The Xiaomi Mi Band 5 fitness bracelet remains one of the most popular activity tracking gadgets, despite the release of new models. Its owners often wonder how long it takes to fully charge the device? The answer depends on several factors - from the state of the battery to the type of charger. In this article, we will analyze the exact figures of charging time, compare them with other versions of the bracelet (Mi Band 4/6/7), and also explain how to speed up the process and avoid typical errors that shorten the battery life.
Many users complain that their Mi Band 5 charges longer than the manufacturer's stated time, most often due to the use of unoriginal cables or charging through the manufacturer's charger. USB-We tested the bracelet under different conditions and found that charging times can range from 1.5 to 3 hours — and that’s not always the fault of the device. Next, you will learn how to check the serviceability of charging and what to do if the bracelet does not respond to the connection to the network at all.
Key point: Xiaomi Mi Band 5 is equipped with a lithium-polymer battery capacity of 125 mAh, which is 25% more than its predecessor (Mi Band 4 with 95 mAh). This affected not only the autonomy, but also the time of full charging. the manufacturer claims 2 hours to 100%, but real tests show different results - especially if the bracelet was in use for more than a year.
How long is the Mi Band 5 charged?
According to Xiaomi’s technical documentation, the full charging time of the Mi Band 5 is 2 hours when using the original charger. However, this value is relevant for a new bracelet with a battery in perfect condition.
It's important to consider that the first 80 percent charge faster and the last 20 percent charge slower, because it's a battery protection algorithm that prevents the cells from overheating and degrading, and if your bracelet is charging longer than 3 hours, it's a good reason to check the cable, power supply, or device itself for malfunctions.
Critical information: With a non-original magnetic connector cable, the Mi Band 5 can not only charge longer, but also stop turning on due to unstable contact. The official cable has a unique protection scheme that is absent from cheap analogues.
Factors affecting charging speed
The charging time of Xiaomi Mi Band 5 depends not only on the battery capacity, but also on external conditions.
Type of charger and cable
- 🔌 Original cable: provides stable current ~500mA, charging time ~2 hours.
- 🔄 Non-original cable: current can drop to 300-400 mA, time increases to 3 mA+ hours.
- 💻 Charging from USB-PC port: current is often limited to 500 mA, but can be unstable.
- ⚡ Charging from the network adapter 5V/2A: The best option is that the current is not limited.
Ambient temperature
Mi Band 5 batteries are sensitive to temperature:
- ❄️ Below. +10°C: Chemical processes slow down, charging time increases by 30-50%.
- 🔥 Higher. +35°C: Risk of overheating, system limits current for safety.
- 🌡️ Optimum temperature: +15°C +25°C.
Condition of the battery
Over time, the battery capacity decreases:
- 🆕 New bracelet: charged in 1.5-2 hours.
- 🔋 After 300 charging cycles: time can increase to 2.5-3 hours.
- ⚠️ Signs of wear: the bracelet discharges in a few hours, does not hold the charge.
⚠️ Warning: If the Mi Band 5 heats up while charging (above) +40°C, immediately disconnect it from the network! This may indicate a battery failure or the use of poor quality cable.
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Before charging, wipe the contacts of the bracelet and magnetic cable with an alcohol napkin - oxidation or dirt can worsen contact and increase charging time.
Comparison with other models: Mi Band 4 vs 5 vs 6 vs 7
To understand how fast or slow the Mi Band 5 charges, compare it to other versions of the bracelet, the main difference being the battery capacity and the supported charging current:
| Model | Battery capacity | Charging time (0–100%) | Charging current | Features |
|---|---|---|---|---|
| Mi Band 4 | 95 mAh | 1.5-hours--2 hours | ~400 mA | Less capacity, but similar charging time. |
| Mi Band 5 | 125 mAh | 1.5-hours--2.5 hours | ~500 mA | Increased capacity, but charging time increased slightly. |
| Mi Band 6 | 125 mAh | 1-2 hours | ~600 mA | Optimized power supply, charges faster. |
| Mi Band 7 | 180 mAh | 1.5-hours--2 hours | ~800 mA | The highest charging speed among the rulers. |
As you can see from the table, the Mi Band 5 is not the fastest charging speed, but it is not far behind the new models, and the main advantage of the Mi Band 7 is the increased charging current (800 mA), which reduces the time to 1.5 hours even at a higher capacity.
Why does the Mi Band 5 charge longer than the Mi Band 6 when the capacity is the same?
It’s about optimizing the power circuit: in the Mi Band 6, Xiaomi improved the charging controller, allowing for increased current without risk to the battery. The Mi Band 5 takes a more conservative approach to extend battery life.
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If you’re planning to upgrade to a new model, the Mi Band 6 or 7 will charge faster with the same or higher battery capacity.
How to speed up charging Xiaomi Mi Band 5: 5 working ways
If your bracelet takes too long to charge, try these proven methods to speed up the process.Some of them seem obvious, but many users overlook them:
1.Use the original cable and adapter
Cheap analogues can limit current or not provide a stable connection at all. The original Mi Band 5 cable has:
- 🔌 Magnetic connector with reliable fixation.
- 🛡️ Built-in overheating protection.
- ⚡ Optimized resistance for current ~500 m.
2. Charge from the network adapter, not from USB-port
USB-The ports of computers or laptops often limit current to 500 mA, and sometimes below. Network adapter (for example, from a smartphone) provides stable power. 2A, Which speeds up charging by 20-30%.
3. Turn off the bracelet while charging
If the Mi Band 5 is on, it continues to expend energy on the background (synchronization, notifications).
- Scroll through the screen to the Settings point.
- Choose Turn it off.
- Confirm the action.
4.Avoid extreme temperatures
Charge the bracelet indoors at room temperature (+18°C–+25°C). Cold or heat slows down the chemical reactions in the battery.
5. Clean the bracelet and cable contacts
Dust, sweat, or oxidation on magnetic contacts can impair the connection. Wipe them with a cotton swab soaked in alcohol.
Use the original cable|Charge from a network adapter (not from the USB-port)|Turn off the bracelet before charging|Check the purity of contacts|Avoid high/low temperatures-->
Typical User Errors When Charging
Many Xiaomi Mi Band 5 owners accidentally shorten battery life or experience charging problems due to improper actions.
1. Use of non-original cables
Cheap analogs can:
- ⚡ Give unstable current, which leads to overheating of the battery.
- 🔌 Badly fixed, interrupting charging.
- 💥 Induce a short circuit (in rare cases).
2. Charging to 100% and discharging to 0%
Lithium polymer batteries degrade faster if kept at a maximum or minimum, with an optimal range of 20 to 80 percent.
Wet charging
If the bracelet is wet (after showering or swimming), the contacts may oxidize, leading to poor connection. Always wipe the Mi Band 5 before charging.
4.Using "fast" charging from smartphones
Quick Charge or Fast Charge adapters won’t speed up bracelet charging, but can overheat the power controller, as the Mi Band 5 doesn’t support high currents.
⚠️ Warning: If the bracelet shows an incorrect battery level after charging (e.g. 100% resets to 50% after switching off), this is a sign of battery wear or controller failure.
What if the Mi Band 5 doesn’t charge at all?
How to extend the battery life of Mi Band 5
The average battery life of Xiaomi Mi Band 5 is 2-3 years when used correctly. To maximize capacity, follow these recommendations:
1. Keep the charge in the range of 20-80%
Constant charging to 100% and discharging to 0% accelerates the degradation of lithium polymer cells, and it is optimal to recharge the bracelet when the charge drops to 20-30%.
2. Avoid high temperatures
Don't leave the bracelet.
- 🔥 In the sun (for example, in the car in the summer).
- 💻 Near heating devices (laptop, router).
- 🔋 On charging longer than necessary.
3. Regularly update the firmware
Xiaomi is releasing updates that optimize power consumption. Check the relevance of the software in the Mi Fit app:
- Open Mi Fit. → Profile → Mi Band 5.
- Click Firmware Update (if available).
4. Store the bracelet with 50% charge
If you don't plan to use the Mi Band 5 for a long time (like on vacation), discharge it to 50% and turn it off.
5. Use only certified accessories
Cables and adapters from unknown manufacturers can damage the power controller, which will lead to unstable operation or breakdown.
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Compliance with these rules will help to keep the battery capacity at 80% or more, even after 500 charging cycles.