My Macbook Pro says I'm connected to a power source even when unplugged

I have a Macbook Pro mid-2010 (Macbook 7,1) that is acting a bit weird. The battery status always says I'm connected to a power source even when the charger is unplugged. The battery still discharges, but the battery status says I'm connected to a power source. The exception is when I'm at the login screen, where the battery status displayed in the menu bar will be correct.

What I have tried to do:

• Done a clean install of Mavericks
• Reset SMC
• Reset PRAM
• Reinstalling the battery
• Using another charger
• Boot from my Macbook's original HDD

But to no avail.

Additional information: I just got my Macbook back from repair where they changed a faulty logic board. I have an Optibay installed where the CD-drive used to be and I have upgraded to 8 GB RAM. For the last 1-2 years I've been getting the "Service battery" in the battery status, but I have never had any issues with the battery before.

What do you think might be causing this, and how can I fix it?

(Screenshots taken while charger was unplugged).

Solution 1:

this is how i fixed mine. I went to "energy saver preferences" in "system preferences", and went to "power adapter" at the top, then i clicked "show battery status in menu" option off then on again and that seemed to work for me.

Hope this helps!