Battery for Lenovo Laptop

Frequently Asked Questions about Lenovo Battery

Q1. How long does a Lenovo Laptop battery last?

Rechargeable batteries wear out with time and usage. For the typical user, noticeable reduction in run time generally will occur after 12 to 18 months. The actual length of time varies based on battery size, charge/discharge cycles, and operating environment. Lenovo recommends buying a new Lenovo battery when the run time no longer meets your needs or as indicated by Lenovo Vantage.

Q2. What is a Watt-hour?

A Watt-hour (Wh) is a measure of the energy of a battery. A 50 Wh battery can provide 1W of power for 50 hours, or, more reasonably in a Laptop environment, 10W of power for 5 hours, or 5W of power for 10 hours.

Q3. Can a Lenovo Laptop battery be "overcharged"?

No, the battery is designed to stop using the charger when full charge is reached.

Q4. Is power used from the battery when docked, or when the AC adapter is plugged into a wall outlet?

When used with the power adapter which was shipped with your system or dock, your battery is not powering the system while plugged in or docked. If you use a power adapter with a lower wattage than was shipped with your system, it is possible that the battery may provide supplemental power to keep the system running or during peak CPU load.

Q5. Can I replace my own battery?

In some Laptop devices, the battery can be installed or removed easily; however, many newer Laptops have non-removable batteries. Refer to your User’s Guide to determine if your specific system battery is a Customer Replaceable Unit (CRU). Non-CRU batteries should be serviced by Lenovo authorized technicians only.

Following battery replacement, Lenovo recommends updating your system BIOS/EC Firmware and Lenovo Power Management Driver to the latest released version for your product. This will ensure you are taking advantage of the most recent power improvements and fixes.

Q6. Will Lenovo Laptops accept non-Lenovo batteries?

Yes,Computer manufacturers want to increase the sales of their laptop accessories. Many laptop makers install software in the laptop that alerts you when they do not detect their product. Our batteries are 100% compatible with Lenovo laptops and are often superior to the Lenovo brand batteries, but the pop-ups incorrectly give customers the perception that batteries other than the Lenovo brand are sub-standard.

How to disable the "Genuine Lenovo battery not attached" message 1. Go to the Control Panel located in the Windows Start Menu
2. Navigate to: ThinkPad Configuration > Power Manager > Power Scheme
3. On the Power Scheme screen click "Options" and then uncheck the box with "Periodically show messages about battery charge capacity" and Click Ok.
4. Restart your laptop. On startup you will no longer receive pop-ups regarding battery compatibility

Q7. What does Lenovo recommend for battery storage for a long period of time?

When storing for more than four months, these guidelines can better preserve the life of the battery:

Do not store batteries for long periods while plugged into or attached to any power source. This includes AC adapters and charging carts plugged into an outlet.

Laptop batteries, including those stored in systems, should maintain a storage temperature range as indicated in the Operating environment section of your User Guide.

Batteries may be stored inside or outside the Laptop enclosure.

Batteries should be stored while charged to no more than 40%. Due to natural discharge, even while not in use, stored batteries must be re-charged every 4 months back to 40%.

Q8. What can I do to make my battery last longer?

There are several things that will help the battery last longer:

Use the product's power saving controls to reduce battery use in a normal day. For example, turn Bluetooth off if not needed and reduce the screen brightness if possible.

Avoid exposure to extreme temperatures. If the system is exposed to extreme cold or hot temperatures, allow the system to warm up or cool down before use and before charging.

All batteries wear with use and time. When the runtime is no longer sufficient for your needs, consider purchasing a new Lenovo battery from shop.lenovo.com.

The Lenovo Vantage application provides several advanced battery management features. See the Power settings section under My Device Settings.

Additionally, Microsoft Windows Battery Saver Settings provides multiple ways to optimize your battery performance, including Battery Saver mode and lists of applications draining battery life

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Q9. Should I completely discharge my battery before I charge it?

No, with current lithium-ion batteries this practice does not improve the runtime of the battery.

Q10. Why does my system suddenly run out of battery when the gauge says I have some left? What should I do if the battery gauge seems inaccurate?

Your battery gauge may need to be re-calibrated. You can do this manually by fully charging the battery to 100%, waiting an hour with AC power connected, and then discharging the battery to less than 5% before attaching the AC adapter. You can do this automatically using the Battery Gauge Reset function within the Lenovo Vantage application. This will not change the amount of runtime you get from the battery, but will improve the accuracy of the gauge showing remaining battery life.