In case the battery has screws, place and tighten the screws. Use a low torque setting, and do not over-tighten the screws to avoid damaging the screw holes.
In case the battery was glued, use super glue to glue the lid back on. Use the glue sparingly.
Step 2:
Fasten the two aluminium terminal nuts (hand-tight).
Take care that the top of the nut is at least 2 to 3 mm under the top of the battery terminal.
Do not over-tighten the nut to prevent the cover from being pulled down too much and possibly damaged.
Step 3:
The spare circuit board came with a new serial number sticker including puk code and other details.