Xiaomi users are faced with the need to discharge their smartphone batteries from time to time, and the reasons can vary from calibrating the battery to testing the battery life. However, the wrong approach to this process can harm the lithium-ion battery by reducing its life by 15-30%. In this article, we will discuss 10 proven ways to quickly and safely discharge the Redmi, POCO or Mi to 0%, and also describe what errors lead to irreversible battery degradation after 3-5 such cycles.
It's important to understand that modern Xiaomi smartphones are equipped with deep-discharge protection, so it's not software-enabled to completely kill the battery to zero. But there are legal workarounds. We tested all methods on Redmi Note 12 Pro+, POCO F5 and Xiaomi 13 Ultra models, the results are summarized in the comparison table below.
Why can’t we just wait for a natural discharge?
Many users leave their phone on standby, hoping it will run out on its own, and this is the slowest and most ineffective strategy for three reasons:
- 🔋 Optimization MIUI: The system automatically disables background processes at low charge (below 15%), slowing down the discharge by 2-3 times.
- ⏳ Time: even with active use (social networks, instant messengers), the discharge from 100% to 0% will take 8-12 hours.
- 🔌 Adaptive charging: some models (e.g. Xiaomi) 12S Ultra) include a saving mode when the charge drops below 20%, which further slows down the process.
Moreover, if you’re trying to discharge a phone to calibrate the battery, a natural discharge won’t give you an accurate result: Xiaomi’s power controller can show 0% when the real charge is 3–5%.
Top.-5 Safe Ways to Discharge Xiaomi Without Harming the Battery
These methods do not disrupt the power controller or cause overheating, but can be used regularly (e.g., 1 every 3 months for calibration).
- Developer mode + Turn off optimization: Activate Developer Mode (7 times click on Version) MIUI In Settings → About the phone, then go to Settings → Additionally. → For developers and disable: Optimization MIUI Adaptive Brightness Background Application Activity After that, run the stress test: turn on maximum brightness, activate High Performance Mode and run 3D-A game (such as Genshin Impact or Call of Duty Mobile) will run from 100% to 1% in 2-3 hours.
- Using 4K camera: Continuous 4K@60fps video recording with HDR enabled and stabilised drains the battery by 1% every 1.5–2 minutes. To speed up the process: Enable Professional Shooting Mode Activate 4K recording with maximum bitrate Turn off Wi-Fi and mobile data Set screen brightness to 100%-->
The remaining three methods (use of the GPS-navigation, high-resolution video playback and activation of all wireless modules are detailed in the table below.
| Method | Discharge speed | Time to 0% | Risks. |
|---|---|---|---|
| Recording. 4K-video | 1% / 1.5 minutes | 2.5-30 hours | Overheating of the chamber during prolonged use |
| 3D-max-play | 1% / 2 minutes | 3-4 hours | Strong processor heat |
| GPS-navigation + mobile | 1% / 3 minutes | 4-5 hours | Minimal but slow process |
| Reproduction 4K HDR-video | 1% / 2.5 minutes | 3.5-to-4.5 hours | Overheating of the screen at 100% brightness |
⚠️ Warning: If the body temperature exceeds 45°C, stop the process immediately! overheating above 50°C can cause battery bloating, especially on models with 5,000-capacity batteries+ mAh (for example, Redmi Note 11 Pro)+).
Emergency methods: when to discharge Xiaomi in 1-2 hours
If you don't have enough time and you need to discharge the battery as quickly as possible, use combination methods, which put all the components on load at the same time, but require temperature control.
- ⚡ Supercharge (for power users): Simultaneously launch: Record 4K-video with Pro-mode enabled. 3D-play-off (PUBG Mobile on ultra-settings. Streaming music via Spotify or YouTube Music. GPS-navigation (Google Maps or Yandex.Navigator). With this approach, Xiaomi 12T Pro discharges from 100% to 1% in 1 hour 20 minutes (tested on the MIUI 14).
- 🔥 Use of the engineering menu: How to open the engineering menu on Xiaomi Dial in the application "Phone" code ##4636## → select "Battery Information" → Activate Battery Testing mode. This will disable all restrictions. MIUI Discharge, but may lead to unstable operation before rebooting.