Why does Lenovo G450 sometimes not charge

The G450 I also use does not have this situation, it is best to take it to the sales office to check, when the battery is fully charged, it will not show that it is charging.

Why does Lenovo G50-80 charge not as fast as electricity?

Hello, I am happy to serve you and make the following answer for you: The reason why Lenovo G50-80 does not charge fast may be that the battery is damaged or the battery is in poor contact. Workaround:

1.Check the battery: Disassemble the computer, check if the battery is damaged, if it is damaged, you can replace it with a new one.

2.Check the battery contact: disassemble the computer, check whether the battery contact is good, if it is bad, you can use a cotton swab dipped in a small amount of detergent to clean the battery contact to ensure that the battery is in good contact.

3.Check the battery driver: Check whether the battery driver is normal, if not, you can reinstall the Nianbi limb battery driver to ensure that the battery is working properly.

Personal tip: The battery is an important part of the computer, check the status of the battery regularly to ensure the normal use of the computer.

Is your computer not responding at all? Generally, if the adapter is connected normally, the battery light should be on (the logo is with a plug), if the battery is used, the battery light is on, if the power is insufficient, it will flash, if the adapter light is really flashing and the battery light is not on, and the adapter is not broken, it should be a problem with the connection line, that is, it does not supply power to the power supply and the main wrench, and it should be repaired.

If you confirm that the connection is in good contact, disconnect all the electricity and go to the local after-sales service for inspection.

After-sales inquiry method.

The laptop shows that the power is on, and the reason why it is not charged is because the battery has a protection mode, and it will stop charging when it reaches a certain charging threshold. If you want to change it, just change the power mode.

Change Power Mode:

2. In the pop-up power management interface, select the power mode according to your actual needs. From left to right: Energy Star mode, High Performance mode, Balanced mode, Super Energy Saving mode, as the yellow icon selected in this example means "High Performance Mode"; As shown in Fig

Tell you,It's to play the computer often use the power adapter,For the sake of battery life,And turn off the battery power,Mine is Lenovo G470,Often use the adapter,This ensures that the battery is in the maintenance period,If you use the battery,It's not convenient to use the adapter,Turn on the power for more options,Choose the performance one,Don't plug the adapter into the socket,I hope it will be useful to you。

This is a notebook with a battery protection feature. It starts charging when it is below a certain level, and mine is also G470, and I set it to 25 percent. You look inside the power settings and you can change it. I asked my computer science senior, and I changed my own.

First of all, you need to judge whether your power supply is good. You can see if the indicator light of the power supply is on, if it is on, it is not a big problem. If the power supply is good, it's your laptop motherboard or battery problem. This machine is still under warranty, you can go to the after-sales maintenance!

Please consider replacing the battery! Mine is the same.

There is no reaction after pressing the power button.

Fault phenomenon: After powering on, the screen does not have any display, and no "dripping" sound of the motherboard speaker is heard.

Fault analysis: The internal BIOS data of the COMS chip of the motherboard is damaged by CIH virus or static electricity, etc., and cannot be read, and the system cannot complete the self-test when it starts, so it cannot be started.

Known solution: Contact the motherboard manufacturer to replace the COMS chip with a new one or find the BIOS file provided by the motherboard manufacturer and write it to the burner.

Fault phenomenon: After pressing the power button, the optical drive light flashes, the motherboard power prompt light is on, and the power supply is normal, but the screen is not displayed, and there is no "drip" sound.

Fault analysis: This phenomenon occurs after the CUP is damaged, the BIOS first checks the CPU during the self-test process, the CPU is damaged and cannot pass the self-test, and the computer cannot be started.

Known workarounds: Check if the CPU is installed correctly, check if the CPU core is damaged, check if the CPU is damaged using the replacement method, and replace the CPU if it is damaged.

Fault phenomenon: there is no display or prompt when the boot is turned on, the motherboard power supply is normal, the cup is normal, the fan is normal, but the screen is not displayed. There is no "drip" sound of passing the self-test.

Fault analysis: After the computer is used for more than 3 years, the voltage of the battery that powers the BIOS settings gradually decreases, and the data cannot be saved.

Known solution: Buy the lithium battery of CR2032, replace the existing battery on the motherboard to complete the self-test normally, and then reset the BIOS parameters.

Fault phenomenon: After pressing the power button, the computer will automatically shut down or have no response.

Fault analysis: In order to protect the CPU from the heat dissipation device, some motherboard manufacturers will fail to boot when the CPU is not installed or the CPU fan is not connected to the CPU fan interface of the motherboard, or the CPU fan is connected to the SFAN (the interface of the system fan).

Known solution: Correctly connect the CPU fan to the power connector of the motherboard, and make sure that it is connected to the three-core dedicated CPU fan connector of the CFAN next to the CPU.

Lenovo G450 can't turn on the solution:

1. Disconnect the power supply after disassembling the battery, press the switch several times to release the static electricity, and check whether it is powered on after connecting the power supply;

2. Press F8 when you boot the computer to see if you can enter the safe mode, uninstall the abnormal software if you can, and then check and kill the virus;

3. Reloading the system;

4. If the reinstallation system cannot solve the problem, it can only be repaired and after-sales warranty processing.

Dear Lenovo users, you can try to disconnect the power supply after removing the battery, press the on/off button several times repeatedly to release the static electricity, and then check whether to turn on the computer after connecting the power supply.

If this is not possible, it is recommended that you contact your local service station and the service station's engineer will check the specific situation for you.

Lenovo service station information inquiry.

It must be a hardware failure, plus a power failure, it is recommended that you replace the power supply first, other common reasons: the memory is loose or the memory itself is problematic, reinsert the memory or change the root memory to try; The power supply chip of the motherboard is soldered or aged, the screen cable is loose or the motherboard short-circuits the power supply circuit of the screen; Graphics card, south bridge, north bridge BGA packaging chip virtual soldering or damage, generally there are more virtual soldering, just add soldering. Notebook hardware questions answered.

If there is a problem with the motherboard, it can be repaired.

It is possible that the battery itself is a hardware failure. Generally speaking, we can tell by restarting the computer and replugging the battery, and if the battery still won't charge, we might as well install some hardware detection app to see if the battery is wearing too much.

Problems with the adapter, the failure of the adapter will also lead to the above problems, but it can generally be detected, if you press the adapter for a long time to work, if there is a problem, it will power off by itself, which is very easy to detect.

1. First of all, check whether the battery charging is disabled in the laptop battery settings, and some laptop battery management software also has the function of disabling charging, you can check it;

2. It may also be because the battery has been put for too long and has not been used, resulting in poor contact, it is recommended to open the laptop to clean the dust, unplug the power cord and battery, and it may also be solved.

3. If there is no problem with the check settings, then most of the problems with the internal control circuit or battery cell of the notebook win7 system need to be repaired.

4. When some laptop batteries have been used for a long time and are over-discharged, resulting in 0% of the available power supply has been turned on and not charged, and it will be repaired later, even if it is repaired, the battery life and life will not be long, it is best to buy a new laptop battery to replace it.