Buying a new device from Xiaomi, whether it is the flagship Xiaomi 14 or the available Redmi Note, is always accompanied by excitement and a desire to get the device started faster. However, after removing the gadget from the box, many users are faced with the dilemma: should you put it on charge right away or can you turn it on?
In this article, we will discuss how to properly charge your new smartphone to avoid common errors and extend battery life. We rely on the official recommendations of Mi engineers and the physicochemical properties of lithium polymer (Li-Po) batteries, which are installed in all current models.
Proper operation from the first minute is the key to stable operation of the BMS (Battery Management System), which is responsible for energy distribution and protection against overheating. If you want your POCO or Black Shark to delight you with autonomy for many years, you should pay attention to the initial activation.
There are many misconceptions that are passed by word of mouth, overgrown with myths, such as the belief that a new phone should be kept on charging for 12 hours and then completely discharged to zero, a dangerous misconception that can lead to a deep discharge and battery failure before it even starts active operation.
Breaking Myths: Should You Charge a New Phone for 12 Hours?
The myth of 12-hour “training” charging goes back a long way, when phones used nickel-cadmium (NiCd) or nickel-metal hydride (NiMH) batteries, which had what is called a “memory effect”: if they were not fully charged, they “remembered” the smaller capacity. Lithium batteries, which are commonly used in Xiaomi, Redmi and POCO smartphones, are completely devoid of this effect.
What’s more, a long battery life after reaching 100% can be stressful for the power controller. Current MIUI or HyperOS charging algorithms are smart enough to stop the current from flowing at full charge, but leaving the phone connected for half a day unnecessarily is an extra load on the components.
⚠️ Warning: Leaving a new smartphone on charge all night for the first time or keeping it connected for 12 hours in a row is a pointless procedure that won't add capacity, but can cause electrolyte heat and degradation.
Battery manufacturers, such as ATL or LG Chem, often supply batteries with factory charged at about the 40-60%. This is the optimal level for long-term storage of lithium cells, so when you take your phone out of the box, you often see a value on the screen that is about 50%. This is not a defect, but a regular situation, indicating the correct logistics of the goods.
So the answer to the question, "Do I need to charge 12 hours" is clear: no. Just bring the charge to 100% once, then you can start setting up the system, and the main thing is to use the original charger that comes with the kit, because it provides the correct current and voltage profile.
Primary activation and calibration of the controller
Although long-term dances with a diamond are not required, a specific sequence of actions is still desirable when first turned on, it helps the system calibrate the charge-discharge controller, calibration is necessary for the software to correctly display the percentage of charge and correctly manage the BMS.
The process of primary activation is as follows:
- 🔋 Take the smartphone out of the box and if the screen is turned off, connect it to the original power supply on the 30-60 Even if the indicator shows a high percentage.
- 📱 Turn on the device and wait for the Android operating system to fully load.
- 🚫 Don’t load your phone with heavy tasks (games, 4K-video) before the charge reaches 100% for the first time.
Once you turn on your phone and see the welcome window, don't rush to install dozens of apps right away. Let the system complete the background indexing processes. During this time, the processor can run more intensely than usual, which causes heating. If it's charging, the temperature can rise to critical values.
Calibration of the battery is essentially going from minimum to maximum to allow the controller to “understand” the real capacity of the new battery. Although modern controllers are accurate enough, one full cycle (discharge to shutdown and charge to 100%) at the beginning of a smartphone’s life helps to customize the energy saving algorithms more precisely for a particular battery instance.
Next articleHow to Charge a New Xiaomi for the First Time
To ensure maximum efficiency and durability of your new gadget, follow this proven manual, which takes into account the specifics of the operation of lithium polymer cells and the specifics of the Xiaomi software.
☑️ Primary charging Xiaomi
Step 1: Prepare. Make sure you use the original cable and adapter. If you don't have them (in new eco-packs), use certified accessories that support Quick Charge or Power Delivery fast charging protocols. Poor-quality cables may not miss the necessary current, and charging will go extremely slowly, causing the connector to heat up.
Step 2: Start the process. Connect the phone that is turned off or on to the network. If the phone has been turned off, it can automatically turn on. If the screen is on but the system is not loading, that's OK. Let it dial at least 5-10% charge before first turning on if the indicator shows 0%.
Step 3: Watch the temperature. During the first charge, periodically touch the back panel. Heat to 35-40 degrees Celsius is acceptable, especially when using fast charging technologies with a capacity of 67 watts, 120 watts and higher. However, if the body becomes hot enough to be unpleasant to hold in your hand, it is better to remove the case or move the device to a cool surface.
Step 4: Finish. When the indicator goes 100%, you don't have to turn off the phone right away, but you don't have to hold it for hours either. Modern controllers go into "drip recharging" mode to compensate for self-discharge, but for the first time, just turn off the cable after you reach full charge.
| Phase | Action. | Purpose |
|---|---|---|
| Before incorporation | Connect to the network for 15-30 minutes | Raise the battery voltage above the launch threshold |
| During the incorporation | Leave it on charge. | Reduce battery load at system start |
| After inclusion | Bring it to 100% | Calibration of the charge controller |
| After 100 percent. | Shut off the network. | Preventing Excess Heat and Stress |
This is a controller training mode that analyzes battery status and ambient temperature to optimize future speed.
Optimal operating conditions for Li-Ion and Li-Po batteries
Understanding how battery chemistry works will help you avoid mistakes in the future. Lithium-ion and lithium-polymer batteries are sensitive to extreme states: deep discharge and recharge. The worst state for them is 0% and 100% charge, especially when combined with high temperatures.
For maximum longevity, try to keep the charge in the range from 20% to 80%. It is in this interval that the chemical reactions within the element are most stable, without excessive voltage to the electrodes. Of course, walking overboard every day is inconvenient, but avoiding regular full discharges to zero is a good habit.
⚠️ Warning: Deep discharge (before shutdown and beyond) is dangerous for lithium batteries. If you leave the phone dead for a long time, the voltage may drop below the critical level, and the controller will block charging for safety reasons.
Temperature is also critical. Overheating above 45 degrees Celsius irreversibly destroys the electrolyte structure. Don't leave the new Xiaomi or Redmi under direct sunlight, on a car torpedo or under a pillow while charging. Cold is also harmful: charging at negative temperatures can lead to the formation of metallic lithium on the anode, which reduces capacity.
Use optimization features built into MIUI. For example, Optimized Charging learns your habits (e.g. if you charge your phone at night) and pauses charging at 80%, only completing it before you wake up, allowing the battery to stay in full voltage for less time.
Fast charging settings and safety
Fast charging technologies such as Xiaomi HyperCharge, SuperCharge or VOOC, They're standard. They allow you to fill the battery with a capacity. 5000 It's just a mile. 20-30 But this speed requires a lot of control, and the protocol between the charger and the smartphone is constantly monitoring the temperature and voltage.
Xiaomi's new models have a dual battery cell, and it's actually split into two parts that charge in parallel, which reduces heat and load on each cell, and if you notice that the phone is charging slowly, check if you're using Sparing Charging or Night Charging.
The path to charging settings is usually at: Settings → Battery → Battery Protection (or similar item depending on the HyperOS version). Here you can activate charge limits to extend battery life if you plan to use the device for several years.
When using third-party chargers without support for proprietary Xiaomi protocols, the charging speed can be limited to the standard 10-18 watts. This is normal and even safe for the battery, as it occurs with less heating. However, to activate the maximum speed, always use a complete unit.
Common Mistakes in Using New Smartphones
Even with the theory, users often make mistakes that shorten the life of the gadget, one of the most common being using the phone while charging for resource-intensive tasks, running heavy games or rendering videos when the battery is already warmed by incoming current creates thermal stress.
Another mistake is using cheap refuelling cables or damaged wires, which have high resistance, which causes voltage to drop and the contact site to heat up, charging slowly at best, and burning the USB-C port or power controller on the motherboard at worst.
Don’t ignore the system updates: MIUI and HyperOS firmware regularly release patches that improve battery algorithms. Xiaomi engineers are constantly refining power consumption profiles for different applications, which directly affects battery life.
Also, it's a mistake to completely discharge the "training" -- as I said, you don't need lithium. Try to charge your phone when it's down to 15-20% -- it's a "comfort zone" for battery chemistry.