<![CDATA[Battery Module 13.2 - 2nd battery connector function?]]>What is the 2nd (unused) 2-pin battery connector on the circuit board of the Battery Module 13.2 (M120) intended for? Am I supposed to plug the original battery from the base Core2 device into that, instead of directly into the Core2 circuit board?

Or is this connector for a completely different function?

I can't find any circuit diagrams of the board for this module that would explain this and the circuit traces are not visible.

The connector I'm referring to is clearly shown in the following image:
https://shop.m5stack.com/cdn/shop/products/6_91290bf6-98bd-42f4-b3ff-6948d3c56c39_1200x1200.jpg

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