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What time do I need to swap out the power source for my computer?

What time do I need to swap out the power source for my computer?

A
Amtrak10
Senior Member
639
06-21-2026, 06:17 AM
#1
How do I figure out how good my laptop's battery is? There are apps like BatteryInfoView that show me the numbers, but they don't tell me if it's a must-fix or just something to keep an eye on. Is this right? The real way to check health is running the command `batterycfg /batteryreport` and dividing Full Charge Capacity by Design Capacity... But, what number should I look for as a safe minimum? I searched online and got mixed results. Some say Macs need replacing below 80%, while others suggest Windows laptops might only be okay until under 40%. Any tips would be great!
A
Amtrak10
06-21-2026, 06:17 AM #1

How do I figure out how good my laptop's battery is? There are apps like BatteryInfoView that show me the numbers, but they don't tell me if it's a must-fix or just something to keep an eye on. Is this right? The real way to check health is running the command `batterycfg /batteryreport` and dividing Full Charge Capacity by Design Capacity... But, what number should I look for as a safe minimum? I searched online and got mixed results. Some say Macs need replacing below 80%, while others suggest Windows laptops might only be okay until under 40%. Any tips would be great!

9
992x
Senior Member
506
07-03-2026, 06:07 PM
#2
Don't stress too much; just swap out the battery if it's completely dead or can't power your device anymore.
9
992x
07-03-2026, 06:07 PM #2

Don't stress too much; just swap out the battery if it's completely dead or can't power your device anymore.