Acer Aspire 5672Wlmi battery problem

Hi, I am new to the forum and am a little bit uncertain if this is the correct place to post this so please excuse me if I got it all wrong.

I have an Acer Aspire 5672Wlmi and recently my battery went completely dead. I went to the Acer website to find out that they are out of stock which meant that I am out of luck. A quick search on amazon gave me some promising results and a few days ago I bought a battery that is an equivalent of the one I need.

If I try to boot the computer using the battery I get an error saying that I have the wrong battery and I should insert the correct battery and press any key. This message is shown immediately after the Acer logo flashes momentarily during the POST so I guess this restriction comes from Acer's BIOS. Right now it seems my chances of having the right battery are as high as being able to find a key that says "any" o my keyboard.

However I know that the battery is fine because it runs fine if I insert it once the latop has booted. Even if I remove the power plug after that it runs just fine. Also the fact that I am able to read the message when the latop is running only on battery is sufficient to convince me that my battery is fine and my BIOS is wrong.

My questions is, what should I do to fix this problem? I have already contacted the seller but I thought you guys might know more about how to fix this. I guess it would involve flashing the bios which is fine with me.

If it matters for the BIOS version, the laptop was bought in the UK.

 

Any solution for this problem? I have the same one.