Troubleshooting my DIY solar power supply

I had bought a 180W PERC solar panel along with 65Ah SMF battery and solar charge controller and setup a DIY power supply for ham radio. The battery was not getting charged well. Of course it is rainy season with dark clouds seen very often in the sky. Discussed with my friends on amateur radio 40m band and also on X (Twitter). Decided to check why charging is not as much as I had expected.