ThinkPad battery maintenance methods are as follows:

　1. Please make sure you are using the correct AC power adapter for your ThinkPad model. Using the wrong adapter will prevent the battery from fully charging and may cause the battery scale to become inaccurate.

　2. Do not place the battery or ThinkPad computer in a high temperature environment.

　3. When storing the battery in a place other than the computer, please store it when its power is less than 50% to reduce battery aging.

4. If you use your computer with the AC adapter connected most of the time and only use battery power a few times, frequently charging the battery to 100% may accelerate battery aging. If you frequently use your ThinkPad computer on AC power, lower the battery's charge threshold.

5. If you have a lithium-ion or lithium polymer battery, learn about resetting the battery gauge.

6. If the battery has not been charged for a long time, charging will take a long time and must be reactivated using the battery scale settings.

7. If the battery is used in a low temperature environment, the battery performance will be temporarily reduced.

8. When a computer uses a large amount of power from the battery (for example, performing intensive calculations or using high-end graphics applications), the temperature of the battery and computer may rise. In this case, the battery may automatically stop charging so that the battery operates at a level that ensures comfortable use of the computer and normal battery life.