Full instructions for the correct charging of the new Xiaomi Poco X3 Pro: from unpacking to calibration

Why the first charging of the Poco X3 Pro is not just a connection to the outlet

You just unpacked your shiny new Xiaomi Poco X3 Pro with a 5160mAh battery and 33-watt fast charging, and the first thing you want to do is turn it on. Stop! First charging is not a routine procedure, but a critical step that determines how long the battery will hold charge in the future. Smartphone manufacturers rarely talk about it in the instructions, but wrong actions in the first hours of use can reduce battery life by 20-30%.

This article provides expert advice based on the technical specifications of the Poco X3 Pro (model M2012K11AG), research on lithium polymer batteries and the experience of Xiaomi service centers.

• 🔋 Myths about “pumping” the battery – what of this really works for modern smartphones.
• ⚡ Which adapter to use is the original 33W or can you charge from a laptop?
• ⏱️ The optimal first charge time is why not always "up to 100%" and when to turn off.
• ⚠️ Hidden settings MIUI that spoil the battery (and how to turn them off).

Spoiler: The first charge of the Poco X3 Pro cannot be interrupted by 50-80%, which disrupts the calibration of the power controller, which later leads to a "jumping" percentage of charge.

Step 1: Preparing for the first charge – what to do before connecting to the network

Before you plug the cable into the socket, do these steps. They will take 5 minutes, but save months of battery life:

Update. MIUI Up to the latest version (check in Settings) → The phone. → Updating the system)|Turn off the "Adaptive Charging" function in Settings → Battery → Battery settings|Make sure the temperature of the phone is between 15-35°C (check in Settings) → The phone. → Battery status)|Use only the original cable. USB-C (articular MDY-11-ED) or certified-->

Why it matters:

• 📱 Update MIUI fixes power controller bugs. For example, in versions below MIUI 13.0.4, there was an error that caused the phone to misrepresent its charge level after first recharging.
• 🔄 Adaptive charging (aka Smart Charging) limits current to the last 20%, but for the first charge it is harmful - the battery must be calibrated at full power.
• ❄️🔥 The temperature is critical for lithium polymer batteries. If the phone is cold (below 10°C) or hot (above 40°C), the chemical processes in the battery go wrong, leading to irreversible loss of capacity.

⚠️ Warning: If you bought a Poco X3 Pro in the winter and brought it in from the cold, wait 1-2 hours before charging. Condensation inside the case can cause a short circuit!

Step 2: Choosing a charger – can you use a non-original adapter?

The original Poco X3 Pro kit includes an MDY-11-ED adapter with Quick Charge 3.0 support and 33W power. But what if you want to charge your phone from:

• 💻 Laptop (USB 2.0/3.0)
• 🔌 Old charger from Redmi Note 8 Pro (18W)
• ⚡ Wireless charging (if you purchased a module)
• 🚗 Car adapter

The answer is yes, but with reservations. Here's the compatibility table.

The key point is that for the first charge, use only the original 33W adapter. The fact is that the Poco X3 Pro power controller (BQ25970 chip) adjusts to the maximum current at the first connection. If you use a weak adapter, the phone will “remember” less power as the norm, and later even the original charging will work slower.

Original 33W| Charger from another Xiaomi|Power Bank|USB- PC/laptop port |Wireless charging-->

Step 3: First Charging Process – Step-by-step instruction with timings

Now, to the most important thing, follow this instruction in a very strict manner.

1. Connect the phone that's off to the original 33W adapter. Yes, it's off! This is for the power controller to reset the factory calibration settings.
2. Wait for the charging indicator to appear (the red battery on the screen), which usually takes 10-15 seconds.
3. Turn on your phone and go to Settings → About Phone → Battery status. Make sure the temperature is below 35°C.
4. Charge to 100% without interruption. Interrupting the first charge by 50-80% is the most common mistake, which leads to a "jumping" percentage of charge in the future.
5. After 100%, keep your phone charging for another 30 to 40 minutes, which is necessary to balance the battery cells (the Poco X3 Pro uses a dual-cell battery).
6. Turn off charging and use the phone as normal until it is 10-15% (not lower!) and then repeat the charge cycle to 100%.

Total first charge time: ~1.5-2 hours (including balancing) If the process takes much longer, check:

• 🔌 Cable for damage (especially near connectors).
• 📱 Phone temperature (if above 40°C, turn off charging and let cool).
• 🔋 Battery status in Settings → Battery → Battery status. If it says "Good" but the charge is slow, the problem is the adapter.

💡

If after the first charge the phone shows 100%, but after 5 minutes of use the percentage drops sharply to 80-90%, then the calibration was wrong. → Annexes → Application management → Three dots (menu) → Reset the app settings, then completely discharge and recharge the phone.

Step 4: MIUI settings that kill the battery (and how to turn them off)

Even if you charge your phone correctly, some MIUI features can shorten battery life.

1. "Adaptive Charging" (Settings → Battery → Battery settings): This feature artificially slows charging down the last 20%, ostensibly "prolonging battery life." It's actually just masking degradation without solving the problem. Turn it off.
2. "Optimize charging" (Settings → Battery → Performance mode): In "Balanced" mode, MIUI limits maximum capacity to 90%. Switch to "Performance".
3. Auto-run of unnecessary applications (Settings → Applications → Application Management → Auto-run): Turn off auto-runs for social media, instant messengers and games. They constantly wake up the processor, which increases the charge consumption in standby mode.
4. Device Search and File Transfer (Settings → Connections and Sharing): These features keep Bluetooth and Wi-Fi active even when you’re not using them.

We also recommend that you include:

• 📊 "Show percentage charge" (Settings → Screen → Status Bar) - to accurately track the level.
• 🔋 Charge Saving (Settings → Battery) – but only in the “Enable automatically at 15%” mode.

⚠️ Warning: If you use MIUI themes with animations (like "Super Wallpapers"), they increase battery consumption by 10 to 15 percent. Return the standard theme to Settings → Screen → Themes.

Step 5: How to Charge Poco X3 Pro After First Charging – The Rules for Battery Longevity

Now that the first charge is over, you need to keep the battery in good condition. Here are 5 golden rules for the Poco X3 Pro:

• 🔄 Avoid total discharge. Optimal range is 20 to 80 percent. A full cycle of 0 to 100 percent accelerates degradation.
• ⚡ Do not use fast charging all the time. 33W is convenient, but it is better to charge 1–2 times a week on 10W (from USB 2.0) to reduce battery stress.
• 🌡️ Watch the temperature. If the phone is hot above 40 °C (for example, after games), let it cool before charging.
• 📵 Don't charge the vibrations. The Poco X3 Pro vibratory motor consumes a lot of power and heats the battery. Turn off the vibrations when charging.
• 🛌 Don't leave it on overnight charging. Even with smart charging MIUI, the phone can overheat if it's under the pillow.

How long will the battery last if properly operated? According to Xiaomi, if these rules are met, the capacity of the Poco X3 Pro will remain above 80% after 500-ZXZ-600 cycles (this is ~2 year of active use). For comparison, with chaotic charging (0-ZXZ0006QXZ%, overheating), this figure drops to ZXQPH0007QZXXXXXXX cycles.

Step 6: Common Mistakes and How to Avoid Them

Even experienced users sometimes make these mistakes, so check if you're doing anything on this list.

Pay special attention to wireless charging. Poco X3 Pro doesn't support it out of the box, but many users buy modules.

• 🔥 Wireless charging heats the phone 8–12 °C more than wired charging.
• ⚡ The efficiency of energy transmission is only ~60-70% (versus 90% for wired).
• 📉 With constant use, battery capacity drops 15-20% faster.

If you really need wireless charging, use it only in emergency cases and make sure the temperature of the phone does not exceed 38 ° C.

💡

The most dangerous combination for the Poco X3 Pro battery is wireless charging + games + case, in which case the temperature can reach 50°C, resulting in irreversible battery damage.

FAQ: Answers to Frequent Questions About Poco X3 Pro Charging