If you don t use a power bank to charge it, you will have less power

For example, mobile phones, how long is the standby time after a full charge of more than 1000 mAh, and how long can it be placed after a full charge of 11200 mAh. Although it is said that there is a little bit of running power, but the situation you described seems to be too serious, you charge it again to try to see if it is the first time the mobile power is used to cause such a phenomenon

This is normal.

The power bank will slowly lose power when not in use. This is because the mobile circuit is always connected, will be affected by the external temperature and humidity, the power of the power supply itself will slowly lose, but this loss process is very slow, will not lose much, if it is too much loss may be the quality of the power supply.

The power bank will self-discharge is a problem that cannot be solved at present, but it is very slow to self-discharge, a 11200 mAh power bank, under normal circumstances, will be placed for half a year. Charging the mobile phone can generally be charged 6-8 times, and you are about to run out of power after charging 3 times now, there may be quality problems, or false standards; You focus on how many times you can charge your phone after it is fully charged, As for the power display grid, you don't have to care, just like your own mobile phone battery, the first and last grids will be used for a long time, and there will be no more in the middle. Shenzhen Huayirong mobile power supply.

There's electromagnetic interference, so there's less electricity

If the power bank leaks, there is not much difference with the mobile phone battery, the mobile phone battery is not used when it is turned off, and it will only leak slightly for 2 days, and the mobile power supply is about the same. You can charge and discharge it a few more times to see, after it is fully charged, it will be used up, and then it will be fully charged.

Change brands, such as Pineng, Sino, Miri.

Recharge after putting it or almost finishing. The so-called finished, in fact, is not finished, because the over-discharge protection of the battery protection board is, that is, it is put to hard protection. However, in order to ensure that the MCU can start normally, the power bank is generally turned off, and there will be no damage to the battery at this time.

Note that after using up the electricity, do not leave it for a long time and then recharge, which will cause damage to the battery, because the self-discharge of the battery cell and the power consumption of the MCU, after being turned off, if it is left for too long, the standby current and self-discharge will make the battery reach the hardware protection voltage, that is, if it is not charged in time, the battery will still self-discharge, so that the battery will easily die.

It is best to charge as you go, that is, you will have the opportunity to fully charge the battery after use, so that the life is the longest.

I've sold mobile phones before. If you have a new mobile phone, it is best to use no power and then flush, the first three times with a straight flush enough for 12 hours, in order to maintain the battery, it is best to charge each charge for no less than 6 hours in the future, I hope it can help you, if you are good, I recommend it.

The specific situation of the mobile power bank (power bank) charging the mobile phone is not full and the power is as follows:

First, the capacity of the power bank (power bank) is less than the capacity of the mobile phone battery, so it will cause such a situation.

For example, the capacity marked on the mobile phone battery is 5000 mAh, and the mobile power bank (power bank) is only 2500 mAh capacity, that is, the mobile power bank (power bank) is out of power if the mobile phone is not fully charged.

Second, the loss rate of charging of mobile power supply (power bank).

There will be a loss in the charging process of the mobile power bank (power bank), that is to say, the loss rate is 80%, so the actual charging capacity of the power bank (power bank) is only 2000 mAh.

Third, the capacity of the mobile power bank (power bank) is falsely marked, resulting in a dead battery without fully charging the mobile phone battery.

That is, the actual capacity of the mobile power supply (power bank) is 5000 mAh, but it is marked with 10000 mAh, so it cannot achieve the actual charging effect.

Of course, if you play while charging while charging, it is also possible to run out of power if the phone is not fully charged.

I bought a product with a false standard. If you charge 1600mAh only once, the capacity is only about 2500mAh, which is less than half.

According to the current technology, even if the conversion rate is not good enough, it is actually about 60%, so this product is only 2700mAh.

Of course, if you play while charging, it will also consume a lot of power. If it's just standby when charging, it's a lot of false marking.

The capacity of 5000 mAh is also 3500mAh according to 70%, which can be charged at least twice. If the mobile power supply is an inferior cell, the battery cell may not reach the capacity, or it is a new cell but lacks capacity.

The power of the power bank itself is not necessarily enough, and there is still a loss when charging.

What you should worry about is whether it will bulge after a long time, not run the electricity, and the power bank should be thrown away if it is bulging.

That's right, it will automatically discharge, so you have to charge it again after using it for a long time, otherwise the battery will be broken.

The estimate of 1w milliampere is 1860 garbage cells, domestic is love to blow water, generally speaking, the flush is not enough, it is caused by the voltage of your mobile power supply is not enough, this is not a polymer mobile power supply is unreliable. Not only the efficiency is low, but also the rush is not satisfied. This only gives you a full power supply to see if the voltage will be a little higher.

It may be that the charging voltage and charging current required by the mobile phone are too high, and the output voltage and current value of the mobile power supply will automatically stop after a period of output.

There is a problem with the power bank itself. Some mobile power supply boost effect is not good, after its own voltage drops to a certain extent, for example, when there is still 900 1500mA left, its own voltage drop will be very strong, the output is far lower than 5V or its own output circuit is problematic, the output effect is very poor, after converting the output, a certain amount of power will be lost, resulting in the actual power that the power supply itself can output is much lower than the nominal value.

Or the quality of the power bank is poor, and the insufficient capacity of the power bank itself will also cause the battery to be fully charged.

According to your description, I will make a brief analysis: the charging voltage of the mobile phone is 5V, and the mobile power supply you purchased can charge the mobile phone when it is fully charged, indicating that the output voltage should be able to reach 5V at this time, but with the decrease of power, the voltage will also decrease, and the voltage may not reach 5V in the end, so there is a situation where the charge is not enough.

It's probably also a virtual standard capacity, and it's not a good cell, and the conversion rate is quite low. It's normal for the above to happen.

This must be a problem with the power supply, because now a lot of mobile power on the market are taking the route of the copycat mobile phone, it is recommended that you buy it again to buy the brand of mobile power in the regular store, I use the Lianfeng brand mobile power is very good, you can go to the Internet to learn about it.

The voltage of the mobile power supply is unstable, find the shopkeeper to change it, if it is the kind of less than 100 yuan and more than 10,000 capacity, forget it, cheap and not good!

What you bought must be the kind of inferior battery that the false label must not be fully charged, it is recommended that you buy a better power supply, and recommend to you a brand that I personally use, the quality is very good, it is called Aiwo, you can go and see.

Recharge after putting it or almost finishing.

The so-called finished, in fact, is not finished, because the over-discharge protection of the battery protection board is, that is, it is put to hard protection.

However, in order to ensure that the MCU can start normally, the power bank is generally turned off, and there will be no damage to the battery at this time.

Note that after using up the electricity, do not leave it for a long time and then recharge, which will cause damage to the battery, because the self-discharge of the battery cell and the power consumption of the MCU, after being turned off, if it is left for too long, the standby current and self-discharge will make the battery reach the hardware protection voltage, that is, if it is not charged in time, the battery will still self-discharge, so that the battery will easily die.