Timeline for Laptop power supplies, does current matter?
Current License: CC BY-SA 2.5
4 events
| when toggle format | what | by | license | comment | |
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| Feb 18, 2011 at 3:38 | history | migrated | from serverfault.com (revisions) | ||
| Jun 30, 2009 at 12:42 | comment | added | tomfanning | Also you'll be needing to use P=V*I (or more specifically I=P/V) to calculate the number of amps current the laptop PSU is drawing from the mains. | |
| Jun 30, 2009 at 12:40 | comment | added | tomfanning | The kill-a-watt suggestion isn't ideal, as this will measure the power usage (in Watts) on the mains supply side of the laptop PSU. This will always read higher than the actual power usage of the laptop due to the inevitable inefficiencies in the power supply (typically 10-40%) | |
| May 4, 2009 at 22:45 | history | answered | John Fouhy | CC BY-SA 2.5 |