How to repair Lenovo laptop battery?

After a few years of use，the electricity in the Lenovo laptop battery can not be stored. Using the laptop for a while, then it will be dead. Even a little electricity does not exist, it can only used as desktop computer to use. If we buy a new laptop battery, it is a little expensive.

what method can make the battery restore a bit of storage capacity?

For the use of time within 1 year of Lenovo laptop battery life (battery storage capacity) time is shortened, Often not because the battery is aging, but because of the battery in the process of multiple charging and discharging, the notebook BIOS system has a false positive on the battery. Originally a little battery power, but the BIOS mistakenly think that power has been depleted, let the computer forcibly shut down. If there is such a short battery life, do not hurry to determine the battery quality problems, but through the "battery calibration" this simple and easy way to allow the battery storage capacity to give full play.
There are basically three ways to calibrate a battery: BIOS calibration, dedicated software calibration (depending on the computer model), and a simple calibration method that I'll talk about next

Method / step

1. Win7 system, click the lower right corner of the taskbar battery icon - "More Power Options"; enter the "Power Options" interface, select "high performance" power plan, click on the right of the "change plan settings" Under all options set to "never", and then set the computer screen brightness to maximum.

2. Then click to enter "change advanced power settings", including: "wireless adapter settings → energy-saving mode", "use the battery" is set to "maximum performance";
3. Expand "Battery → Low Battery Level Notification" and "Use Battery" to "Off"
4. Save settings, turn off all computer applications, when the battery is full, unplug the power AC adapter, battery-powered know that the battery runs out of power after the shutdown, the battery can be fully charged in the shutdown state. Finally, remember to restore the "High Performance" Power Plan "Restore Plan Defaults" after battery calibration!

Precautions

The so-called correction, when the actual capacity of the battery and control circuit in the recording capacity is not the same, the battery depth charge and discharge operation, so that the control circuit to refresh the record, so close to the actual battery, which is a real battery capacity。 The key factor here is the actual capacity of the battery. If the actual capacity of the battery is higher than the capacity recorded in the control circuit, the correction may make the battery appear to have increased capacity. If the actual capacity of the battery is larger than that of the control circuit Record capacity is low, then the correction will make the battery looks reduced capacity, which is why many people arguing about the effect of calibration.
please remember that the correction is to make the laptop battery real capacity presented to eliminate the battery and the control circuit. Deviations, as to show the capacity will increase or decrease, this is the state of the battery itself rather than your correction decision. It is possible that the battery is damaged due to the deep discharge during calibration, but the capacity will drop greatly!