Vacuum cleaners are popular because of their unique design and superior suction power. However, with the increase of use time, its battery life will gradually get weak, and the vacuum replacement batteries need to be replaced.

This article will introduce the current trends in the vacuum cleaner market and detail how to replace the vacuum replacement batteries to help you easily solve the vacuum battery problems.



Vacuum cleaner market development trend

Recently, the research institution EVTank and China Battery Industry Research Institute analyzed the vacuum cleaner market, and EVTank defined the vacuum cleaner as a broad vacuum cleaner including ordinary vacuum cleaners, anti-mite meters, sweeping robots and floor washing machines.

In 2022, from the perspective of product structure, ordinary vacuum cleaners accounted for the highest proportion, reaching 81%, followed by mopping robots, mite cleaners and floor scrubber, accounting for 9.5%, 6.4% and 3.1%, respectively.

From the comparison of 2021 and 2022, due to the continuous innovation and upgrading of floor scrubber products in terms of cleaning power, convenience and intelligence, it has created the ultimate use experience for users, while improving cleaning efficiency, and its market share has increased rapidly, especially in the China market, which has reached 13.7%.

Shipments of different types of vacuum cleaners in China in 2021 - 2022




Floor scrubber



Floor mopping robot



Mite cleaner



Vacuum cleaner




With the gradual increase in the penetration rate of wireless vacuum cleaner products, the demand for lithium-ion batteries has also gradually increased, data shows that in 2022, the demand for lithium-ion batteries for wireless vacuum cleaners in China was 610 million, a year-on-year decrease of 14%.

In 2022, the lithium penetration rate of China's wireless vacuum cleaner (including floor mopping robot and floor scrubber) reached 95.3%, the industry trend of lifepo4 battery  have been settled in the wireless vacuum cleaner market. It is expected that it will soon 100% replace nickel-metal hydride batteries, and apply on a large number of vacuum cleaner products.

For more information related to nickel batteries, you can click to check nickel-metal hydride vs lithium ion AA batteries .


From the perspective of battery types, currently wireless handheld vacuum cleaners mainly use cylindrical 18650 rechargeable battery , with high magnification cylindrical cells of 2.0Ah, 2.5Ah, and medium magnification cylindrical cells of 2.2Ah and 2.8Ah being more commonly used. Floor scrubbers mainly use batteries of 21700 battery  of 4.0Ah and 21700-5.0Ah, while floor mopping robots mainly use medium magnification cylindrical lithium battery  of 18650-2.6Ah and 18650-3.2Ah.

Introduction to Dyson vacuum cleaner

Dyson V series wireless vacuum cleaners entered the Chinese market in 2015 and have gone through V7, V8, V10, and V11. Dyson's groundbreaking design has gained popularity among Chinese users, with sales occupying a very large market share. Both online and offline, Dyson is the preferred brand for consumers.

Reference for offline market share of electric cleaner appliances in China:


Although Dyson vacuum cleaners are deeply loved by consumers, they are not always perfect. In recent years, there have been discussions about Dyson battery failure and attenuation. If there are problems with the batteries and you have expired the warranty period, what should you do?

Compared to replacing the entire machine, replacing the vacuum replacement batteries is a more cost-effective option. Is it necessary to replace the original battery? Dyson original batteries are expensive, but as long as you choose batteries that match parameters and have guaranteed quality, you can achieve higher cost-effectiveness in replacing vacuum cleaner batteries.

Firstly, let's take a look at the battery specifications of the entire Dyson series:






Battery specification






Charging time






Low speed endurance






High speed endurance







When choosing other brands of batteries, pay attention to the specifications. Because third-party batteries usually come in multiple specifications to increase battery life, but the size may differ from the original.

Taking the V6 as an example, the original battery is 21.6V/2100mAH, while third-party batteries can achieve a maximum of 5000mAH. Although the battery life has increased, the volume has also increased, which will make the original charging stand unusable and can only be charged by directly plugging the charger into the machine.


The V6-V8 models come with different battery levels to choose from. Of course, one thing to note is that although high battery levels can provide longer battery life, their size will increase. When charging, the original charging rack cannot be used anymore, and the charger plug should be directly inserted into the main unit.

The V7/V8 uses almost the same mold, without looking at the battery and bottom label, it will be hard to distinguish between the two hosts. Therefore, the V7 battery is made to have the same width as the V8, and the front half of the battery is completely the same size, except for the opening and protrusion of the display light.

Due to the larger volume of 20700 compared to 18650, the tail of the V7 battery is much shorter. The key is that the hangers of the V7 and V8 are identical, and the V7 vacuum cleaner can perfectly use the V8 vacuum replacement batteries.

It should be noted that in order to avoid mixing the vacuum replacement batteries, the body interfaces of V7 and V8 are designed differently. The vacuum replacement batteries of V8 are wide and thin, while those of V7 are narrow and thick.

If the V8 battery needs to be inserted into the V7 body, only a small part of the plastic needs to be trimmed, and the tool can be used with the model's water nozzle pliers and it would be a bit troublesome to install the V7 battery on the V8 body.


Using tips for Dyson vacuum replacement batteries

The protection board of the original Dyson battery has a lockup function, which means the red light is on. This is usually caused by severe attenuation of the battery pack or abnormal power loss of individual cells.

If left unprotected and used continuously, the heat generation will be very high. The temperature probe of the protection board can only monitor the second and third batteries. Usually, lockup occurs when the battery state of charge is low, and there are also severe impacts that cause lockup, which is evident on V10 vacuum cleaner battery packs.

Therefore, here are some using tips for Dyson vacuum replacement batteries:

  1. Try to keep it fully charged. After using the vacuum cleaner, it will be automatically charged on the rack. When fully charged, the protection board will automatically cut off power so that it won’t be overcharged. When fully charged, due to the high voltage and constant power operation, the current is low and the heat generation is small, which is beneficial for the battery.
  2. Do not deliberately discharge the battery before charging.
  3. If you plan to not use it for a long time, you can discharge 60-70% of the electricity, leaving about 30% of the total capacity. The voltage of a single cell is about 3.5V, and it can be stored for a long time with almost no capacity decay.

    How to replace Dyson vacuum replacement batteries

    Replacing the Dyson vacuum cleaner battery may seem difficult, but as long as you follow the correct steps, it is actually quite simple.

    Before replacing the vacuum replacement batteries, please make sure that you have purchased the correct battery model and have the necessary tools ready. If you are unsure how to replace the battery, please refer to the user manual of the vacuum cleaner or contact Dyson customer service.

    1.Purchase a suitable battery

    Before replacing the Dyson vacuum replacement batteries, you need to determine the correct battery model. There are multiple models of Dyson vacuum cleaners, and each model has a different battery.

    Therefore, before purchasing a battery, please ensure that the battery you choose matches your vacuum cleaner model. When purchasing batteries, it is recommended to choose batteries to ensure their quality and lifespan.

    2.Prepare the tools

    Replacing the Dyson vacuum replacement batteries requires some extra tools. You need a screwdriver and some small wrenches to remove and reinstall the battery. It is recommended to use professional tools to ensure the safety and correctness of battery replacement.

    3.Remove the vacuum cleaner

    Before replacing the Dyson vacuum cleaner battery, you need to disassemble the vacuum cleaner. Firstly, place the vacuum cleaner on a flat surface. Then, use a screwdriver and wrench to remove the housing of the vacuum cleaner. When disassembling the casing, be careful not to damage other components.

    4.Remove the battery

    Once you have removed the vacuum cleaner housing, you can start disassembling the battery. The battery is usually located at the bottom of the vacuum cleaner. Gently loosen the connector on the battery using a wrench, and then remove the battery. Please note that the battery may be very tight and requires careful disassembly to avoid damaging other components.

    5.Install a new battery

    Once the old battery is removed, you can start installing the new battery. Insert the new battery into the slot at the bottom of the vacuum cleaner and ensure that the connector is properly connected. Then, reinstall the vacuum cleaner housing and tighten all screws to charge the vacuum cleaner until the battery is fully charged.