Why is the first charge important for the Xiaomi Redmi battery?
You just unpacked the new Xiaomi Redmi and you're holding a factory battery, and there's a lot of myths surrounding the first charge: some people say you should deplete your smartphone to zero, some say you should charge it to 100%, and some say you should "calibrate" it in three cycles, but what does the manufacturer and modern science say about lithium-ion batteries?
Xiaomi’s current smartphones, including the Redmi line, are equipped with lithium polymer batteries that don’t require pumping like old nickel cadmium batteries. However, the first charging cycle does matter — it affects how the battery controller will track real capacity in the future. In this article, we will review Xiaomi’s official recommendations, scientific data and practical tips that will help extend the life of your Redmi battery by 20-30% longer.
It is important to understand that the manufacturer does not require the battery to be “calibrated” when first turned on, but the correct charging procedure in the first days of use helps to avoid controller errors that can subsequently lead to incorrect display of the charge level.
Xiaomi’s official position: What does the manufacturer say?
The user manuals for Xiaomi Redmi smartphones (including the Redmi Note 12/13, Redmi 12/13 and other current devices) do not have strict requirements for the first charge. However, in the Settings → Battery → Battery condition section, you can find tips for care:
- 🔋 Use an original or certified power adapter (for Redmi, this is usually the case). 33W/67W model-wise).
- 📉 Avoid full discharge (below 5%) and constant charging to 100%.
- 🔌 When first charging, connect your smartphone to the network immediately after unpacking, without waiting for the discharge.
Why Xiaomi doesn't insist on "pumping"? Modern lithium-polymer batteries don't have a "memory effect," so the discharge-charge cycle doesn't improve them to extremes, it worsens them. Moreover, the new Redmi uses MI Fast Charge technology, which automatically adjusts the charging current to protect the battery.
⚠️ Note: If you bought a Xiaomi Redmi with your hands or the device was in stock for more than 6 months, the first charge may take longer than usual.
Next Next post: How to Charge a New Redmi for the First Time
Despite the lack of strict rules, follow this proven procedure for optimal battery performance:
- Turn on your smartphone and wait until the initial setup (language selection, Wi-Fi connection, Mi Account login) is complete, and it will take 10-15% of the charge.
- Connect the original adapter (such as 33W for the Redmi Note 12 or 67W for the Redmi K60) and the USB-C cable from the kit.
- Charge 80-90%, which is enough for the first cycle, and fully charging to 100% creates an excess voltage that accelerates battery degradation.
- Turn off the power and use the smartphone as normal up to 20-30%. Then reconnect the charger.
This method is called “partial cycles” and is recommended for all lithium-ion batteries, reducing the load on the electrodes and extending the lifespan to 500-800 cycles (versus 300-500 when charging 0-100%).
Use the original cable and adapter|Indoor temperature 10-35°C|The smartphone is not under direct sunlight|Charging is connected to the socket, not to USB-port-->
Common myths about the first charge: what is true and what is not
There are dozens of tips on first-charge charging on the Internet, but most of them are outdated or just harmful.
| Myth | Reality. | Effects of consequences |
|---|---|---|
| Reduce to 0% before the first charge | ❌ Harmful to lithium-ion batteries | Deep discharge damages the anode, reducing the capacity by 1-2% per cycle |
| Charge 12 hours for pumping | ❌ It's pointless. | Modern smartphones turn off charging at 100%, further power only warms the battery |
| Use only the original charging | ✅ Partly true. | You can use certified Quick Charge or PD adapters, but cheap no-names can damage the controller. |
| The first 3 cycles must be charged to 100% | ❌ Not necessarily. | This is recommended for older Ni-MH batteries, but not for Li-Po. |
The most dangerous myth is the advice to discharge the smartphone before automatically shutting down. In Xiaomi Redmi at 0% on the screen, the real charge is ~3-5%, and further discharge leads to a deep discharge, after which the battery can lose up to 20% of capacity in one cycle.
What is a “deep discharge” and why is it more dangerous than usual?
Optimal charging settings for Xiaomi Redmi
After the first charge, set up your smartphone for maximum battery life:
- Activate Optimized Charging in Settings → Battery → Battery settings. This feature limits charging to 80% at night and brings it up to 100% just before waking up.
- Turn off Fast Charging if you don't rush: High current heats the battery. In Redmi, this is done via Settings → Battery → Fast Charging.
- Set a dark theme and reduce the brightness of the screen to 50-60%. AMOLED-screens (e.g. in Redmi) K60) Consume less energy when displaying dark colors.
Xiaomi also recommends avoiding simultaneous charging and heavy use (games, video editing), as this increases the battery temperature.The optimal temperature for charging is 10-35 ° C. When exceeding 40 ° C, degradation is accelerated by 2-3 times.
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If your Redmi gets too hot while charging, remove the case and place it on a flat surface (not on a pillow or blanket) to improve heat sink.
What if the battery is discharged quickly after the first charge?
If after the first charging cycle Xiaomi Redmi discharges too quickly, check the following points:
- 🔍 Background Processes: Go to Settings → Annexes → Permits → Autostart and disable autostart for unnecessary apps.
- 📡 Network: In Settings → SIM-Maps and mobile networks select mode 4G instead 5G, if the coverage is unstable (constant search for the network consumes charge).
- 🔄 Updates: Check for software updates in Settings → The phone. → Update the system, new versions MIUI often optimize energy consumption.
If the problem persists, run a battery diagnosis:
- Please dial the phone application ##4636##.
- Select Battery Information and check the Charge Level, Voltage and Temperature settings.
- Compare the indicators with the norm: Voltage at 100%: 4.35-4.45V. Temperature in simple: 25-35 ° C.
⚠️ Note: If the voltage at 100% charge exceeds 4.5V or the temperature in the idle above 40°C, this may indicate a faulty controller or battery.
How to extend the life of the Xiaomi Redmi battery: long-term tips
The first charge is just the beginning. To ensure that the battery lasts 3-4 years without noticeable degradation, follow these rules:
- 🔌 Avoid Extreme Charge Levels: Keep the Level Between 20% and 80%. According to a study by Battery University, this increases the life of the 300-500 cycle.
- 🌡️ Control the temperature: Do not leave your smartphone in the sun or near heat sources (e.g., on a car torpedo in summer).
- 🔄 Use quality accessories: Cheap cables and adapters can cause voltage surges that damage the battery controller.
- ⚡ Turn off fast charging if you're not in a hurry.Slow charging (5W-10W) less wears out the battery.
For owners of Xiaomi Redmi wireless charging (Redmi K50 Pro, Redmi Note 12 Pro+, etc.), it is important to remember that wireless charging is 30-40% less efficient and heats the device more. Use it only when necessary.
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Regular charging reduces battery life by up to 100% per year by 15-20%, and the optimal range is 30-80%.