Pacmanmb
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Status Updates posted by Pacmanmb
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Any idea how to read protocols off 2 standard Axpert inverters in parallel - cannot get watts off #2 or is their a calculation formula to use
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I have 20 100ah batteries which I am changing to a different config - 5x4 in series - then parallel four banks - from 100ah - should make the entire bank at 400ah with 20 batteries - now will the axpert inverter handle tis
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Hi @Pacmanmb, it is actually 500ah
An 500Ah bank must be charged at 10-13% of the bank capacity, so in your case you should then charge the bank at 50 amps to keep them healthy. I assume that Axpert is a 48 volt model and most of them comes standard with a 60 amp MPPT charger, so you will take it close to its maximum.
I hope you have enough panels to produce enough power to do this.
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My apologies - mine is V 72.9
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Oh. I've had suspicions that 72.90 only came with clones, so you should also check Do I Own a Clone? Some clones can't be updated at all, unfortunately. Otherwise, my comments about 73.00 and 73.00e stand.
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Maybe you can help as well - also have 5ka unit running v 72.49 - which is not working for me at all - seems this was designed to a ups system. No matter what I change during the day solar only charges my batteries. if I switch off the grid then works fine. How can I downgrade or upgrade to what version. Mate has the same system as me with V 72.4 and works fine - your help will be appreciated.
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You didn't say what exact model of 5 kVA model you have, so see Can I update my firmware, and if so, to what? to be sure. But it sounds like you have an older 5 kVA / 4 kW model, in which case you can downgrade to 72.40 if you want, but you could also update to 73.00 factory firmware or 73.00e patched firmware.
I've not heard of firmware version 72.49 at all, so I'd say it was short lived, perhaps due to bugs such as you have found.
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What does #13 (back to discharge voltage) actually - have been playing with that and seems it does nothing - default is 54v - so does any one know what it actually means
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I assume that you are referring to setting 13 for Axpert inverter-chargers. It's the "back to battery" setting. When other settings are suitable (particularly Output Source Priority, setting 01), this is the battery voltage above which the inverter will switch from line mode (bypass, utility is supplying loads) to battery mode (battery + solar supplies loads). But if for example setting 01 is Uti, however, it will have no effect; you are telling the inverter to stay in line mode whenever AC input is present.
This is all reasonably well described in the manuals. You didn't say what model you have; if it's an Axpert MKS-5K for example, the manual is here.
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What does #13 (back to discharge voltage) actually - have been playing with that and seems it does nothing - default is 54v - so does any one know what it actually means
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Hi Chris - I have 20 102ah batteries already connected to my system - obvious 4x5 strings to give me the 48v - what now is the best way forward in terms of balancing all these batteries. currently all 5 strings are in parallel but I need to optimise the best of these batteries as they are only 6 months old. What would you advise
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Hi Pacmanmb
Did you come right in the mean time ?
Our battery balancers should be in stock by Mon/Tuesday latest
Please let me know at [email protected] should you require any.
You will only need 5 balancers
Thanks
Chris-r
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I do need the - but also found out that the ICC software is screwing me around so have switched back Watchpower and made a huge difference - sent an email but also want to know where you guy's are - also looking for firmware for my inverter - running 72.9 and need to downgrade or upgrade to version 73.0e
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whats the best way to string 20 12v batteries onto a 5 kva inverter - obvious 4 x 12 - but from there on - all 5 banks in series or in parallel
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Hi - Advice with an Axpert 5 Kva unit - with 15 x 275w panels max - with 20 x 102ah batteries - just not getting the effiency from these batteries - should I rather split the battery bank with 2 inverters as it seems I never get SOC off one inverter - and also was not advised not to use max 60a bulk charge - use one inverter just to charge 12 batteries and use that to run inverter 2 to run the house off 8 batteries
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Hi Chris - have an axpert 5kva - have 15x 275w panels with 20x Osaka 102a/h batteries - and just can seem to get the system right. I believe it is the inverter so have ordered another from a different supplier. It seems the inverter I have has the wrong version of firmware. Am running 72.9 and see the latest is 73.0b to stop the inverter switching to grid for no reason. Also what would you recommend for all the battery settings. They are gel and my system is not even 6 months old and with 20 batteries does not even last during the night pulling about max 1000w
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Have 20 x gel 102 a/h batteries - what should I charge them at bulk and float - have so many different answers - keep them at 56.4 and float at 54 or 57.6 and float at 55.2
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Also having a huge problem with the AXpert inverter kicking in and out of grid - mainly during the day with full panel voltage and batteries full state with the panels doing all the work, but for some reason the inverter kicks in as soon as there is like a 800w change in power. Is this a firmware problem, my inverter is all of 6 moths old running ver 79.2 and I see that 70.b is out - someone help me out here
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I have 20 x gel 12 102/ah batteries - what is the best settings for these - currently set for AGM on the inverter and was told can go higher with float and bulk charge - any advice
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