Compatible Laptop Models:

01AV421 01AV419 01AV489 SB10K97577 SB10K97576 SB10K97578 01AV420

Compatible Part Numbers:

Fit for Lenovo ThinkPad T470 Series
Fit for Lenovo ThinkPad T480 Series
Fit for Lenovo ThinkPad A475 Series
Fit for Lenovo ThinkPad A485 Series
Fit for Lenovo ThinkPad TP25 (Anniversary Edition 25) Series

Kindly Note:

The 01AV421 01AV419 battery is an internal battery, you should remove your laptop back case to replace it with screwdrivers, if you need the external battery
for Lenovo ThinkPad T470 T480 A475 A485 TP25 series laptops, please scroll down to find it.

Laptop Battery Maintenance Tips:

1. When using your new battery for the first time, you need to prime the battery by charging it to 100% and discharging it to 20% for 3 times. If you don't know how to
install a new laptop battery, you can search "How to install a new laptop battery?" on website.

2. DO NOT let the battery drain to 0%: If you constantly let it drain to 0%, the battery becomes unstable will be seriously degraded.

3. DO NOT keep your battery always fully charged: Just like emptying your battery to 0%, keeping your battery permanently charged at 100% is very harmful. As time goes by, this will increase its internal resistance and reduce its capacity.

4. Perform regular charging cycles: If you don't use your Laptop battery very often, it is important to cycle it (discharge => charge) regularly, at least once a month. Please store the unused battery fully charged. Do not store at low power to prevent reduce the lifespan of a battery.

Easy Ways To Maximize Battery Life:

1. Change your laptop power plan settings. I would suggest you choose the power saver plan. Then Change advanced power settings, scroll down to find Processor power management. Click the On-battery option and reduce the processor state to 20%.

2. Always keep your laptop neat and clean. The dust easily enters the hardware through the vents which are meant to release the heat generated from various computer components. It then blocks the vents preventing the outflow of the heat. This damages the computer parts including the battery.

3. Close Wi-Fi, Bluetooth, and other settings. You should keep the Bluetooth and WiFi off when you're watching movies or doing other things which don't require network
connectivity. This can help your computer save precious battery life.