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

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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.

R

Rexty_
Senior Member

568

07-12-2026, 11:57 AM

#3

Your computer's battery needs a special tool to tell you how well it is working. When do you need to swap the battery? Plan for a new one if you see that you aren't running as long as before.

R

Rexty_

07-12-2026, 11:57 AM #3

Your computer's battery needs a special tool to tell you how well it is working. When do you need to swap the battery? Plan for a new one if you see that you aren't running as long as before.

D

Darthdread1
Member

56

07-12-2026, 12:43 PM

#4

Thanks, that sounds good to us too!

D

Darthdread1

07-12-2026, 12:43 PM #4

Thanks, that sounds good to us too!