Huawei mate8 battery price_ Huawei mate8 charges very slowly after replacing the battery

Hello everyone , I'm wang Jun , An architect who can write code and recite poetry . Today, let's talk about Huawei mate8 Battery price _ Huawei mate8 Charging is extremely slow after changing the battery , I hope it can help you make progress !!!

1. Preface

Huawei leg 8 mobile phone -4+64 I didn't charge it last week , When charging, I found that it couldn't be charged , The charging light flashed , Probably 1 Every second , Then it flashed 20 many times , I'm blind . Beat the drum several times , Occasionally appear on the screen “ Red charging icon ”, however 2-3 Seconds disappeared , Still dead after that , Ah ah , I am so surprised . What do I do ？

Baidu , Here's why , But it is of no damn use , Charge again 1 One and a half hours , Still like that （ The battery starved , Direct deactivation , Don't waste time ）：

The reasons why the mobile phone can't be charged and the solutions are as follows ： 1、 The first reason is poor interface , You can wipe the dust with a cotton stick , Clean... Clean , Ensure smooth power on . 2、 The second reason is the poor contact between the data cable of the charger and the tail plug of the mobile phone , Replace a good data cable to return to normal . 3、 The third reason is that the charger does not match the mobile phone , For example, some support fast charging , Some don't support , You can update the charger .

I still have a battery in my hand , After disassembly , The mobile phone is normal , The battery should be starved ！！

Youdu Niang , Activate successfully as follows ！ As follows ：

1.1 Tools

1. A multimeter
2. 12 v 1 Ann （ The current is greater than 1A I don't know if there will be a problem ）, Don't ask me , I don't know either .
3. 2 A wire clip
4. Remove the mobile phone tools

Here are my tools and equipment ：

1. 2 Determine whether the battery has been locked ？

Judge whether the battery is locked , here Need a common maintenance tool —— A multimeter . Operation method ：

Turn the multimeter to DC voltage , The black and red probes are respectively connected to both ends of the battery interface to measure the voltage .

In general , When the cell phone battery is at its lowest level, there should be 3.5V Left and right voltage , If the voltage is 0V, Even close to OV when , It means that the battery has been locked up without charging for a long time , At this time, you can't charge it directly with the data cable .

1. Here I measured my electromagnetic , yes 2.6v about , It seems that I'm starving .
2. The positive and negative poles of electromagnetism are easy to find , It's easy to see .

You need to force a power supply to the battery , Activate the battery , To charge normally .

1.3 Find the positive and negative poles

How to distinguish the positive and negative poles of mobile phone batteries ？

When activating the battery , Be sure to distinguish the positive and negative poles of the battery , There are two ways .

Method 1 ： The label on the back of the battery

On the back of the cell phone battery 【 Trash 】 Icon position , There is a plus and minus sign ,+ Represents the positive pole of the battery ,- Represents the negative pole of the battery . When the battery is energized , Add power to the positive pole , Connect to the breadboard .

Method 2 ： Use a multimeter to distinguish

In actual maintenance , Using a multimeter can also easily distinguish the positive and negative poles of the mobile phone battery .

Operation method ：

The red probe is connected to the positive pole , The black probe is connected to the negative pole , The multimeter will show a power supply ; conversely , If the probe is reversed , A negative number will be displayed on the multimeter .

1.4 Start activating the battery

When we correctly distinguish the positive and negative poles of the battery , Adjust the voltage of the adjustable power meter to 4.2V, The current is adjusted to 1A about , Connect the boot cable to charge the battery .

The red probe of the power on line is clamped with the positive pole of the multimeter , The black probe of the power on line is clamped with the negative pole of the multimeter , Contact the positive and negative poles of the battery respectively .

Be careful , Don't connect the positive and negative polarity wrong , After contact, the ammeter will show current , Charge about 10 About seconds （ This is not 10 second , from 2.6v To 3.82 It will take a few minutes , You can see the voltage rise little by little on the multimeter , Be careful not to inflate ）, The battery is activated. Look , At this time, measure the battery voltage with a multimeter , You can go there. 3V Above , At this time, use the data cable to charge the battery , It's normal .

here , The actual operation details are as follows ：

1. During power on , You will see the voltage rise bit by bit , Then it rises to 3.4V, Test the battery again 3.14V, Press on the phone , Charge , Not yet. , It means that the voltage is not enough , Keep going .
2. Because the battery voltage of Huawei is 3.82V, So this time it went straight to 3.82v, Then press on the phone , Charge , ha-ha ,, Seeing the red light doesn't flash , Activation successful ！！

That's the end of today's article , Thank you for reading ,Java Architects must see I wish you a promotion and a raise , Good luck every year .