Xiaomi Redmi 5 is a popular budget smartphone released in 2017, but still used by many users. One of the key questions in use is the charging time: how many hours it takes to fully restore battery capacity? The answer depends on the type of charger, battery condition and even ambient temperature.
In this article, we will analyze the exact time frame for different scenarios: from a standard adapter to a standard adapter. 5V/2A before charging through USB-You'll also learn how to speed things up without damaging the battery, and why sometimes your smartphone charges longer than usual. 5 battery-powered 3300 mAhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.
Technical characteristics of the Redmi 5 battery
Xiaomi Redmi 5 is equipped with a non-removable lithium-polymer battery capacity of 3300 mAh. This is the standard solution for budget smartphones 2017-2018, providing up to 12-15 hours of active use under moderate load.
Key parameters affecting charge recovery time:
- 🔌 Maximum charging current: up to 2A (using the original adapter).
- ⚡ Voltage: Standard 5V, no Quick Charge support).
- 🔋 Battery type: Li-Pol (lithium polymer), sensitive to overheating and deep discharge.
- 📉 Degradation: After 300-500 charging cycles, the capacity may decrease by 20-30%.
It’s important to understand that Redmi 5 doesn’t support modern accelerated charging technologies (like Quick Charge 3.0 or VOOC), which means that even with a powerful adapter, charge recovery time won’t be significantly reduced – the smartphone simply won’t be able to consume more current.
Charging time from 0 to 100% with the original adapter
The standard set of Xiaomi Redmi 5 includes a power adapter with characteristics of 5V/2A (10 W).When using the original USB Type-C cable, the full charging time is:
| Charge level | Time (approx.) | Notes |
|---|---|---|
| 0% → 50% | 1 hour 10 minutes | The fastest stage is the battery takes the maximum current. |
| 50% → 80% | 1 hour | The speed is reduced to protect the battery from overheating. |
| 80% → 100% | 50 minutes. | Charging is on a minimum current ("recharging"). |
| 0% → 100% | 2 hours 40 minutes | At room temperature (+20...+25°C) and the screen is off. |
If the smartphone is discharged to 0% and does not turn on, the first 5-10 minutes of the adapter may not show signs of charging.
Factors that increase charging time with the original adapter:
- 📱 Active use while connecting to the network (games, videos, navigation).
- 🌡️ High ambient temperature (above) +30°C) or overheating of the smartphone.
- 🔌 Non-original high-resistance cable (thin wires).
- 🔋 Worn-out battery (more than 500 charging cycles).
💡
To speed up charging by 10 to 15 percent, put your smartphone in flight mode or shut it down completely, which will reduce the load on the processor and reduce heat generation.
Charging through USB-port
Many users connect Redmi 5 to the USB-But this is 2-3 times slower than using an outlet, because it limits the current that the port can give off:
- 💻 USB 2.0: up to 0.5A (2.5 W).
- 💻 USB 3.0: up to 0.9A (4.5 W).
When connected to a standard USB 2.0 port, the Redmi 5’s charging time from 0 to 100% will be 5-6 hours, while the process can almost stop at the last 20% – the smartphone will “hold” the charge level by 80-90%, without bringing it to a maximum.
How to speed up charging via USB:
- Use the USB 3.0 port (usually highlighted in blue).
- Connect your smartphone to your PC in the off state.
- Close the resource-intensive programs on the computer (torrents, games).
- Turn off data synchronization (for example, photos in Google Photos).
⚠️ Note: If the smartphone is not charged through USB-port at all (not even showing the battery icon), check Settings → Additionally. → For developers → Configuration USB. The file transfer mode may be activated or PTP, power-locker.
Can I use fast-charging adapters?
Xiaomi Redmi 5 does not support fast charging technologies (Quick Charge, Dash Charge, VOOC). However, some users are trying to connect the smartphone to adapters with increased power (for example, 5V/3A or 9V/2A).
The smartphone will not burn or fail – the charging controller will limit the current consumed to a safe 2A. However, charging time will not be reduced, since:
- 🔌 Quick Charge adapter 3.0 It will work in a compatibility mode (5V/2And).
- ⚡ Redmi 5 battery is not physically capable of receiving currents greater than 2A.
- 📉 Possible acceleration of battery degradation due to unstable voltage.
The only plus of the powerful adapter is the ability to charge other devices (such as the Redmi Note 10 or tablet) with support for fast charging.
What happens if you use a 12V/2A adapter?
How to speed up charging without harming the battery
If you need to quickly recover the Redmi 5 charge, follow these guidelines:
☑️ Fast charging without risks
Additional advice:
- 🔌 Turn off your smartphone while charging – it will reduce the time by 20-25%.
- 🌡️ Remove the case if the smartphone is heated (especially relevant for silicone or thick cases).
- 🔋 Don’t get to 100%: Turn off 80-90% charging to extend battery life.
- 📵 Avoid vibrations and notifications – they drain the battery even while charging.
Note: If the smartphone charges for more than 4 hours with the original adapter, it is a sign of problems with the battery or power controller.
- Check the battery status through the engineering menu (#4636##).
- Clean the USB-C port of dust and oxidation.
- Test another cable and adapter.
💡
The optimal battery mode is to charge up to 80% and discharge up to 20%, which increases the number of battery cycles by 30-40%.
Frequent errors that slow down charging
Many users unconsciously commit actions that cause Redmi 5 to charge 1.5-2 times longer than normal.
⚠️ Note: Using wireless charging (if you plugged in an adapter for Qi) will not only slow the process down, but can cause overheating. Redmi 5 does not support wireless charging at the hardware level!
Top.-5 causes of slow charging:
- Use of non-original cable with thin veins (resistance is higher, current drops).
- Active background processes: cloud synchronization, application updates, geolocation.
- Charging at extreme temperatures (below +5°C or above +35°C).
- Connection to “weak" USB-hubs or extension cords without power.
- Worn-out battery (capacity below 60% of nominal value).
How to check what exactly slows down the charging?
- 📊 Install the AccuBattery app (shows real-time charging current).
- 🔍 Check the battery temperature in Settings → Battery.
- 🔌 Try a different adapter and cable for comparison.
When is it time to change the battery?
The average battery life of Xiaomi Redmi 5 is 2-3 years when used actively. After that, the capacity decreases to 60-70% of the original, and the charging time increases by 30-50%.
| Symptoms. | Reason. | Decision |
|---|---|---|
| Charging lasts >4 hours | Degradation of battery cells | Battery replacement |
| The smartphone is turned off at 20-30% | Incorrect calibration of the controller | Reset the battery settings |
| Overheating during charging | Short circuit in the elements | Immediate replacement! |
| Charge "jumps" (e.g. 50% → 20% → 50%) | Oxidation of contacts or failure of software | Cleaning contacts or flashing |
The cost of replacing the battery on Redmi 5 in service centers is 1000-1500 rubles (with work). BM47 or BM48.
How to extend the life of the battery?
- 🔋 Avoid deep discharge (below 10%).
- ⚡ Do not leave your smartphone on charge overnight.
- 🌡️ Keep the device at temperature +10…+25°C.
- 📵 Turn off energy-intensive functions (GPS, Bluetooth) in downtime.