Does your battery seem less able to charge? Is your phone suddenly shutting down several times a week by itself? Before bringing him to a repairer, we suggest that you assess the health of your battery by carrying out a small check-up..
Make a complete battery diagnosis
The lithium-ion batteries integrated in smartphones lose their autonomy over the months. Little by little, the charge is no longer done completely. To avoid unexpected extinctions, many users replace the batteries in their devices.
Obviously this repair is not free. Prices vary depending on the models and the type of battery installed. It takes between 30 and 90 euros for this type of intervention. This represents a substantial budget for many people..
Before embarking on such expenses, it is therefore necessary to check carefully that this decrease in autonomy is linked to battery wear and not to incorrect settings or excessive use of system resources. We will see in the rest of this article how to assess the performance of your battery.
Know the state of wear of the battery
There are different solutions for checking the battery status of your smartphone. You can either use the hidden menu of Android or go through a battery analysis application. The latter will measure the wear of the battery and give you different technical information (remaining capacity, charging time, battery level, original capacity, etc.)
- Launch the phone application on your smartphone
- Display the telephone keypad
- Type the following code: * # * # 4636 # * # *
- A new window will appear automatically
- Select the option Battery information
- Locate the number to the right of the Battery level
If the number displayed is less than 80, it indicates that the battery has started to lose part of its capacity. Obviously, the older the device, the lower the number is likely to be. To help you accurately determine the battery wear, you can also refer to the battery status line..
Application to manage battery usage
The Ammeter application is one of its utilities that should be installed on your smartphone. Thanks to it, you will be able to measure the level of wear of the battery and know exactly the charging time.
Ammeter also has a function to be notified by an audible signal as soon as the battery is full. 
You will also find various information there such as for example the temperature of the accumulator, the version number of Android as well as the real capacity of the battery .
Battery conservation tips
The tools mentioned above will help you to roughly estimate the useful life of your smartphone's battery. The data is provided for information only. Obviously it is you afterwards who would decide or not to proceed to its replacement.
However, be aware that there are different tips to preserve the autonomy of your device. If your battery drains too quickly, you can for example decrease the brightness of the screen or turn off the Wi-Fi when you are not using it.
Owners of phones equipped with an Amoled screen will also be able to use a black wallpaper. Many forget it and yet the dark images reduce the electrical consumption of the latest generation tiles. Finally, last important point, also consider disabling applications that run in the background on Android.