Flickering screen while using on battery. Lenovo Y70-40

[crazytardis]

Hi,

I have Lenovo Y70-40 laptop with flickering screen. If the laptop is on AC power/ charging, everything is fine. The flickering starts as soon as the power adapter is disconnected and the laptop is running on battery. The flickering becomes worse to the point where it is unusable. Once the laptop is plugged into the outlet, the flickering stops.
I have no clue what is wrong with the screen. Please help.
Thanks

 

[Hellfire13]

ur battery is probably dying...try another battery to eliminate that possibility first...

 

[Seankay]

Probably it is battery but I want you to check this too before deciding on changing the battery: https://forums.lenovo.com/t5/Lenovo-P-Y-and-Z-series/screen-fickering-on-Y40-80-on-battery/td-p/2066369

 

[crazytardis]

Yeh. I will try that but for now, the hdd is dead with clicking sound. So i need to take care of it first. ty for input.

 

[Hellfire13]

sure...keep us posted...

 

[crazytardis]

Changing the setting didn't help. now the option will be replacing the battery.

 

[Hellfire13]

u can test it with a spare one first to check whether the battery is indeed the source of the issue...

 

[Seankay]

Replacing the battery should fix it then!

 

[Hellfire13]

very very likely...90% it shd...but its just to eliminate that other 10% that i asked u to test first...thr is no permamnet gurantee for electronic components...

on the contrary, if ur screen has some issue, then the battery cannot fix tht...all the more i asked u to test first...

 

[crazytardis]

I tested with an external monitor. the external display has no issue. the flickering is only on built-in display. So i suspect the faulty part would be the display panel. i saw some people has similar issue on lenovo forum. i think i will replace the display first.

 

[Hellfire13]

thats a gud thing u did...smart move to test out the battery with an external display...if the laptop can power an external display without issues, only on a battery, then ur battery is fine...i also think u shd concentrate on the display now...