MisterSandals

I don't think that the batteries should really draw a few thousand watts when they're fully charged. I've never seen mine draw more...

We don't know anything, that's why we're 17 pages into speculation.

If it were me, i'd charge them both completely full with good long absorb. Then put them into service and see how they behave before...

Conjuring @Will Prowse

Probably around 2000Wh per day. Thats 84W at 33% duty cycle (20 mins per hour).

It’s easy to test. Disconnect solar (asap!) and connect the battery. If it powers up and displays in app you are good. If it prompts...

To this day I can't leave a battery on concrete without hearing my Dad's voice booming in my head!

What is the "unit"? Is the battery full? Are the panels in series and partially shaded? Happen to have any pics?

200Ah / 200A = 1h 200Ah / 100A = 2h 200Ah / 50A = 4h

Hmm, i don't see why they should be the same. I have cutting board sheets between to prevent conduction between cells. I have cement...

Wait wut? What's the problem with sitting on cement board?

What is the Voc of your panels and how do you expect to wire them? (3S2P or 2S3P?)

What was the event that caused the fuse to blow initially? That looks like 275A and there are a few batteries connected to a bus bar...

2S3P has a different meaning. As for what you have i'd say 2S in parallel with 2P.

I should have remembered that. Fun fact: -40C = -40F (= 233K for completeness).

Kelvin reference voltage? They're catering to the nerds if thats the case. 25C = 298K -20C = 253K -.27% x 47 deg K = 12.69%

And note that .35% was my guesstimate.

An example of how this works: Lets use an array with a Voc of 130V. And lowest temp is 0C (32F). And temp coefficient of .35% 0C is a...

The fixed limit is Voltage and you need to calculatate what that is based on temperatures mentioned earlier in the thread. Then to get...

Look for the temp coefficient. It is the voltage change per degree C above or below 25C (77F). Usually around .35%.