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External Battery for Xiaomi Mi Electric Scooter / M365 / PRO / Essential

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Weight N/A
Vehicle brand


Xiaomi Mi Electric Scooter 1S, Xiaomi Mi Electric Scooter 3, Xiaomi Mi Electric Scooter Essential, Xiaomi Mi Electric Scooter M365, Xiaomi Mi Electric Scooter M365 Pro, Xiaomi Mi Electric Scooter M365 Pro 2

Battery type


Cell type




External Battery For Xiaomi Mi Electric Scooter / M365 / Pro / Essential (5) - City Lion

Battery compatible with Xiaomi Mi Electric Scooter

  • Xiaomi M365 / M365 Pro / Pro 2
  • Xiaomi Mi Electric Scooter 3
  • Xiaomi Mi Electric Scooter Essential
  • Xiaomi Mi Electric Scooter 1S
External Battery For Xiaomi Mi Electric Scooter / M365 / Pro / Essential (6) - City Lion

Xiaomi scooter range better than before!

Your favorite Xiaomi Mi Electric Scooter with an even bigger range*. Forget about constantly checking your battery level and Focus on the most important thing.

Get anywhere you like with our City Lion external battery. Always on time.

External Battery For Xiaomi Mi Electric Scooter / M365 / Pro / Essential (7) - City Lion

External Battery For Xiaomi Mi Electric Scooter / M365 / Pro / Essential (8) - City Lion

Up to 1000 charging cycles

In our external batteries, we use only proven and brand-new SAMSUNG cells, which guarantee up to 1000 charging cycles.

We do not use recycled cells, which is common practice in this industry, and which are have shorter life span. Longer battery life means not only peace of mind and greater range, but also care for the natural environment.

External Battery For Xiaomi Mi Electric Scooter / M365 / Pro / Essential (9) - City Lion

Simple battery assembly

After the purchase, you will receive a message from us with detailed assembly instructions, and in case of any difficulties, our technicians will be happy to answer any questions. To successfully use the external battery, you need to make a change to the software of the scooter.

Don’t worry, it doesn’t require any specialist knowledge, our manual is more than enough.

External Battery For Xiaomi Mi Electric Scooter / M365 / Pro / Essential (10) - City Lion

Effortless e-scooter charging

Charging takes place as before – via a standard charger plugged into the scooter charging socket.

Batteries are charged simultaneously.


External Battery For Xiaomi Mi Electric Scooter / M365 / Pro / Essential (11) - City Lion

Contents of Xiaomi Battery Upgrade Kit

Together with the City Lion battery for Xiaomi Mi Electric Scooter, you will get:

  • Exclusive Wild Man bag, highly splash-proof, with the City Lion logo
  • Wiring
  • Additional handles for a more stable attachment of the bag
  • Assembly and software modification instructions
  • Spare rubber plug (mounted at the point where the external battery cable enters the scooter frame)
  • TORX 10 key
External Battery For Xiaomi Mi Electric Scooter / M365 / Pro / Essential (12) - City Lion

Highest quality from the leading European manufacturer

We are a Poland-based company that produces additional batteries for the most popular models of city scooters.

Before shipment, each product is subject to strict quality control. We create solutions that we use every day.


* The stated range of the scooter is real but indicative – ultimately the range depends on many factors, such as weight of the user, speed and driving style, air temperature, type of surface, etc.

The latest versions of Xiaomi and Ninebot G30 Max scooters have introduced software updates that make it difficult for users to independently modify the software, which is necessary for the proper operation of an additional battery.

You can easily check if your scooter qualifies for use with the Additional Battery and prepare the scooter for installation:

  1. Download the ScooterHacking Utility app on an Android device, available for download at: Don’t worry, the app is safe.
  2. Download the firmware for the same Android device.Xiaomi M365 / 1S / Essential / Pro / Pro 2:
    Xiaomi Mi 3:
    Ninebot G30 Max:
  3. Open the app and connect it to the scooter.
  4. If the app displays the message “Restricted DRV firmware detected,” press “YES.”
  5. In the “FLASH” tab, click “LOAD FROM FILE” and select the firmware file previously downloaded on your phone.
  6. Click “START FLASH.”
  7. After about 30 seconds, the app will finish loading the modified software onto the scooter.
    1. If you have successfully completed the steps above, congratulations! Your scooter is now ready to work with the additional battery and cover unimaginable distances! You don’t need to do anything else – just connect the battery.
    2. If, however, you receive a notification about blocked DRV or BLE, please contact us at to get support.
    3. We also encourage you to watch the video in which we demonstrate step-by-step how to change the software and install the battery.

Frequently asked questions

How is the secondary battery charged?

The secondary battery is connected to the platform (internal) battery of the scooter in parallel. This means that the voltages of the two packs equalize all the time. Therefore, the secondary battery charges simultaneously with the platform battery. The charger LED will light up green when both batteries are fully charged.

Do I need to modify my scooter's software?

Software modification is only required on Xiaomi and Ninebot branded scooters. An Android device (phone or tablet) will be required for this process. At this time, there is no corresponding app for iOS. On any other vehicle, this is not required.

You do not have a battery on offer for my vehicle. Can you create a battery for me?

There are countless electric vehicles on the market, which doesn't mean we won't be able to power your vehicle! Please use the Bespoke Batteries form and provide us with all the necessary information - we will do our best to complete the project for you. Each vehicle has different connectors on its internal battery. Without providing us with this information we will not be able to help you.

Does the auxiliary battery increase the power and speed of my scooter?

By default, the auxiliary battery does not increase the power and maximum speed of the scooter per se, but it does affect power and speed indirectly. The point is that the scooter only reaches full power when the battery is full. By fitting an auxiliary battery, we will be able to ride at top speed for longer and accelerate dynamically. It is also possible to generate modified software for Xiaomi or Ninebot scooters according to your own preferences, in which we will increase the power or maximum speed of the scooter. Please note that this may lead to the motor of the scooter overheating more frequently, which may result in permanent damage to the vehicle. You do this at your own risk!

Will fitting an auxiliary battery to my vehicle invalidate the manufacturer's warranty?

Unfortunately, it is impossible to make this clear. In theory, any tampering with the interior of the scooter or opening it up could invalidate the warranty. However, in our experience, performing installation work in a sensitive manner will not invalidate the warranty. Ultimately, it is still up to the manufacturer and their service department.

Can I use an additional charger for my extra battery?

This is possible. For a price of £50 we will include a special adapter (XT-60 -> RCA 5.5 x 2.1) in your delivery, with which it will be possible to connect the secondary battery directly to the charger. You will need a charger with identical parameters (max. 4A) with the "DC5521" plug.

I already have a battery from City Lion. Can I replace it with a larger one?

Unfortunately, this is not an option.

What is the delivery time?

For additional batteries, this is usually a maximum of 6 working days. In extreme cases, the delivery time can be up to 10 working days. For all other orders, the delivery time is determined individually, but should not be more than 14 working days.

What is the lead time for your order?

We know that waiting for your order can be difficult at times, so we want to give you a detailed overview of the stages we have to go through to get you a top quality product: #1 We manufacture the battery especially for you (3-4 business days): Our team uses its high level of skill and experience to create a battery perfectly tailored to your needs. #2 We thoroughly test your battery for quality (1-2 business days): We thoroughly test each battery to ensure it meets the highest quality standards and works flawlessly. Hurrying is not our priority, because we know that only care and precision will ensure you a reliable device. #3 Battery preparation for shipping (1 business day): We ensure that the battery is properly protected and packaged so that it arrives to you in perfect condition. #4 Delivery (3-5 working days to any European Union country): We work with reputable courier companies that will deliver your order within 3-5 business days to any country in the European Union.

What is the lifespan of City Lion's batteries?

We use only the highest quality LG and Samsung branded cells, which are known for their reliability and long life. With these, you can be sure that our batteries will last you for many years, providing a reliable source of power.

Is it easy to install City Lion batteries?

City Lion battery installation is simple and intuitive. Regardless of the scooter model, the installation process is easy to follow. In most cases, all you need to do is unscrew and tighten a few screws and then plug in the battery. For the Xiaomi and Ninebot scooters, we include special torx screwdrivers that will allow you to easily remove all the screws. To make sure you do the assembly correctly, instructions are available for the different scooter models on our website at: There you will find detailed step-by-step instructions to help you install the batteries without any problems.
 Don't worry if you have no installation experience, we are here to help you. If you have any questions or concerns, our qualified staff are here to provide expert technical support.

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© City Lion - Polish battery manufacturer, we power Europe's electromobility.