How to open the battery compartment in the mouse Xiaomi: all the ways for different models

Xiaomi's wireless mice are some of the most popular PC and laptop accessories because of their combination of price, quality and design. But even these simple devices sometimes have questions about their use. One of the most common is how to open the battery compartment if the lid is not amenable or the mechanism is not obvious? This is especially true for new users who are first to encounter the brand's products.

In this article, we’ll look at all the possible ways to open the battery compartment for different Xiaomi mouse models, from budget Redmis to Mi Gaming Mouse games, where to look for hidden latches, how to cope with a boiling lid, and what to do if the mouse does not respond after replacing the battery, and also unique life hacks for models with non-standard mounting, which are not described in the official documentation.

Why the battery compartment is not opened: the main reasons

Before you start to force, you need to understand why the battery lid doesn't respond, and here are the most common reasons:

• 🔒 Latch Lock – Many Xiaomi models feature a hidden mechanism that requires clicking in a specific location.
• 🔩 Swirling screw – some mice (such as Mi Gaming Mouse Lite) have an additional screw attachment under the rubber leg.
• 🧲 Dry rubber - if the mouse lay for a long time without use, sealing rubber can "stick" to the body.
• 🔋 Incorrect switch position – in models with a mechanical switch (e.g. Redmi Mouse) the cover is sometimes blocked if power is on.

Also, do not rule out factory defects - in rare cases, plastic guides can be deformed. If the mouse is new, check the configuration: some models come with a key to open the compartment (for example, Mi Silent Mouse in the first batches).

Methods of opening the compartment depending on the model

Xiaomi has several mouse lines, each with its own battery-chamber opening mechanism, and we've compiled instructions for the most popular models below.

If your model isn't in the table, try the universal method: shine a flashlight at the junction of the lid and the body — often under the light you can see a gap where you want to press. In Xiaomi mice, the latches are usually located closer to the scroll wheel or under rubber legs.

Step-by-step: how to open the compartment without damage

Follow this algorithm if you are unsure of the type of attachment or are afraid of breaking your mouse:

Make sure the mouse is off (switch in OFF position)

Prepare a plastic card or mediator to lid the lid

Check for screws under stickers or legs

Take a picture of the mouse from above and below (useful for contacting the service)

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Step 1. Turn the mouse over and look at the bottom.

• 🔍 Arrows or inscriptions (e.g, PUSH or OPEN) — They point to a hidden button.
• 🔩 Screws under rubber legs or stickers (carefully tuck them in with a knife).
• 📏 The gap between the lid and the body - if it is, then the lid is sliding.

Step 2. If a button or latch is found:

• Press it at the same time pulling the lid on yourself (for Mi Bluetooth Mouse models).
• If there is no button, try to move the lid towards the wheel (for Redmi Mouse).
• For Mi Gaming Mouse Lite, first unscrew the mount, then press the lid.

Step 3. If the lid fails:

• Warm the mouse with a hair dryer (temperature not higher than 50 ° C) - this will help if the rubber is "rigged".
• Use a plastic mediator to gently lid the side without latches.
• Check out the video instructions for your model (see section below).

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If the mouse is new and the lid does not open, check if the transport plug is installed. In some models (for example, the Mi Silent Mouse of the first batches), it blocks the opening mechanism.

Video Instructions for Popular Models

Sometimes it's better to see once than read a hundred times, and here's a selection of official and custom videos showing the battery bay opening:

1. Redmi Mouse (WM01):

🎥 Video link shows how to press the hidden latch at the wheel.

2. Mi Bluetooth Mouse (BMR01):

🎥 Video link - demonstration of the opening through the Mi logo.

3. Mi Gaming Mouse Lite:

🎥 Video link - where to look for a screw and how to move the cover.

Note: some of the videos use metal tools – don’t repeat it! for Xiaomi mice, a plastic card or mediator is enough not to scratch the case.

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If the mouse doesn't work after the battery is replaced, check the polarity (+/-) and make sure the contacts aren't contaminated. In 30% of cases, the problem lies in the oxidized contacts, not in the battery itself.

What to do if your mouse doesn’t work after replacing the battery

Situation: You successfully opened the bay, you replaced the battery, but the mouse doesn't turn on.

• 🔋 Incorrect battery installation – check for polarity (the case usually has markings) + and –).
• 🧹 Contaminated contacts – wipe them with a cotton swab soaked in alcohol.
• 🔄 Synchronization failure – Bluetooth models (Mi Bluetooth Mouse) may need to re-pair.
• 🔌 Battery discharged – even a new battery can be defective (check with a tester).

If the mouse is still not working:

1. Remove the battery and press any mouse button 5-10 times – it will reset the residual charge.
2. Check the power switch (if any) – it should be in the ON position.
3. For wireless models, reboot the Bluetooth adapter on your computer or smartphone.
4. If nothing works, try another battery (preferably an alkaline battery, such as Duracell or Energizer).

⚠️ Note: If the mouse is unstable after the battery is replaced (for example, the cursor twitches), the problem may be in the dead battery of the receiver (for models with USB-dongle). USB-port or replace its battery (if required by the design).

How to avoid battery problems in the future

To avoid encountering a jammed lid or oxidized contacts, follow these tips:

• 🧼 Clean contacts every 3-6 months with a cotton swab soaked in isopropyl alcohol.
• 🔄 Change batteries on time – don’t wait for full discharge, it can lead to oxidation.
• 🌡️ Keep your mouse in a dry place – humidity accelerates the corrosion of contacts.
• 🔧 Do not make excessive efforts when closing the lid – this deforms the plastic guides.

For Mi Silent Mouse models, periodically wipe the magnets with a dry cloth - dust and metal shavings can disrupt the fixation. If the mouse is rarely used, remove the battery for storage time - this will prolong its life and prevent leakage of the electrolyte.

If you often have trouble opening the bay, consider buying a magnet-removable mouse (like the Logitech MX Master 3) or a built-in battery (Xiaomi Mi Rechargeable Mouse), which is USB-C charged and free of battery problems.

FAQ: Answers to Frequent Questions