Ive got a Lutron Homeworks 4 Processor that is c. 15 years old, it has failed where there has been a power outage to the processor and the lithium battery on the PCB has not been able to provide power to retain the processors memory. Apparently this is a common issue with the systems.
I need to de solder the battery from the PCB and the solder a new battery in its place.
Below ive attached some photos of the PCB from both sides showing the battery etc.
Ive never undertaken something like this before and was looking for some tips / pointers, my main concern is damaging the PCB and heating the battery past its 100C temp limit whilst soldering.
Here are the photos: