MacBook puts itself to sleep

@danj I have updated the screenshots with the laptop powered off for 13 hours as I got stuck on a call-out.

@eazy_pc_repairs - Its on the edge, you need to consider the restart load into this as well.

Can you get some deeper history from your client. Did they has a liquid spill onto the system? Do they tend to spray a cleaner on the screen allowing the cleaner to drip down?

Did you inspect the LVDS connector on the logic board for corrosion as well as the reset of the logic board?

@danj Cheers for the prompt reply. They told me when they dropped it into me that it's never been near liquid and the board itself looks good other than an ultra-thin film of dust here and there. They said that it started happening now and then over a year ago and then it got to the point where it would leave every time they logged in. I managed to stop it logging out by disabling logout on sleep. But they have not used the MacBook for over a year now due to this issue.

I have also taken the logic board out and cannot see signs of water damage and nothing under the microscope either.

As for the screen they say they have only ever needed to wipe it down with a microfiber cloth.

The battery readings do seem odd how they have dropped over a period of the MacBook being turn off, is this a sign of a short or bad battery?

I did find references to bad batteries causing sleep issues somewhere on the internet.

If there are any other questions you want me to relay to the client then feel free to ask :)

@eazy_pc_repairs - If you have access to a good battery I would give that a try. That fact the system was sitting for a year is not good for the battery as the cells where likely charged instead of being at the neutral middle point of charge.

@danj OK, Would this issue still occur if I was to disconnect the battery and run of AC Adaptor or would I been right in thinking if it’s battery-related then disconnecting would solve the issue till we ordered a new one. I would rather be sure than start ordering parts blindly, even though my suppliers returns policy is fantastic :)

If the issue still occurs with the battery disconnect is there still a good reason to order a new battery to try?

Sorry for all the questions & thanks for your help, I am very grateful to not have to figure all this out on my own. The last question, would my diode readings for pin 3/4 on the LCD connector that usually indicate bad solder ball under LP8550 also cause the random sleep cycle?