I can t connect to the computer, I can only charge, what should I do if the computer is connected bu

Method 1: Restart. The easiest way. The success rate is 5%.

Method 2: 1. Shut down, unplug the power supply, and unplug the battery.

2. Plug in the power supply and turn it on.

3. Turn off the power and unplug the power.

4. Plug in the battery and plug in the power supply. At this time, you should be able to see the battery display light on, which means that it can be charged normally!

5. Turn it on. The message "Power is on, charging" is displayed. The success rate is 90%.

Method 3: The most popular and helpless method on the Internet - find customer service and send it for repair. The success rate is 100%.

Due to the large number of versions, the interface may change. Please refer to the actual interface.

Hardware problems: 1. First, use a multimeter to check whether the power supply of the power socket is 220V, and replace the use environment if the voltage is unstable.

2. Whether the output voltage and current of the power adapter of the multimeter are consistent with those marked.

3. If it is inconsistent, then there must be a problem with the power adapter and needs to be replaced. If normal.

4. Then the problem is generally in the battery and motherboard. This needs to be sent to the service station to find an engineer to solve.

Hello, glad for your question! 1.There is a problem with the power plug:

Check the power plug to see if it is plugged in securely, the head may be damaged, or the plug is in poor contact. 2.There is a problem with the power adapter:

Check the power adapter to see if there are any signs of burnout, or if the output voltage is unstable. 3.There is a problem with the battery:

If both the power plug and adapter are fine, check the battery to see if it is damaged, or if the battery is low. Or it is a long time without recharging the battery internal power loss is serious, the computer charging automatic protection, this situation can wait for a period of time to try, I hope it can help you <>

The computer is connected to the power supply and shows the reason for not charging and the solution:

1. Check if the charging function is disabled.

The laptop has a "no charging" function in the battery option, and the adapter directly supplies power to the laptop without charging the battery, in which case it cannot be charged. It is recommended to check the battery options to see if the charging function of the notebook is disabled, of course the win8 system is slightly different.

2. Check if the charger is original.

If the charger is not the original charger to charge the computer, sometimes the computer display link can not be charged, if this situation is recommended, it is recommended to use the original charger to charge the computer, and you can buy it if you don't have it.

3. Battery display plan.

In the battery options, click on the display plan used by the computer in the display plan, as shown in the figure below, click to change advanced power settings to check whether the power supply is used, of course, some computers have a display plan for maintaining the computer, and selecting this plan will also cause the power supply to be connected and not charging.

4. Check the battery level of your computer.

If the computer battery is in the 90% range, in order to maintain the battery, the computer will sometimes not be charged when connected to the power supply.

5. Poor contact and battery damage.

The battery has the number of charges and the service life, and the battery that exceeds the service life and the number of charges will of course be linked and cannot be charged. Sometimes the computer's charging port may become loose and the battery port cannot be connected.

6. The charger and battery are loose.

Damage to the charger will also cause the power connection to not be charged, try to change the charger of the same brand, if it is the reason for the charger, change it. It is possible that the battery is not installed or the battery is loose, and the computer interface cannot be connected, etc., if it is loose, it is good to reinstall it.

1. Cause analysis.

1. Software problems.

Generally speaking, many computer brands such as Dell, Lenovo, Sony, etc., will equip their laptops with power management software, if a certain "battery protection mode" is enabled, the power management software will disable the battery charging and discharging after detecting the user's use of AC power, so as to extend the battery life. So, if you find that your laptop is not charging, you can first go to the relevant power management software, turn off the battery protection mode or check the no charging option, and if there is no problem with the hardware, the battery will be able to charge.

2. There is a problem with the hardware itself, the battery itself has a hardware failure, generally speaking, we can use to restart the computer, replug and unplug the battery to judge, if the battery still cannot be charged, you may wish to install some hardware detection applications to get the approximate battery loss reference information. If it is determined that the battery hardware is faulty, do not open it by yourself or try to repair it, there is a certain risk, it is recommended to take it for repair.

2. Security repair methods.

When the computer starts up, enter the BIOS, usually find the "Start Battery Calibration" option in the Power project, that is, "Start Battery Repair", generally speaking, the user will be reminded to connect the power adapter for full charging, and then the text will be displayed to prompt the user to disconnect the AC power supply, the Win7 system will continue to discharge the notebook until the power is completely exhausted, and then the notebook will automatically shut down, We can connect the power adapter to charge, but don't turn it on, and the whole process will be complete only after the charging indicator is off. Security fixes: enter the BIOS when the computer starts, usually find the "Start Battery Calibration" option in the Power project, that is, "Start Battery Calibration", generally speaking, the user will be reminded to connect the power adapter for full charging, and then the text will be displayed to prompt the user to disconnect the AC power supply, the win7 system will continue to discharge the notebook until the power is completely exhausted, and then the notebook will automatically shut down, We can connect the power adapter to charge, but don't turn it on, and the whole process will be completed after the charging indicator is off.

Note: The BIOS battery repair process can take up to 5 hours, so be sure to do it when you don't need to use the laptop, if this still doesn't improve the battery condition, then it can only be said that the battery is probably broken, you can send it for repair or buy a new original battery.

The above is an introduction to the relevant reasons why the laptop cannot be charged, and I hope that the problems you encounter can be solved. Generally speaking, when we encounter the problem that the laptop cannot be charged, we must first analyze it, and there may be problems with the software and hardware, and find a corresponding way to fix it. If it still can't be solved, it is recommended that friends who do not know the computer well do not disassemble the computer by themselves, or take the laptop to the after-sales maintenance outlets and find professional technicians to repair it.

You should be using this software.

There are two patterns ...

1 – Control Panel – Power Tab.

2 – Change the schedule settings.

3 – Change the power supply advanced settings.

4 - Lenovo power management - start Lenovo power management software 5 - set it yourself.

The computer is only recharged when it is lower than 90%, and the computer power supply is not passed through the battery at the lowest charging value, and the battery is in a disconnected state at this time. Each brand is different

That's probably because the battery is broken, I used to be like this, it should be that the battery temperature is too high, burned out Replace it with a new one Remember to use AC more often, unplug the battery, but you can't use it all the time, the battery is not activated, and it will be scrapped

Another problem is that after you adjust the charging ratio of the software, you need to shut down the computer, unplug the power plug, then plug it in, turn it on, and the settings will be effective.

Other floors say it's a friend of hardware problems.,This Lenovo computer is actually a problem with software settings.,Protecting the battery is the first thing to cause.。

Dear Lou Pig, The computer charging is automatically protected, the battery is saturated, it will not be flushed, you can unplug the power supply, play for a while, and when you plug in the power supply, it will show that it is charging.

Let's see if it's a problem with the power supply, either your plug-in board is broken, then the power cord, and finally the battery.

Is there a problem with the power cord?

For the problem of laptop battery not charging, there are several reasons from the software side:

1. Drive; 2. Power management software.

Drive power management software.

Today's laptops also provide power management software for easy battery setup and management. And in this there is an important function. That is, the battery is in charging mode. There are two charging modes in Lenovo's power management.

Longest battery life and best battery life. The best battery life is designed to ensure the life of the battery. In order to avoid excessive charging and discharging of the battery.

When the battery level is about 60% (note: depending on the model, this proportion is also different), the battery will stop charging, so that the number of charging times of the battery can be reduced, and the life of the battery will not be shortened because there is no power inside the battery. And this is a lot in the fault of the battery not charging.

So be sure to check this. Here are a few examples of how to illustrate:

Power Management Software:

Power management. Optimal battery life: If you mainly use the power adapter and only use the battery occasionally, the battery will often be at 100% and the life decay rate will be accelerated. By selecting this mode, the battery can be charged up to 60%, which improves cell attenuation, prolongs battery life, and better protects your battery.

So set it to this mode. When the battery reaches about 60%, it will not be recharged.

Power management. If you set it to battery care mode here, it will stop charging when it is charged to about 60%, so be sure to check whether the charging mode of the battery is correct.

Be sure to select the correct battery usage mode, otherwise it will not be fully charged. How it works:

In the bottom left corner of your computer, click Start - All Programs - Lenovo - Energy Management - Power Options - Select the maximum battery life.

Note: Due to the large number of versions, the interface may change. Please refer to the actual interface.

Hardware problem: First, use the multimeter to check whether the power supply of the power socket is 220V, if the voltage is unstable, change the use environment, and then use the multimeter to see if the output voltage and current of the power adapter are consistent with the marked.

If it is not consistent, then there is definitely something wrong with the power adapter and it needs to be replaced. If normal.

Then the problem is generally with the battery and the motherboard. This needs to be sent to the service station to find an engineer to solve.

In fact, this is a very good function of power management, which can keep your computer's battery in the best state of maintenance, and you can use power management to adjust back to the maximum battery life, so that the computer battery can be fully charged, but if you don't need to use the battery, it is better to maintain the best maintenance state, my computer is like this.

There are several ways to do this.

1；Take your laptop battery off, plug it in and see if it starts, and if it does, check if the battery is damaged.

2；The adapter is broken, or there is a problem with the charging circuit.

3；Related to the power mode, mine is set to the maximum battery life mode, it will automatically charge to 80%, and then keep the state of "power on, not charged", in this way, the battery life will be longer, and after a while, it will start to charge again.

If you don't want to do this, you can change the power mode, and the general Lenovo machine can be set to the maximum battery life, and it can be fully charged all the time.

Hope it works for you.