In the left side of your probe I see the battery has a connector (wires from battery to the motherboard). Is it possible to remove that connector and take pictures ? Can you use this connector to connect to the battery ?
Red is the normal connector for data communication. There is a ribbon cable that goes from there to the far right of screen.
Orange i have found are test point. When assembled orange contacts aren't in use.
So what I have seen so far the only way to connect is to design something that fits into the ribbon cable connector slot. Or something that is low profile that will slip or magnetically connect to the test points.
I'm surprised no one else has tested these a2113 batteries. Let me know if you have other questions or need more photos
This thread will be closed soon. We will create dedicated threads for each request/battery pinout, better structuring.
Look on internet for A2113 pictures I can see that the board is detachable and part of the battery. In this case probably it could work to use alligator probes or those probes that have spring inside: