How to solve the problem of Win7 laptop battery charge?

If you want to fully charge the battery, you should set the power management mode to “longest battery life”.

Here's how:

Start -> Control Panel, find the "Power" option, double-click to open (Figure 1). Then click the setting button in the middle right corner (Figure 2); you can see two power management modes (Figure 3), set the battery mode to the longest battery life.

Figure 1:

Figure 2:

Figure 3:

The longest battery life mode is to protect the battery and extend the battery life. Because the battery life and charging cycle are related, when using this mode, when the charging power reaches a certain value, the battery charging will be automatically cut off to protect the battery, so the above-mentioned charging charge is not enough.

Laptop battery is not charging Solution 1: Replace the battery or deep discharge.

If the battery is defective due to aging of the battery, we can only solve it by replacing the battery or deep discharge, but these actions may cause the battery to be damaged or unusable. So remember to be careful before you start.

Laptop battery is not charging Solution 2: Use the software method to refresh the battery.

IBM notebooks offer a "Battery MaxiMiser and Power Management" software that allows us to have a good solution for incorrect battery capacity display and reduced battery life. Running this software, the computer will automatically check and discharge the battery according to the state of the battery. When the program ends, it can be found that the difference between the actual capacity and the design capacity of the battery will become smaller (but still exists).

Laptop battery is not charging Solution 3: Use the firmware method to refresh the battery.

Some manufacturers have embedded the battery correction program into the BIOS firmware (such as ASUS). We only need to enter the BIOS to perform the battery correction program at boot time.

Laptop battery is not charging method 4: Use the built-in program to correct battery laptop battery maintenance.

1. If you have upgraded to Win7 system, you can use Win7 built-in function to correct the battery. The method is to enter the “Power Options” interface and select “High Performance”.

2. After clicking ““Change Plan Settings”, set all options under “Battery” to “Never” and set “Adjust Brightness Plan” to Maximum value.

3. Click ““Change Advanced Power Settings” at this time, expand “Wireless Adapter Settings & Rarr; Energy Saving Mode”, and set “Use Battery” to “Best Performance”. .

4, expand & ldquo; battery & rarr; low level battery power notification & rdquo; will <; use the battery & quoquo; set & ldquo; close & rdquo;. After saving the settings, close all applications. When the battery is fully charged, unplug the AC adapter, use the battery power to automatically turn it off, and then fully charge the battery in the off state.

Activation Processing:

The battery in the following cases needs to be activated:

1. New battery just activated.

2, because the battery is not used for a long time, the battery is left in the computer to save the state, and now when the battery is enabled.

3, do not use a laptop or battery for a long time to remove from the laptop for storage (more than two or three months), and then enable this battery.

How to activate the battery:

Activate the chemical in the battery to maximize the performance of the battery. It needs to be charged and discharged repeatedly (completely charged, then fully discharged) three times. . The so-called full charge and discharge means: the normal power-on battery causes the battery to consume 3% of the battery power (it is best to use it once, or it can be divided into several times to consume electricity, but it should not be too long), then the battery must be turned off and charged immediately. Twelve hours.

It is emphasized that the battery must be charged immediately because the battery will self-discharge even if it is not used. When the battery consumes 3% of power, if the battery is not charged in time, the self-discharge phenomenon is extremely high. It is easy to cause over-discharge of the battery and damage the battery. Over-discharge is a big taboo for lithium batteries.

When the battery is activated and charged, the machine must be turned off. If the machine waits, hangs, etc. at this time, when the green power status indicator no longer jumps after charging for 3~4 hours, the machine will automatically stop charging the battery, making it impossible to fully charge the battery. When discharging to 3% of the power, the machine will automatically enter the sleep state immediately. At this time, the machine should be restarted. When the machine is started, click the shutdown button at the bottom left of the screen to shut down the machine.

If the details of the above operations are well controlled and your battery quality is no problem, you can activate the chemicals in the battery to maximize the performance of the battery. Basically, the battery will be in the future. It can be charged to 100% every time in normal use.

Laptop batteries have been used for a long time, and they are often full of dissatisfaction and even display damage. Therefore, you must pay attention to some tips when using them: Whether your notebook uses lithium or NiMH, you should use the battery as much as possible. Refilling (power below 5%) is the best way to avoid memory effects. In fact, lithium-ion batteries also have a certain memory effect, but they are much smaller than nickel-metal hydride batteries. However, it should be noted that when charging, try to avoid too long, generally within 12 hours.

The battery life is not determined by the total usage time, but by the number of charge and discharge cycles. If the battery is always attached to the notebook without being removed, the battery will not remain fully charged as expected, even after the machine is turned off and AC power is removed. The laptop battery consumes power even when the computer is turned off because of the integrated control circuitry in the battery. As soon as the AC power is connected, the battery will start to charge. When the power is turned on or off, the battery will be repeatedly charged and discharged, which will affect the battery life.

Many notebooks have a built-in battery correction tool. Take the Lenovo Rising Sun C461M notebook as an example. If you use it for more than two years, the battery life is less than 40% before. With the help of the Lenovo accuracy correction tool, The battery life can be restored to more than 80%. For Lenovo's old notebook, it is recommended to upgrade the new version of the power management software, and then the battery power can not be charged.