remove it and store in safe place, separately from the unit.

Which iRobot suits you best?

Choosing iRobot most of the people consider differences between Roomba models. But, to get what you want, you have to consider the coating in your house and type of dirt and dust you need to remove. Which model is best for these specific situations?

Debris – Pet hair
If you have pets or a family member with long hair, 650 is not an option for you. All the other models are designed with HEPA filters, which considerably ease cleaning. But, 650 model can drive you crazy with the hair stuck in the vacuum like forever.

Flooring – Hard floor surface (hardwood, tile, marble, etc.)
Hard surfaces are not a challenge for all the iRobots. Even though various models claim 5x or 10x suction on their packages, practically they are good at picking up dirt and debris equally well on a hard floor.

Flooring – Carpet
Since 980 is the only one with Carpet Boost and two levels of suction power, this model deals with carpets perfectly. The robot revs up slightly while on a carpet, but in practice, any of the iRobots will do a thorough cleaning job on the mat.

House Layout – Studio or One Bedroom
Simple layouts are no big deal for robots. The 650, 860, and 880 apply a pseudo-random cleaning pattern, zigzagging around your home until it covers every inch. Sophisticated 960 and 980 apply their cameras to map your house, vacuuming significant open areas in straight lines. Don’t overpay: the cheaper options can be good enough.

House Layout – 2+ Bedrooms
Multiple bedrooms houses need 960 and 980 models badly. Those options are equipped with visual mapping tech and are currently the only two Roombas on the market with efficient navigation ability that can clean an entire floor.

House Layout – Multiple Storeys
Two or more stories in a run are impossible for modern robots. Current technology cannot develop the robot with the ability to climb now. Some owners suggest placing your older robots on upper stories when you get a new one.

Not everyone can afford two robots though. But it is not that difficult to pick it up and set it down on the storey that needs to be vacuumed and press the big “clean” button in the middle. The robot doesn’t pay attention to where is it placed: it will do the dirty work everywhere.

iRobot is a device that can make your life much easier and your home cleaner place. But every home appliance needs maintenance. When it seems your device is dying it’s time to do the battery upgrade. Outstanding quality is always worth money, but it won’t last long without proper care. Choose Roomba replacement battery that suits you best and make it last!

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