Hi,
Obviously, this is moving the battery.
On the SYS80 boards, the original battery is soldered to the CPU board. But as it always ends up fleeing, it must be replaced.
Several solutions exist: capacitor, lithium battery. Some solder two wires in place of the battery and plug in off-the-shelf batteries.
The two wires most likely arrive at a battery holder.
There are two pods on the picture. It was simple, it had to be connected to a small battery.