Laptop runs too slow when charging.

Aditya123456

Estimable
Jan 30, 2015
20
0
4,560
0
Hello,
I have a Dell Inspiron 3521, with a 45 Whr battery and a 90 watt charger.
The laptop runs too slow when charging and eats the battery life like crazy when doing any intensive work.
Initially it used to last 4 hrs with the screen on in 2013, Now it lasts barely an hour, when I am lucky (Doing less intensive work). Meanwhile running chrome with 40 tabs open gives me just about 40 min.
 

Aditya123456

Estimable
Jan 30, 2015
20
0
4,560
0


I tested it in Ubuntu 16.04, Fedora 21, Linux mint 18,
and also Windows 8 (Original which came with my laptop), Windows 8.1, and Windows 10, after upgrading each of them to another,
And then Finally, also WIndows 7 (fresh install).
All the Windows were on Balanced power plan (The default settings), and if I put it on Power saver, it runs too slow Windows 8.1 and down. In windows 10, it runs fast albeit very low battery.

 
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