Improve the life of the battery on t420s

Hi guys, I have recently switched to Ubuntu for my laptop to work, which is currently I have a new T420S. I have the standard battery on the bootom of laptop and also the extra battery on the Bay slim, I'd say that I'd be lucky to get 2.5 hours with the two batterys fully charged. I noticed that the fan is always on and there is no software I can find who can control or regulate the speed of the cpu fan and it seems that his constantly at 100% whish I think is the cause of my problem of battery life. Everyone here with success of Ubuntu running on their T420s and have had similar problems?

Thanks in advance

not really had time to tinker and try to solve this problem, so I switched to a macbook air, it works and build so much higher quality compared to the plastic t420s

Tags: ThinkPad Notebooks

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