Before buying, confirm your battery’s actual health. Windows has a built-in tool that provides a detailed history and capacity report.
A proper report for buying a laptop battery covers everything from diagnosing whether you actually need a new one to ensuring the replacement you buy is safe and compatible. 1. Pre-Purchase Diagnostics buy laptop battery
: If your laptop’s casing or trackpad is bulging, the battery is likely swelling—this is a fire hazard and requires immediate replacement. 2. Identifying the Correct Battery Before buying, confirm your battery’s actual health
Never rely on just the laptop model name. You must match the specific battery part number. Caring for your battery in Windows - Microsoft Support Identifying the Correct Battery Never rely on just
: Open Command Prompt as administrator and type powercfg /batteryreport .
: Compare this to the "Design Capacity." If the full charge capacity is below 70% , it is generally time to replace it.