The mobile phone can't be charged, and an icon shows that it is being charged when the charger is connected. When it is removed together with the universal rechargeable battery, it can be recharged. W

The mobile phone can't be charged, and an icon shows that it is being charged when the charger is connected. When it is removed together with the universal rechargeable battery, it can be recharged. What is the reason? An answer is urgently needed. I typed thousands of words in detail, but considering that most people have no patience, I still prescribe the right medicine.

But I'm not a professional, so don't spray if you answer wrong.

1, universal charged energy rushed in, indicating that the battery is ok.

2. The mobile phone shows that it is charging, so neither the mobile phone nor the thread is damaged.

The charger has a variable voltage function, which allows the voltage of 220V to charge the mobile phone battery at a certain voltage. Considering the resistance, it is natural to charge the battery with a certain current.

Why can't you fill it in?

Can only think that the current is too small.

The reason why the current is too small: there are too many things in 1 and LZ, so charge quickly. 2. Poor contact between the connector and the mobile phone

The reasons are as follows: the elasticity of the "small hook" of the thread tip is reduced due to frequent insertion, which makes the thread tip have poor contact with the mobile phone and increases the resistance of the contact part (the resistance is related to the material, length and thickness, not to mention).

The result of increased resistance:

Generally speaking, the charging voltage is 5V and the current is1a-2.1a. Calculate the resistance yourself. I won't talk about the influence of a little increase in resistance.

My experience:

My situation is similar to LZ (I have never used a universal charger and always thought it was a battery problem). Later, when my brother came back, he accidentally found that his charger could be charged. Later, I went to buy a charger. In the shop, the manager brought me a new wire and a new charging head. For the first time, I took a 20-yuan 5V, 1A charger (a new line that has been used all the time), and I couldn't charge it. I changed it to a 30-yuan charging head (5V, he said that the greater the current, the better. I think so, so I asked him to take the expensive one, 69 yuan's 5V, which belongs to the dragon. It seems to be a brand product (for IPAD). Unexpectedly, my mobile phone is an ordinary smart phone. Maybe it has something to do with it, I don't know, or I took a defective product? I really don't know. So I bought a 30-yuan charging head and a new cord and went home. Then the new head+old line shows that 44% is charged and not charged; New head+new line display charging 40%, rechargeable; Old man+old line, showing 43% charging, unable to charge; Old man+new line shows that it can be charged by 37%, and it is found that it is charged quickly by accident.

So, what do I want to express?

LZ, I'd better buy a new charging head and cable, but if the old charging head is not broken, I'll still use the original one.

Generally speaking, you can charge 2%-3% of the electricity in 4 minutes by closing all programs and turning off the screen (you can do the math yourself).

Ok, a lot of nonsense, LZ will adopt it if it helps!