T30 flickers when running on battery

[thomaslp]

I have a T30. When it is running on battery the lcd starts to flicker a bit. If I hook it up to an external monitor there is no flicker running on battery. There is no problems as long as the power supply is attached to the laptop. Could this be the inverter? I do not know much about inverters or LCD's but in my mind it is not the inverter since it works when the power supply is plugged in.

Please give me you oppinion before I go and buy a new inverter.

[tfflivemb2]

Welcome to the forum!

Does the LCD flicker when on battery power if you raise the LCD brightness all the way up?

Also, when you are plugged in, does the LCD flicker when the LCD brightness is turned down low?

[thomaslp]

Hi,

thank you for your reply. It flickers when on battery and I turn the light up.

I have not tried to turn the light down when running on power supply. I will check that tonight.

[thomaslp]

Hi again,

i did a little more testing. When plugged in the laptop does not flicker at all. Only when running on battery and the brigtness of the LCD does not matter. On all levels I see flicker. If i turn down the brightness the flickering is less remarkable.

Thomas

[tfflivemb2]

Have you noticed any red tint in your LCD at boot? If not, I am going to guess that it might be your inverter...

[joester]

I'm curious about the state of the battery. What voltage does it report when the flickering occurs, and what voltage when fully charged?

Could be one of the infamous choke solder joints, or a bad connection in the battery circuit too.

Joe

[thomaslp]

Sorry for my late response. I was away from the "project" for some time. I found another battery and that has solved the problem. Thank you for your help.