4 batteries serial and parallel connection

Question

question

beavis asked Jun 19, '23

4 batteries serial and parallel connection

I am connecting 4 AGM 12v batteries serial and parallel to get 24v. Is it OK to connect loads and shunt like in picture from opposite batteries or should I connect both battery terminals to collection post and from there to load and shunt?

battery connection

1687150290188.png (11.3 KiB)

2 |3000

Attachments: Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

klim8skeptic answered · Jun 22, 2023 at 08:21 AM

@beavis KISS.

Balanced with 2 links per series pair.

2 |3000

Attachments: Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

Modifications Space

Node Red Space

Answer 1 · 2023-06-19T05:18:28Z

nesswill answered · Jun 19, 2023 at 05:18 AM

See section 4.8

Wiring Unlimited (victronenergy.com)

2 |3000

Attachments: Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

Answer 2 · 2023-06-19T09:16:38Z

klim8skeptic answered · Jun 19, 2023 at 09:16 AM

@beavis your diagram gives an unbalanced current from each series battery pair.

1 series pair has 1 short link, the other series pair has 3 short links.

2 |3000

Attachments: Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

Answer 3 · 2023-06-19T11:02:40Z

beavis answered · Jun 19, 2023 at 11:02 AM

OK, so I will use same length cables on battery connections and connection post for loads.

1687172542046.png (12.2 KiB)

1

2 |3000

Attachments: Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

klim8skeptic ♦ commented · Jun 19, 2023 at 11:45 AM

@beavis KISS.

Balanced with 2 links per series pair.

3 ·

kiss.png (44.5 KiB)

question