If you wanna have the need to open the battery and bypass it, you'll have to resolder one of the cables, but I need better close ups to see the board from other views.
If you don't wanna open the batteries, but unlock the battery on the spot, you'll need the serial number of the battery, and possibly the four digit/letter code under the qr code to figure out the matching key. I don't remember if the qr code was in the algorithm or not (used to calculate another byte array) but it wouldn't hurt to try that since I don't remember if it was the battery serial number, the qr code, or both.