Hi, I recently had to replace the smaller battery of my Nissan Serena C27, but now the aircond keeps resetting itself after I switch off the car for an hour. Very troublesome to have to press back my settings every time. Has anyone had this problem before and how to fix it? Thanks in advance.

almost all 4 worn out, rear is a bit better compare to front.
Always rotate at 10k and only able to last for like 1.5 yrs (~30k km).