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Anyone have any idea why my laptop would perform (considerably) better while on battery than while plugged in? It's a Dell Latitude E6420 with Windows 8 Pro. I tried mirroring all the settings in the selected power plan from "On battery" to "Plugged In" and that didn't help. I then just restored the defaults for all power plans (balanced and high performance). I'm still seeing the same results.
The best example where it is most noticeable (don't laugh) is Sim City Social in Chrome. I'm probably seeing a performance increase of 5x on battery versus plugged in. This is easily reproducible too.
I'm very confused.
Could it be caused by dust?
The laptop isn't that old and there is no visible dust. I'm not going to take it apart to check the insides as it's a corporate laptop.
Could it be overheating?
Battery
- Sim City Social: 68 degrees max
- Civ V: 77 degrees max
Charger
- Sim City Social: 68
- Civ V: did not test
See answer below... I'm retarded
1A possible reason is overheating. While on net power the battery is charged, generating more heat than not on net power. Could you check that the laptop is dust free and add that to the post? Oh, and optionally run GPU-Z and CPU-Z or other temp. software to either confirm of deny this problem? – Hennes – 2012-10-28T21:20:52.600
Since this was basically a "false alarm" why not delete the question then? Prevents someone coming to this question and finding a NULL. – Assad Ebrahim – 2014-05-10T10:41:36.603