Our installer set up the system well should I say sort of, the system eventually failed due to some incompetent wiring, the battery was only working to about 50%. As regards battery charging schedule that was down to me, demo was I have left you a handbook.
After the failure they sent a more competent electrician he required the set up and set up the system correctly, I was considering an additional battery, but after the repair it works so much better so we have not bothered.
The soar/battery industry is attracting some cowboys, lucky we were covered by HIES
Unfortunately I have suffered a brain injury and occasionally I get confused and often say the wrong thing.