Dex_

you are charging them at ~33A each which is perfectly fine.

what issues are you seeing at the moment? so that people can advise accordingly on best replacements?

Hi Rob, Is this easily available online?

60A is good i believe. I think if you adjust your other settings as above it should be in order.

sorry i meant to say your float is higher than your bulk, your bulk should be higher. from your document your current float is 54 and bulk is 50? which of those models do you have and how many? it will depend on what you make setting 2 imo your settings should be: 02 - depends on answer above? 05 - USE 12 - 48 13 - 51 26 - 53.2 27 - 52 29 - 47.5

are you completely off grid?

king FTW

Do you have info on your battery model? your bulk setting is higher than your float as a start which is wrong.

holy fffff poooooo

why not just bolt the brackets down? Otherwise building lintels would work perfectly... you could bolt a regular frame to them, just drill carefully. edit: i think rubicon has them also...

yeah pop your area for recommendations as well as what you currently have, i.e inverter model and batteries etc.

I am no expert but no... your strings at least need to be close enough to each other that is a massive difference I would be interested to hear differently. you could however put the other string on a seperate charge controller potentially i beleive would be the easiest

you need to give more info on your system and symptoms

27- you should have somewhere between 50.3-52V - for me personally 52V works well. 29 - is also a bit on the low side, personally i keep mine at 47.5V, you should have this closer to what you make setting 12, make it slightly lower, so for example if you went with setting 12 as 48V then ,make it 47.5, if you went with say 46 then make it 45.5V the typical recommendation is 2 - 30A (20A/25A for the us2000) 12 - 48 13 - 51 26 - 53.2 27 - 50.3 - 52 29 - 47.5 i have seen it as quite common for people to lower 12, 13 and 29 to run the batteries deeper, personally i would start closer to the suggest and lower it as you experiment. Just note that you will get an error 04 (battery low) when you get within 2V of setting 12 - for me personally i live with it because i run SUB so only run on battery when utility is down and i would rather save the battery a bit, though if i needed to I would let it run deeper but i would play with it to see what works within reason. some guys will also push 27 up to the bulk charge value (i.e 53.2)

4.8Kw is a bit high no? I am assuming you are factoring for losses but you could see it spike sometimes... what are settings 2, 27, 29? 26 is too high - you should lower this to 53.2V - you are probably never charging properly as the bms is hopefully stopping you 12 and 13 are too low imo also - suggested is 12 - 48V 13 - 51V if you are running on battery before utility and want to drain them more you can probably lower them a bit, maybe try 46 and 49 and for your actual issue - it sounds like you are experiencing the same as these people: https://powerforum.co.za/topic/4288-axpert-inverter-switching-to-battery-power-at-midday/

you think it will work with those brackets? send me a pic when you are done so i can copy you 😛

yeah, I am very happy i went in 2's rather. sure the cost is a bit more on the cabling and combiner but why stress the inverter to its limits, you save now you pay later....

of course... my bad xD

I would personally keep them separate since you should more easily be able to than people adding to a single system. I would still only put them in 2's. 3 in series is going to be >15A? even 2 will be? where does the 1000VDC and 15A come from?

you seem to have his exact requirement as your system, what is your amp charge setting 2?

Yep

according to pylontech they can be mixed yes

Program 02: here i am actually not that sure but i suspect 30A Program 05: USE Program 12: 48V Program 13: 51V Program 26: 53.2V Program 29: 47.5V you should also set 27 somewhere between 50.3-52V note these are Axpert values, your corresponding should imo be similar?

combiner boxes normally contain your fuses and surge protection. inline fuses are better than nothing but imo you still want proper type 1 or 2 protection

shouldn't you work on the open circuit voltage? i personally would put them in 2's i would go with 12 per inverter, giving you a total of 108 panels