What could be the problem?

Hi @lauriealexander

What is the full model number of the laptop as shown on the product information label on the bottom of the laptop?

Is the replacement battery an OEM battery or only a compatible one?

Things to check:

• Create a battery report and check the state of the battery. In the report, compare the Design Capacity value versus the Full Charge capacity value. For a new good battery they should be nearly the same.
• Uninstall the battery drivers in Device Manager and then restart the laptop and check. Windows will auto install the drivers after the restart. To get to Device manager in win 10, press the Win key + x key (both together) and click on the Device Manager link. When in Device manager scroll down to the battery category and right click on the Microsoft ACPI Compliant Control Method battery entry and click on Uninstall and follow the prompts.