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What's DOS?
Posts: 1
Registered: ‎04-17-2018
Location: US
Views: 505
Message 1 of 2

Thinkpad W540 screen flickering when low battery

Once my Thinkpad W540 gets low on battery (like 35% or so), the right side of my screen starts to flicker, and doesn't stop till it's plugged back in. I tried updating the drivers on the Lenovo support site, but that hasn't helped, and I'm not sure what else to do.

Punch Card
Posts: 24
Registered: ‎03-26-2018
Location: GB
Views: 485
Message 2 of 2

Re: Thinkpad W540 screen flickering when low battery

It sounds to me like the battery is incapable of delivering enough power to the system as a whole below 35%, which kind of implies two things, one the battery is defective, or (more likely) that you have increased the draw on the CPU by using something like Intels tuning tools to ramp up performance (or running power manager on performance mode on battery).

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