Hi All.

Apologies if it has been mentioned but couldn't really find anything.

Had an inverter (Fivestar WO8548 WiFi 6500W *8KVA* 48V) and 4 x 12MVR Monbat 180A since Sept. 2022 and used utility as charging. Not one day any issues with the inverter. (Batteries and inverter are the best cost for us at this stage)

 

11 March 2023 upgraded to:
10 x 350 Mon Solar Panels
12 x 12V Narada 180A

I want to keep it straight as possible.

1) Please could someone help with the correct settings for the inverter after panels have been installed. I'm really battling to get my head around the when something/what is used or wording like voltage point back to utility/batteries etc.

2) What according to you guys is the correct way to wire 12 x 12V batteries to get to 48V with Max AH. 

Will really appreciate your help on this. Even happy if you can help me on: Zero-Eight-Two [redacted by mods, please use PM]

Apologies, but couldn't upload the manual. Still need to compress it to less than 3MB

Have a great day and week.

Bani

Edited March 15, 20232 yr by Moderator2
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11 hours ago, BaniHolt said:

Hi All.

Apologies if it has been mentioned but couldn't really find anything.

Had an inverter (Fivestar WO8548 WiFi 6500W *8KVA* 48V) and 4 x 12MVR Monbat 180A since Sept. 2022 and used utility as charging. Not one day any issues with the inverter. (Batteries and inverter are the best cost for us at this stage)

 

11 March 2023 upgraded to:
10 x 350 Mon Solar Panels
12 x 12V Narada 180A

I want to keep it straight as possible.

1) Please could someone help with the correct settings for the inverter after panels have been installed. I'm really battling to get my head around the when something/what is used or wording like voltage point back to utility/batteries etc.

2) What according to you guys is the correct way to wire 12 x 12V batteries to get to 48V with Max AH. 

Will really appreciate your help on this. Even happy if you can help me on: Zero-Eight-Two[redacted by mods, please use PM]

Apologies, but couldn't upload the manual. Still need to compress it to less than 3MB

Have a great day and week.

Bani

There are 2 ways of connecting to get the 48V. Neither can provide more or less Ah. 

1. Connect 3 in parallel to create a large 540Ah battery. Then connect each of these in series to get 48V.

2. Connect 4 in series for a 48V bank. Then do the same with the next 4 and also for the last set. Then parallel these 3 banks via the 3x positives and the same with the 3 x negatives. 

Option 1 makes it easy to use a 4 battery  balancer to keep each of the bigger 540Ah batteries balanced. This balancing is not negotiable. 

Set float charging to 54V. Bulk charging to 57V.

Cut out at 48V.

Back to grid 52V

Back to battery 55V.

The 1st setting important. 

The next 2 is a starting point and can be fine tuned during use. 

 

@Scorp007

Thanks so much for the quick reply.

I will definitely try the 1st connection as this might be the easiest way for me now the way the batteries are standing.

Forgot to mention inverter is MPPT. 

Will read your post again to try and understand the setting but thanks in advance. 

All the best.

Bani

4 minutes ago, BaniHolt said:

@Scorp007

Thanks so much for the quick reply.

I will definitely try the 1st connection as this might be the easiest way for me now the way the batteries are standing.

Forgot to mention inverter is MPPT. 

Will read your post again to try and understand the setting but thanks in advance. 

All the best.

Bani

MPPT is only for solar panels if used so makes no difference to values provided.