Max voltage at battery connector

I’m thinking of powering a CubeCell from a supercap, in order to more accurately estimate power consumption.
What’s the maximum voltage the LiPo battery input(via the connector) will tolerate?

dont connect a cap to the battery connector.
the battery connector is connected to a charging circuit and is for LiPo batteries only.

I was never thinking of trying to charge the capacitor from the CubeCell…
I may be daft, but I’m not stupid.
This is just for a test to try and establish power consumption.

no one said anything about beeing stupid.
but if you connect your cap to the battery connector the integrated charging circuit will try to charge the cap if connected to usb or other external power

Like I said, I wasn’t planning on doing that.
But thanks anyway.