How long is the fitness bracelet Xiaomi Mi Band 3 charged: the full guide

The Xiaomi Mi Band 3 fitness bracelet remains one of the most popular activity-tracking gadgets, despite the release of new models, its main advantages are compactness, long life on a single charge and affordable price. But even such a reliable device eventually runs out of battery, and users are faced with the question: how long does it take to fully charge?

The answer is not as clear as it seems. Time depends on the current charge level, battery status, charger quality, and even ambient temperature. In this article, we will discuss the real-life time frame of charging the Mi Band 3 from 0% to 100%, and also how to avoid the typical errors that shorten battery life. You will learn why the bracelet can charge longer than the stated time, what to do if the indicator does not burn, and how to store the gadget correctly so that the battery lasts longer.

How long does it take to charge the Mi Band 3?

According to the manufacturer’s specifications, Xiaomi Mi Band 3 is equipped with a lithium polymer battery with a capacity of 110 mAh. In the technical passport of the device, it is indicated that a full charge from a discharge state (0%) to 100% takes about 2 hours.

• 🔌 The original cable and power adapter (or) are used. USB-port).
• 🌡️ Ambient temperature in the range of 10-35°C.
• 📱 Bracelet is not used during charging (notifications, backlights, synchronization are disabled).

In practice, the time may vary. For example, if you charge a USB 2.0 laptop bracelet, it takes 20-30 minutes longer because of the lower current, and if the battery is worn out (for example, after 2-3 years of use), the charging time can increase to 3 hours.

Real Tests: Measuring Charging Time from Different Sources

To verify Xiaomi’s claims, we ran a series of tests with the Mi Band 3 in different conditions, the results are shown in the table below, all measurements were taken on a battery bracelet in good condition (age 1 year, number of charging cycles – about 50).

And you can see from the table that the best option is the original adapter or the quality Power Bank. USB-Ports significantly increase time, and in the case of car adapters there is a risk of overheating the power controller bracelet.

⚠️ Note: If your Mi Band 3 is charging longer than 3 hours from the original adapter, this may indicate battery wear or damage to the power controller.

Next Next post: How to Charge Mi Band 3

What could be easier than plugging the bracelet into a charger?However, many users make mistakes that shorten battery life. Follow this instruction to charge the device quickly and safely:

Remove the bracelet capsule from the strap |Wipe the charging contacts with a dry wipe |Put the cable to the power source (5V/1A)|Put the capsule into the charging socket before clicking |Wait for full charging (green indicator)|Switch the bracelet off the power-->

1. Remove the capsule from the strap. There's a small notch on the back of the bracelet -- put a nail or a plastic card on it and pull the capsule upwards. Don't use metal objects to avoid damaging the body.
2. Clear the contacts. Dust, sweat or dirt on metal contacts (both on the capsule and on the charger) can impair the connection.
3. Connect the charger. Use the original cable or certified analogue. Insert the capsule into the connector before the characteristic click.
4. Start charging. The indicator on the bracelet should light up red (charge) or green (fully charged). If the indicator is not on, check the connection or try another one. USB-port.
5. Wait until it's done. Don't interrupt the process, even if the bracelet is 100 percent -- let it stand on charge for another 10 to 15 minutes to balance the battery cells.

After charging, remove the capsule from the charger and insert it back into the strap. Make sure the contacts are not wet - this can lead to corrosion.

💡

If the charging indicator flashes red, it means that the bracelet does not recognize the power source. USB-port.

Frequent Charging Problems and Their Solutions

Even a simple device like the Mi Band 3 can have charging problems, and let's look at the most common cases and how to fix them.

Bracelet not charged (indicator not burning)

• 🔌 Check the cable and adapter. Try charging the bracelet from another source (for example, from a computer instead of an outlet).
• 🧹 Clear the contacts. Sometimes oxidation or dirt interferes with the normal connection.
• 🔄 Reset the bracelet. Connect it to charging, hold the touch button for 10 seconds, then release it.

The bracelet is charged for too long (more than 4 hours)

• 🔋 Battery wear. If the bracelet is more than 2 years old, it's likely that the battery capacity has decreased.
• ⚡ Weak power source. USB-Some computers have ports that give less than 500 mA. Use a smartphone adapter.
• 🌡️ Overheating or hypothermia. Charge the bracelet at room temperature. If it's hot, let it cool for 10 to 15 minutes.

The bracelet discharges quickly after charging

• 📲 Background activity: Turn off unnecessary notifications in the Mi Fit app (such as weather or social media messages).
• 🔄 Resetting. Sometimes it helps to reset the bracelet to factory settings (in Mi Fit: Profile) → Mi Band 3 → Reset).
• 🔋 Calibrate the battery. Completely discharge the bracelet, then charge to 100% without interruption.

⚠️ Note: If after all the manipulations the bracelet still does not charge or discharges in a few hours, this may indicate a malfunction of the power controller.

How to extend the battery life of Mi Band 3

The lithium polymer batteries installed in the Mi Band 3 degrade over time, but proper operation can significantly slow this process.

• 🔋 Avoid full discharge. Try to recharge the bracelet at 20 to 30 percent charge, rather than waiting for it to shut down.
• 🌡️ Do not charge in the cold or heat. The optimum temperature is 15-25°C. Charging at 0°C or +40°C reduces battery life.
• ⚡ Use original accessories. Cheap cables can produce unstable voltages that harm the power controller.
• 📵 Turn off unnecessary functions. Constant synchronization with Mi Fit, vibration at notifications and screen highlighting consume charge.

It is also recommended to perform a full discharge-charging cycle (0% to 100%) every 3 months to reset the calibration data of the battery.

Comparison with other Mi Band models: who charges faster?

If you’re considering buying a new bracelet, it’s helpful to compare the Mi Band 3 with other models by charging time. Below is a table with data for popular Xiaomi Mi Band devices:

As you can see from the table, the Mi Band 3 is intermediate in charge time. Despite being smaller than the Mi Band 4/5, it charges almost as fast thanks to an optimized power controller, and it has one of the best battery life in the lineup, up to 25 days in moderate use.

💡

The Mi Band 3 is a great combination of fast charging and long running times, and if autonomy is more important than additional features (like NFC in the Mi Band 5), then the choice of the three is justified.

FAQ: Frequent questions about charging Xiaomi Mi Band 3