You just unpacked the new Xiaomi Redmi β a bright screen, a powerful processor and the promise of long battery life. 3-5 In years without losing capacity, the first charge must go by all the rules, and there are more myths surrounding this procedure than there are facts: someone advises you to "calibrate" the battery. 12-With the use of one-hour charging, others argue that modern smartphones don't need a special approach. We analyzed Xiaomi's official guidelines, data from lithium polymer battery research and service centers to give you accurate guidance relevant to models. 2022β2026 year-end.
In this article, you will learn not only how to properly charge the new Redmi for the first time, but also why some βfolkβ methods (like discharging to 0%) harm the battery. We will understand which power adapter is safer, whether you can use wireless charging right out of the box, and what to do if the phone heats up while charging. And also unique data on how the βUltra-Battery Savingβ mode in the new Redmi affects battery calibration during the first cycle.
Why Xiaomi Redmiβs First Charge Is More Important Than Others
Lithium-polymer batteries that are installed in Redmi Note 12, Redmi 13C or POCO X5, They don't have a memory effect, unlike nickel batteries in the 2000s, which means you don't have to drain your phone to zero or charge it for 12 hours at a time, but the first charge cycle still affects how the battery controller will track its actual capacity in the future.
The fact is that when you first connect to the network, the controller calibrates the voltage and current, and if you do this incorrectly (for example, interrupt charging by 50% or use an uncertified adapter), the system can misdetect the boundaries of "full charge" and "discharge", and as a result, after a year, you will notice that the phone turns off at 15-20% charge, although the indicator shows 5%.
- π Xiaomiβs official position is that the Redmi 2023-2026 manuals do not mention βspecial first chargeβ but service centers recommend that the first cycle be run with the original adapter.
β οΈ Note: if you bought a Xiaomi Redmi from hand or it was in stock for more than 6 months, before the first charge check the battery voltage. To do this, enter the phone application code ##4636##, go to "Battery Information". 3.5V, The battery could be deeply discharged - in this case, the first charge is carried out only by the original adapter on the phone turned off.
Next Next post: How to Charge a New Redmi for the First Time
The algorithm is simple, but it requires three key conditions: the original adapter, the full cycle, and temperature control.
- Unpack your phone and turn it on. Wait for the system to boot up fully (sometimes Redmi can update itself after the first turn on - don't interrupt this process).
- Connect the original adapter (if it is not included, use the adapter with Quick Charge support). 3.0/4.0 or PD no higher 33W). Redmi 13C newer 33W Turbo Charge, but for the first charge it is better to limit the standard 18β22W.
- Charge to 100%. Don't disconnect your phone from the network, even if the indicator shows 100% - wait another 15-20 minutes (on the lock screen will appear the words "Charge is complete").
- Turn off charging and use the phone as normal until the charge drops to 5-10% (not to 0!).
- Recharge to 100% with the original adapter, and then the battery will be calibrated.
Use the original cable and adapter|Charge to 100% + wait 15 minutes|Do not interrupt the process (do not play games while charging)|Discharge to 5-10%, not to 0%|Repeat the cycle 1-2 times-->
If you have a model that supports wireless charging (e.g. Redmi) K60 Pro, the first charge is better done by cable. Wireless adapters often heat the battery more strongly, which can distort the calibration.
Original from the kit|Third-party adapter (fast charging)|Wireless charging|Charging from the computer (USB)|I don't know.-->
What adapter to charge the new Xiaomi Redmi: myths and reality
One of the most common questions is whether you can use an adapter from an old phone or a third-party charger. Let's see what's really important.
| Adapter type | Is it suitable for first charge? | Risks. |
|---|---|---|
| Original (from the set) | β Yes. | No risks, optimal current and voltage. |
| Third-party with Quick Charge 3.0/4.0 | β οΈ Conditionally. | It can overheat the battery if it is not certified by Xiaomi. |
| Adapter from another Xiaomi (for example, from the POCO) | β Yes. | If the power does not exceed 33W, no risk. |
| Wireless charging | β No, for the first cycle) | High temperature can disrupt calibration. |
| Charging from USB-port | β No. | Too low current (0.5A) β charging will take 6.+ This is a bad time for Li-Po. |
The big myth is that you can charge the Xiaomi Redmi with any adapter, as long as it's powerful. It's not just the wattage that matters, it's the charging protocol. 65W Realme can produce unstable voltages that cause micro-damages to the battery in its first cycle, and official tests show that using uncertified adapters increases battery wear by 2-3% in 100 cycles.
If there is no original adapter, select a third-party with the following label:
- π Quick Charge 3.0/4.0 (For the Redmi Note 12 newer)
- β‘ Power Delivery (PD) 20W/30W (for Redmi 13C, POCO X5)
- π‘οΈ Mi Turbo Charge certification (if indicated on packaging)
β οΈ Note: Never use laptop adapters to charge Xiaomi Redmi (even with a laptop). USB-C). They're giving out tension. 19β20V, What can burn a power controller? Except for the power adapters. USB-PD and explicit marking 5V/3A, 9V/2A.
How long should the first charge last?
Charging time depends on the Redmi model and the type of adapter, and here are some indications for the popular models from 2023 to 2026:
- π± Redmi 13C (18W adapter - 2 hours 10 minutes to 100%.
- π± Redmi Note 12 Pro+ (33W adapter - 1 hour 5 minutes.
- π± POCO X5 Pro (67W Adapter: 45 minutes, but it is better to use it for the first charge 33W.
- π± Redmi A2 (10W adapter - 3 hours 20 minutes.
If your Redmi charges 30% or more longer, it could be:
- π Use non-original cable (check the labeling: original Xiaomi cables are labeled with the following name): 56KΞ© plug-in).
- π‘οΈ Overheating (unplug your phone from charging if the body temperature is above 40)Β°C).
- π¦ Battery defect (if new phone, contact service center).
π‘
To speed up the first charge without risking battery life, turn on Redmi's "In Air" mode (Settings) β Connections β It'll turn off the background, and the phone will charge 20 to 30 percent faster.
Some users deliberately stretch the first charge for 4-5 hours, believing that it will "pump" the battery. This is a mistake: lithium polymer batteries do not need "slow pumping". USB 2.0) may lead to sulphation of plates - irreversible reduction of capacity.
What to do if the new Redmi is warmed up while charging
Light heating (up to 35-37)Β°C is normal, especially for fast-charging models (Redmi Note 12 Turbo, POCO F5). If the body is hot (over 40)Β°C, it's a signal of a problem. Here are the main causes and solutions:
| Cause of overheating | How to check | Decision |
|---|---|---|
| Use of a non-original adapter | View the markings on the adapter | Replacement with original or certified |
| Active use during charging (games, video) | Open Settings β Battery β Use of the | Close all applications, turn on "In the plane" mode |
| Charging in a case or under direct sunlight | Check the temperature of the body with your hand | Remove the case, charge in the shade |
| Defect of the battery or controller | Enter ##4636## β "Battery information" | Contact the service center |
If the temperature is above 45Β°C, immediately turn off the charger and let the phone cool:
- π₯ Battery bloating (irreversible!).
- β‘ Protection and disconnection of the phone.
- π Loss of 5-10% of capacity in one cycle.
What if Redmi is turned off from overheating during charging?
For models with liquid cooling (Redmi) K60, POCO F4 GT) It's less critical, but it's still undesirable. You can turn on the "Game Cooling" mode on these phones. β Special facilities β Play cooling to lower the temperature during charging.
Common errors in the first charge (and how to avoid them)
Even experienced users sometimes make mistakes that shorten battery life, and here are the most dangerous ones:
- Discharge to 0% "for calibration." This is only true for nickel batteries. In Redmi with a lithium-polymer battery, a deep discharge leads to irreversible loss of capacity.
- Using your phone while charging: Playing games, video calls, or shooting videos loads the processor, which increases the battery temperature by 10 to 15.Β°C.
- Charging from USB-Power bank or computer port. low current (0.5β1A) Makes the battery controller work in a suboptimal mode.
- Interrupt the first charge. If you disconnect the phone from the network by 50-70%, the calibration will be inaccurate.
- Ignoring software updates. In new firmware MIUI optimized charging algorithms (e.g., in MIUI 14 added Adaptive Charging mode, which limits charge to 80% at night).
π‘
The most dangerous mistake is to leave the new Redmi on charge overnight, which in the first 3-5 cycles can lead to a battery swelling due to prolonged exposure to 100% voltage.
Another myth is, "You have to do 3 full charge-discharge cycles in a row." In fact, after the first full cycle (as described above), it's enough to maintain a charge in the range of 20-80% in everyday use.
- π The phone was in storage for over a year.
- π¦ You bought a Redmi from hand and the previous owner didn't keep an eye on the battery.
- π #4636## shows the battery voltage below 3.7V.
How to extend the life of the battery after the first charge
The first cycle is just the beginning. To make Xiaomi Redmi battery last longer, follow these rules:
- π Ideal charge range: keep the level between 20% and 80%. Full cycles (0β100%) reduce battery life by 10β15% per year.
- β‘ Fast charging: use it only when you need it. Use it for everyday charging. 18W.
- π‘οΈ Temperature: Avoid charging at temperatures below 0Β°C and above 35Β°C.
- π΅ Storage: If you don't use your phone for long, charge it to 50% and turn it off. Turn it on once every 3 months and bring it up to 50% again.
- π Updates: Install the latest versions MIUI β Improved battery management algorithms.
The new Redmi (starting with the Note 11) has a hidden feature called Adaptive Charging, which limits the charge to 80% at night and up to 100% by morning.
- Go to Settings. β Battery.
- Put it on the icon "βοΈ" top-right.
- Select Adaptive Charging and turn it on.
For models without this option, you can manually limit the charge to 80% using the AccuBattery app (available on Google Play), which will increase battery life by 20-30%.
β οΈ Warning: If you use wireless charging for Redmi, remember that it heats your phone by 5-8Β°C is stronger than wired. To minimize damage, remove the case and charge the phone on the table (not on a soft surface that blocks the heat sink).