Growatt SPF500ES lead acid batteries question

[MikeMynis]

Hi, I'm planning to use a Growatt SPF 5000 ES with 8 x 450W solar panels input. No grid connection.
I already have 8 12V/260Ah batteries here, designed for storing 'solar' energy.

How do I calculate how many 12 Volt 260Ah batteries I need or the Growatt can handle?
At least 4 in series. Then I have 48Volt, 260Ah.
Or can I add a second array of 4 batteries and connect this one parallel to the first array? (Making 48V 520 Ah)

Can a Growatt SPF 5000 ES handle this?

Please help me calculate some numbers here

Mike

 

[MikeMynis]

Already answered here https://diysolarforum.com/threads/this-is-my-schematic-is-it-correct.38797/#post-492477 by @MisterSandals!