Buying a Xiaomi smartphone – what you need to know about the battery from day one
You just unpacked the new Xiaomi Redmi Note 13 Pro+, POCO F6 or Xiaomi 14 Ultra — and the question is: how to properly charge your smartphone for the first time to last as long as possible? manufacturers rarely give detailed recommendations, limited to the phrase “use the original adapter”, but in practice, the first cycles of charging depends on up to 20% of the battery life in the long run.
Modern Xiaomi smartphones are equipped with lithium polymer (Li-Po) or lithium-ion (Li-Ion) batteries that do not have a “memory effect”, but still require careful handling. The main problem is the degradation of capacity over time: after a year of intensive use, the battery can lose up to 15-25% of its original capacity.
In this article, we will discuss:
- 🔋 Should the battery be calibrated in Xiaomi’s new smartphones (spoiler: not always)
- ⚡ Optimal charging modes for different models (from budget Redmi to Xiaomi 14 flagships)
- ⏳ How long should a new smartphone be charged and when it can be turned off?
- ⚠️ 5 Common Mistakes That Kill Your Battery in 6 Months
Myths about the first charge: what is true and what is a relic of the past
There are a lot of tips on the “correct” first charge, some of which are outdated 10-15 years ago, and we will analyze the most popular myths in relation to Xiaomi smartphones from 2023-2026:
- 🔄 "You need 3 times to completely discharge and charge to 100%" - was relevant for nickel-metal hydride (Ni-MH) batteries of the 2000s. Modern Li-Po batteries in Xiaomi do not require such a procedure, moreover - deep discharges are harmful to them.
- ⏱️ "The first charge should be done for 12 hours" - it is reinsurance, which can even hurt. 13T Pro or Redmi Note 12 Turbo automatically shut down power when you reach 100%.
- 🔌 "Charge can only be original charger" - partly true, but only if we are talking about fast charging (for example, 120W HyperCharge in Xiaomi 12S For normal charging, any high-quality adapter with support will suit USB-PD Or Quick Charge.
The only thing that really matters when you first charge is to let the battery get used to the cycle.
- Discharge your smartphone to 20-30% (not to 0!).
- Charge up to 80-90% with the original charger.
- Repeat the cycle 2-3 times in the first days of use.
Step-by-step: how to charge Xiaomi after purchase
The algorithm of the first charge depends on the state in which you received the smartphone.
Scenario 1: The smartphone is turned on out of the box (charge 30-50%)
Most new Xiaomi (like the POCO X6 Pro or Redmi 13C) have a factory charge of around 40%.
Use the original cable and adapter
Charge up to 80-90% without interruption
Do not use your smartphone while charging
After charging, give the battery a rest for 10-15 minutes
Repeat the cycle through 1-2 day-day-->
- Connect the original charger (if not, use a Quick Charge 3.0+ or USB-PD certified charger).
- Charge your smartphone before 80-90% Charging time depends on the model: 📱 Redmi A2+ (10W) — ~2.5 hourly 90% ⚡ POCO F5 Pro (67W) — ~30 minute 90% ⚡⚡ Xiaomi 13T Pro (120W) — ~15 minute 90%
stabilize
20-30%
Scenario 2: Smartphone discharged to zero (not included)
If your Xiaomi comes with a fully discharged battery (for example, after a long storage period in stock), proceed carefully:
⚠️ Attention: Deep discharge (below) 3.2V) If your smartphone doesn’t respond to charging within 30 minutes, don’t try to “resuscitate” it yourself, contact the service center.
- Connect the original charger and leave the smartphone on charge for at least 1 hour, even if it does not show signs of life.
- If an hour later the charge indicator appears on the screen, wait at least 10% before turning on the device.
- After turning on, charge up to 50%, turn off the smartphone and recharge to 80-90%.
- A smartphone that is constantly connected to charging (for example, used as an alarm clock at night) loses up to 40% of capacity in a year: 🛌 Enable Adaptive Charging in Settings (Settings) → Battery → Additionally). ⏰ Use smart timer outlets to turn off power after reaching 80%.
💡
The most dangerous combination for Xiaomi battery is fast charging + games + heat. For example, charging a POCO F5 to 67W while playing Genshin Impact at temperatures above 30 ° C can reduce battery life by 3-4 times.
How to extend the life of Xiaomi battery: additional tips
In addition to charging properly, battery life is affected by system settings and usage habits.
1. Optimize battery settings
Go to Settings → Battery and activate:
- 🔄 Adaptive charging (slows charging to 100% at night)
- 📊 Battery usage statistics (helps identify "gluttonous" applications)
- 🛡️ Battery protection (limits maximum charge to the maximum charge) 80-90%)
2. Update firmware
Newer versions of MIUI (starting with MIUI 14) have improved power management algorithms, such as Xiaomi 13 Ultra, which has increased battery life by 10-15% since upgrading to MIUI 14.0.5 due to optimizing background activity.
To check for updates, go to Settings → About Phone → System Update.
3.Use a dark theme and adaptive brightness
AMOLED-screens (installed in Xiaomi) 12T, 13 Pro, Mix Fold 3) consume 20-30% less energy when you display dark colors. Activate:
- 🌑 Settings → Screen. → Dark subject.
- ☀️ Settings → Screen. → Adaptive brightness
4. Disable unnecessary functions
Some Xiaomi features actively consume charge even in the background:
- 📡 Continuous search Wi-Fi/Bluetooth (Settings → Connections → Additionally)
- 📍 High geolocation accuracy (Settings) → Confidentiality → Permits → geodata)
- 🔊 Vibration when typing (Settings) → Sounds and vibrations)
5. Calibrate the battery every 3 months
Over time, the charge controller may show inaccurate data (e.g., 100% at real 95%) to reset the statistics:
- Discharge your smartphone to 0% (until it turns off).
- Connect to charging and wait 100% without interruptions.
- Turn off the charger, turn off the smartphone and connect again for 1 hour.