Why Xiaomi’s First Charge Is So Questionable – And What’s True
You just unpacked the new Xiaomi Redmi Note 13 Pro+, POCO F6 or Xiaomi 14 Ultra — and the eternal question is: how to charge the battery for the first time? There are a lot of controversial tips on the Internet, from “require to discharge to 0%” to “keep on charging for 12 hours in a row”, most of them a relic of the era of nickel-cadmium batteries, which have long since given way to lithium-polymer (Li-Po).
Xiaomi smartphones today are equipped with smart batteries with a charge controller that regulates current and voltage, which means that there is no “pumping” or “calibration” in the first cycle.
Spoiler: If you just plug the new Xiaomi into the original charger and use it as you normally would, it's okay. But if you want to optimize the process, read on.
Myths about the first charge, which still believe
Let’s look at the most common misconceptions that come from forum to forum:
- 🔋 "You have to completely discharge and then charge to 100%, which was the rule for old Ni-Cd batteries. Lithium polymer batteries, which are in Xiaomi, on the contrary, do not like deep discharges. The optimal range is 20-80%.
- ⏳ "The first charge should last 8-12 hours" - modern smartphones determine the full charge in 1.5-2 hours (even with a capacity of 5000 mAh.
- 🔌 "Charge can only be done with the original cable – it is not the brand of the cable that matters, but its quality and support for the fast charging protocol (for example, Quick Charge 4).+ or PD Counterfeiting can damage the battery.
- 📵 "When you first charge, you can't use your phone, it's not critical. The load on the processor (games, videos) will only slow down the process a little bit, but it won't ruin the battery.
Where do these myths come from? Many of them come from the push-button era of the 2000s, when batteries really required “training”; Xiaomi engineers (and other brands) are now integrating recharge protection, temperature control, and even adaptive capacity limits (such as the Xiaomi 13T Pro) into smartphones.
Step-by-step: how to charge the new Xiaomi correctly
If you want to do everything in science, follow this algorithm, which is based on Xiaomi guidelines and standards for handling lithium polymer batteries.
- Unpack your smartphone and turn it on. Most Xiaomi models (like the Redmi 12 or POCO X6 Pro) have a factory charge of ~40-60%. That's fine - the battery should not be empty in stock.
- Connect the original charger. If it’s not included (like the Xiaomi 14), use a certified Quick Charge or Power Delivery adapter.
- Charge to 100%. The first time you can do that, you activate all the cells in the battery, and then try to stay in the 20 to 80 percent range.
- Turn it off when it hits 100%. Don't leave it on just in case -- modern smartphones can turn off power, but it's not useful to put extra load on.
Important: If your Xiaomi supports wireless charging (like the Xiaomi 13 Pro or Mix Fold 3), it's best to use a wired connection for the first time. Induction charging heats the battery more, and overheating shortens the lifespan.
☑️ Checklist of the first charging Xiaomi
What to do after the first charge: Optimizing for a long battery life
To ensure that your Xiaomi battery lasts 3-4 years without noticeable degradation, follow these rules:
- 🔄 Avoid full discharges. Lithium polymer batteries lose capacity with frequent discharges of up to 0%. Optimal recharge at 15-20%.
- ⚡ Don't hold it 100 percent long. If you leave your smartphone on overnight charging, the battery will be under constant stress, which speeds up wear. MIUI 14+ There is an optimised charging function (Settings) → Battery that limits charge to 80% at night.
- 🌡️ Watch the temperature. The ideal range for charging is 10-35.°C. At 40.°C and above, the battery degrades 2 times faster. In summer, do not leave your phone in the sun while charging.
- 📉 Use "battery mode." The new Xiaomi (starting with the Redmi Note 11) has an ultra-battery saving option that limits background processes and reduces battery load.
Critical information: in Xiaomi smartphones with support for ultrafast charging (120W in Xiaomi 12T Pro or 210W in Redmi Note 12 Discovery), the heat output increases by 30-40% when charging. If you do not need speed, turn off fast charging in the settings (Settings → Battery → Fast Charging).
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In the Xiaomi models with AMOLED-screens (e.g., screens, POCO F5 Pro) turn on a dark theme – this will reduce power consumption by 15-20% and reduce heating when charging.
Table: Comparison of charging methods and their effect on the battery
| Charging method | Time to 100% | Impact on service life | Recommendation |
|---|---|---|---|
| Original adapter (33W) | 1 hour 20 minutes | Minimum wear and tear | ✅ Optimally. |
| Superfast charging (120W+) | 15-20 minutes | Increased heating, accelerated degradation | ⚠️ Only in emergency cases. |
| Wireless charging (50W) | 1 hour 40 minutes | Heat is higher than wired | 🔹 Acceptable, but not for the first charge. |
| Charging from PC (USB 2.0) | 3-4 hours | Minimal wear, but long. | ✅ Suitable for a "sparing" regime |
| "Pumping" (discharge to 0% → charge to 100%) | 2-3 hours | Critical wear, loss of capacity | ❌ Never do it. |
Frequent errors in the first charge – and how to avoid them
Even experienced users sometimes do things that shorten battery life.
⚠️ Note: if you are using a non-original charger with a power higher than the smartphone supports (for example, 120W high-end 67W), Battery controller may fail.Check compatibility in documentation for your Xiaomi model.
- 🔌 Use of damaged cable, micro-cracks in the squirt or bent connectors cause power surges.
- 🎮 Games while charging: Simultaneously high CPU load and charging raise the battery temperature to 45-50°C. Xiaomi Black Shark has a special “gaming charging mode” for this, but it is not available in conventional smartphones.
- ❄️ Charging in the cold if you brought your phone from the cold (below 0)°C), wait 10-15 minutes before connecting to the grid. Lithium polymer batteries do not take charge at low temperatures.
- 🛌 Charging on a soft surface. A connected smartphone lying on a couch or blanket overheats because of poor ventilation. Use a hard surface.
Another nuance: some Xiaomi models (e.g. Redmi K60) have a Charging Standby feature that turns off background processes to speed up charging. It can be enabled in Settings → Battery → Additional. This is useful if you’re in a hurry, but don’t use the mode all the time – it masks the real state of the battery.
What happens if you ignore the rules?
Charging specifics for different Xiaomi models
Not all Xiaomi smartphones are the same — they have different battery types, charge controllers, and even recommendations from the manufacturer.
- 📱 Flagships (Xiaomi) 13/14, Mix Fold – Supports superfast charging (120W) wireless (50W). In the first charge, it is better to use a wired adapter on the 67W (included in the package to minimize heating.
- 💰 Mid-size segment (Redmi Note) 12/13, POCO X5) — optimum charging power 33–67W. There is no active battery cooling in these models, so avoid playing while charging.
- 🔋 Budget models (Redmi) A2, POCO M6) — They often go without charging in the kit. Use the adapter on 10–18W (standard USB-PD). Fast charging is not critical here, but it will not cause harm.
- 🎮 Smartphones (Black Shark) 5/6) — have a liquid cooling system, so they can be charged at high power (120W+) No risk of overheating. There's a separate section in the settings.
For models that support reverse wireless charging (such as the Xiaomi 13 Ultra) in the first month of use, it is better to avoid this feature - it heats the battery more than wired charging. OTG (When the phone is used as a power bank).
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In Xiaomi’s dual-battery smartphones (such as the Xiaomi 11T Pro), the charge is distributed automatically between them. There is no need to “balance” them manually – this is done by the controller.