How to find out the charge of the Xiaomi case: all ways for headphones, power banks and smart cases

If you own a case-based Xiaomi device — whether it’s a Redmi AirDots wireless headphone, Xiaomi Buds, Mi Power Bank, or a battery-powered smart case — sooner or later, the question arises: how do you know exactly how to charge it? The manufacturer doesn’t always make this information obvious, and standard methods (like LEDs) often give only approximate data. In this article, we’ll look at all possible methods, from basic to hidden, including those that Xiaomi does not mention in the official instructions.

What's special about Xiaomi devices is that even within a single line (like the Redmi Buds 4 Pro vs Xiaomi Buds 4), the charging testing methods can be different, and you'll have to look at the indicator on the case somewhere, and you'll have to connect to the Mi Fit app or use hidden button combinations, and we've structured the information by device type so you can quickly find a solution for your model.

Important: Some methods require pre-tuning (e.g., sync with your phone) or only work on certain versions of firmware. If the standard method didn't work, check out the alternatives in this article.

1. Charge check by light indicators (the fastest way)

Most of Xiaomi cases are equipped with LED-They're not just indicators that tell you how much they're going to charge, but they're going to behave according to the model of the device:

• 🔴 Red (or flashing red): charge below 20%. Urgent recharge is required - some cases (e.g. Redmi Buds 3 Lite) automatically turn off Bluetooth at critical level.
• 🟡 Yellow/orange: 20% to 50% charge. You can use it, but you'd better charge it as soon as you can.
• 🟢 Green: charge above 50%. Most models have a green light that burns at 100% charge.
• 🔄 Blinking white/blue: the case is in pairing mode (no charge!). To return the indication, press and hold the power button for 3-5 seconds.

Xiaomi devices with multicolor indicators (for example, Xiaomi Buds) 3T Pro) logic is different:

⚠️ Note: In cases of Xiaomi with wireless charging (for example, Mi True Wireless Earphones 3), the indicator can go out 10 seconds after disconnecting from the network. To activate it again, tap the touch button on the case or bring it to the phone.

Verification through the mobile application (accurate data)

If lights aren't enough, the most reliable way to do this is to use official Xiaomi apps, which show the case charge and headphones as a percentage, and battery life, and these are the programs that are suitable for different devices:

• 📱 Mi Fit/Zepp Life (formerly Mi Band): works with most of the world's most popular players TWS-Headphones and some power banks, showing the charge of the case in the Devices section. → [Headphone name] → Battery status.
• 🎧 Xiaomi Earphones: a specialized application for headphones Xiaomi Buds 3/4 Pro, FlipBuds Pro. Displays discharge graph and warns of low charge level.
• ⚡ Mi Power Bank: for Xiaomi power banks (e.g. Mi Power Bank 3 Pro) shows real-time charge and usage history.

Step-by-step instructions for headphones:

1. Install the Mi Fit (Android) or Zepp Life (iOS) app from the official store.
2. Turn on Bluetooth on your phone and open the case with headphones (they should be in pairing mode).
3. In the app, go to Profile → Add the device → Headphones and choose your model.
4. After connecting, close the case and wait for synchronization (can take up to 30 seconds).
5. The charge of the case will appear in the main menu of the device next to the battery icon.

⚠️ Attention: If the application does not show the charge of the case, update the firmware of the headphones through Settings → Update software in the same application: Older versions often don't transmit battery data.

Update Mi Fit/Zepp Life to the latest version

Turn on Bluetooth and geolocation on your phone

Charge your phone to at least 30% (for stable connection)

Make sure the headphones are connected to the phone and not to another device.

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3. Hidden button combinations (for advanced users)

Some Xiaomi cases support service modes that allow you to know the exact charge without apps. These methods are not documented, but work on most models of Redmi AirDots and Xiaomi Buds:

Method 1: Triple pressing of the case button

1. Close the case (the headphones should be inside).
2. Press the button on the case 3 times in a row with an interval of 1 second.
3. The indicator will blink a certain number of times: 🔴 1 time - 0-25% 🟡 2 times - 25-50% 🟢 3 times - 50-75% 🟢🟢 4 times - 75-100%

Method 2: Long-term retention (for touch-button cases)

Hold the touch button on the case for 10 seconds until the indicator starts to blink at a certain rhythm:

• 🔴 Slow blinking (1 time in 2 seconds) – charge below 10%.
• 🟡 Fast blinking (2 times per second) – 10–50%.
• 🟢 Permanent light - 50–100%.

These combinations work even on discharged cases, if they have at least 1-2% charge to activate the indicator.

4. Checking the charge of Xiaomi power banks (Mi Power Bank)

Xiaomi Power Bank Cases (e.g. Mi Power Bank) 3/4 Pro or Redmi Power Bank are tested differently than headphone cases. Here are all the methods available:

• 📱 Through the Mi Power Bank app: shows the charge as a percentage, battery temperature and the number of full charge cycles. Only works with models that support Bluetooth (for example, Mi Power Bank 3 Pro). 20000mAh).
• 🔋 Charge check button: press a single button on the case - from 1 to 4 LEDs will light up (each one) = Redmi Power Bank has a circle of indicators.
• 🔌 Automatic connection indication: when connected to a charger or device, the diodes light up for 3 seconds, showing the current level.

⚠️ Attention: Xiaomi Powerbanks with USB-C Power Delivery (e.g. Mi Power Bank 3 Pro) may not show charge when connected to weak power supplies (e.g., power supply, USB 2.0 port of the laptop. Use a charger with a power from 18W.

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If your Xiaomi power bank (suddenly stopped showing charge), try resetting it: plug it into charging and hold the button for 10-15 seconds until all the indicators blink 3 times. 1S (She doesn't have a software reset).

5. Check the charge of smart cases with battery (for Xiaomi smartphones)

Battery smart cases (such as the Xiaomi Smart Battery Case for the Mi 11 or Redmi Note 10 Pro) are checked through the phone's battery menu.

1. Install the case on your smartphone and make sure that the contacts touch.
2. Go to Settings. → Battery.
3. Click on the cover icon (usually displayed as an Additional Battery or Battery Case).
4. The system will show: 📊 Charge of cover in percentage. ⚡ Current status (charging/discharging). ⏱️ Remaining working hours.

If the battery is not displayed in the battery menu:

• Check if your smartphone model supports this case (the compatibility list is on the official website of Xiaomi).
• Update your phone to the latest version of MIUI.
• Remove and re-installe the case, making sure that the pogo-pin connector is not contaminated.

⚠️ Note: Xiaomi battery cases can automatically shut down at a critical charge level (below 5%) to avoid damaging the smartphone battery.In this case, the case will not appear on the menu until it is recharged to at least 10%.

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Xiaomi smart cases prioritize the charge of the phone: first they give power to the smartphone, and only then they start charging themselves. So the charge of the case can “stand still” until the phone charges up to 80-90%.

6. Alternative methods (if nothing works)

If the standard methods didn’t help, try these non-obvious solutions:

• 🔌 PC Connection: Some cases (such as Xiaomi Buds 3 Pro) display the charge level in Windows Device Manager as Mi True Wireless Earphones (Battery).
• 📲 Battery widget on Android: install Battery Widget Reborn or AccuBattery widget – they can read data from the case if it is connected over Bluetooth.
• 🔧 Case reset: Redmi AirDots 3 Pro and similar models reset settings by holding the button for 20 seconds.
• 🔋 Multimeter: If the case is collapsible (e.g. Mi Power Bank), you can measure the voltage on the contacts of the battery: 🟢 4.2V — 100% charge. 🟡 3.7–3.8V — 50%. 🔴 Below. 3.4V — discharged.

💡 Useful lifehack: If your Xiaomi case supports reverse charging (for example, Mi Power Bank 3 Pro), connect another gadget to it. The charging speed of this gadget will indirectly show the powerbank level of charge:

• 🐢 Slow charging (5W) — bank charge below 30%.
• ⚡ Normal (18W) — 30–70%.
• ⚡⚡ Fast (30W+) — 70%.

7. Frequent problems and their solutions

Sometimes Xiaomi cases do not show charge, discharge quickly or “hang” at the same level, here are typical malfunctions and ways to fix them:

⚠️ Attention: If a Xiaomi case is swelling (seen on the deformed case) - you can not charge or use it! This is dangerous: lithium batteries in this state can ignite. Dispose of the case according to local rules for recycling electronics.

FAQ: Answers to popular questions