You need to know about this tip: How to open a secret menu on your Xiaomi smartphone and view battery life?

Although in recent years mobile technology has made tremendous progress. Developers seem to forget about battery upgrades. So users still have to think about charging and if they plan to use a smartphone for a long time, then the good battery condition. MIUI it offers an excellent tool for this.

The battery status view is a hidden feature in MIUI 11

There are a number of applications to monitor battery status, but in general, the fewer applications we have on the smartphone, the better its battery life and performance. If you are a MIUI 11 user, there is an alternative in the form of a hidden menu that monitors the battery status and provides the user with a range of information.

You must have your smartphone installed to invoke the menu Android 10 and superstructure MIUI 11. Then you just need to know the secret code to activate the offer. You enter the code in the application Cellphone - Caller on the keypad in the same way as you would enter a phone number.

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When called on the keyboard, you enter these characters * # * # * # * # 6485. After entering the last star, the battery status menu is displayed. If this does not happen, press the green handset button after the last star - Phone call.

The activated menu contains information about the battery and its status, which are listed under certain codes. To give you a better overview, we'll describe what each data means. However, we want to add that not all data must be shown to every user.

Here are explanations of each piece of information

MB_XX codes:

MB_00 - percentage of remaining battery power
MB_01 - current battery status - Charging / Discharging
MB_02 - charging method - for example fast, common, etc.
MB_03 - current voltage state - for example 4394984, ie 4,39 volts
MB_04 - current value of the drawn voltage by phone
MB_05 - battery temperature - for example 297 the value is 29,7 ° C
MB_06 - battery status - if you see the information Good, it means that it is in good condition
MB_07 - Charger chip temperature or Charging adapter temperature respectively
MB_08 - current level of temperature control
MB_09 - maximum battery voltage when fully charged

MU_XX codes:

MU_00 - type of charger used
MU_01 - current charging mode
MU_02 - direction of output or charging input (0 - does not charge / 1 - charging / 2 - reverse charging)
MU_03 - maximum input voltage via USB
MU_04 - current input voltage via USB

Codes MF_XX:

MF_00: - internal battery resistance
MF_01: - actual charge level in percent. If this parameter is not the same as MB_00, this may indicate a problem. Sometimes it is enough to restore the factory settings.
MF_02: - battery cycle - how many battery charging cycles fully charge from 0% to 100%
MF_03: - battery contact resistance - battery resistance with motherboard contact
MF_05: - actual battery capacity
MF_06: - battery capacity specified by the manufacturer

MM_XX codes:

MM_00: - AICL result (adaptive input current limit)
MM_01: - USB input current
MM_02: - maximum charging voltage of the charger
MM_03: - maximum current full charging capacity

As mentioned, not every user may see all of the codes listed. One of the most important indicators in this case is below code MF_02. This indicates how many charge cycles the battery has come.

What it is the higher the value, the more susceptible the battery is to voltage drop and its performance. A value of 500 or more means approximately a year and a half of use and indicates a significant decrease in battery power.

Of course, this is only informational data and there is no need to panic in case of inadequate values. If your smartphone works reliably, then everything is fine. We only pointed out the possibility to check the condition of the battery without the need to install a third-party application. In the discussion you can share your findings.

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