Lead Acid batteries for solar system?

If you still thinking which type of batteries to use for solar, then watch this video.
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[@Rezolution01]

Those batteries say 800 cca, so that's cold cranking amps. They're probably something like 50 amp hour based on the size of them. So the 4 of them in parallel like that is probably somewhere around 200 amp hour at 12v. So that battery bank would deliver about 2400 watts for one hour or 240 watts for 10 hours. If they were 100 amp hour batteries, you would get 240 watts for 20 hours. I honestly don't think they're 100 amp hour batteries though based on the size. If they're rated in cold cranking amps, they're not really meant for solar, they're meant for starting a car.

[@Rezolution01]

And are you using mppt or pwm charge controller?

[@VladFredK]

Nope, they’re exactly 190 Ah each

[@VladFredK]

Both but I fully charge them with battery car charger before I go sleep

[@Rezolution01]

@@VladFredK I don't think they're being honest about the 190 amp hour rating. I have AGM batteries that are literally twice that size and they're only rated 100 amp hour.

[@VladFredK]

@@Rezolution01 the size might be deceiving in the video, I had 190 Ah batteries before and they were same size. Just FYI these are about twice as big as my pick up truck battery

[@Rezolution01]

@@VladFredK oh ok, if they're twice as big as a car battery then it's possible. I thought they were smaller. It's possible something else is going on and one of the cells in one of the batteries is bad and it's dragging them all down.