Everything posted by Jay-Dee
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Sunsynk feeding house / local grid from battery
I could not have said it better, I was about to start replying when yours came through... I am not interested in 3rd parties controlling my system and me having to rely on them working. In a house with kids and staff, things happen and things go offline... I want the functionality to be part of the inverter and chatting to a number of suppliers and installers, all agree that there is no good reason to for powering the non essentials by battery
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Sunsynk feeding house / local grid from battery
This would solve the problem if the problem was schedulable. The problem as per the initial postings, is I have a large AirConditioner (and oven) that can not be connected to essential or aux ports... During summer, I have excess PV that I would like to use to supplement or power the A/C entirely... If I untick limit to load only, it achieves this on a good day but if there is cloud cover / insufficient PV generation it uses the batteries to supply the difference. The net result is that the A/C or the likes will drain the batteries causing unnecessary wear and also leaving them depleted in the evening. While yes, using the schedule and limiting the battery SOC is a work around, it then creates an inefficient scenario on the essential side. I do understand that the rands and cents are the same as you are still using the same amount of power but it is not how I want it to work... The problem comes in with load shedding changes at short notice... I know my batteries can power my essential load without an issue from sunset to sunrise... So no matter what stage of load shedding we have, I am covered. During the day my PV generation is sufficient to cover my essential load and charge the batteries fully in good weather. The issues comes in to play on a bad day... If there is not enough PV, the batteries would be depleted by powering the non-essential items before sunset and this would be an issue if load shedding was higher than expected and I did not adjust the SOC values on the schedule accordingly. Not withstanding that I really don't want to constantly have to update the settings. Hope this makes a little more sense
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Sunsynk feeding house / local grid from battery
How do you prevent non essentials from discharging the battery? This happens no matter if Load or Battery first are selected on mine. If this does work on yours, please can you confirm the firmware version... Perhaps I need to upgrade.. I have avoided as mine works perfectly and has not had any issues but if I am missing this feature, I will definitely upgrade Sorry for asking the question before checking the manual online... Currently it is downloading blank pages and my printed copy is 2 or 3 year old, so I am sure it has been updated since.
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Sunsynk feeding house / local grid from battery
Sorry, I got myself confused in my previous reply (non-essential vs aux load confusion)... The battery does not feed back to the grid on mine either. I am trying to prevent it from powering my non-essential load (feeding back to my local house). This is my issue as I have a vast amount of excess PV during the day in summer that I want to be able to use to supplement my non-essential items but on a bad day, night or winter... I don't want these items to be supplemented / powered by the battery. It would seem, you have the same issue as me and others.. As was previously mentioned, it does not seem like this is a solvable problem
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Sunsynk feeding house / local grid from battery
EDITING this as I completely mis-worded my reply originally and got myself confused... Please ignore this reply 🙄 The initial question was not about the battery powering the non-essential load but rather the battery feeding back to the local grid. Has anyone found a way to stop this while still allowing batteries to power the essential load... i.e. I want to use my oven during the day via excess solar but on a cloudy day it must not be powered by batteries without having to change any settings each time
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Hubble Blade - How is it 10kw?
I realised this after Jason's comment above... Their marketing has always been sneaky / on the boarder of dishonest but this just pushes it to the next level in my mind While discharge rate is important and needs to be taking into account, I can assure you that most people will at first glance of the PDF think it is a 10kWh battery and then only realise afterwards. Dont get me wrong, I am still going to purchase AM2s and I still like their products (and have a number already) but I think they are a little too sneaky on their marketing with this one
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Hubble Blade - How is it 10kw?
Thank you... That sadly explains the pricing 😪 As they say... If it is too good to be true, it usually is
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Hubble Blade - How is it 10kw?
https://www.hubblelithium.co.za/_files/ugd/49fdd5_7fba8bb260364e3f9bc6c78b6b7020bf.pdf Can someone shed some light on these new batteries... At R55k for a 10kw they seem to be to good to be true From the spec sheet is is 140Ah but they say 10kw... This does not add up?? Anyone using them? Any good or better off with 2x AM2's? Thanks in advanced
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WANTED: Axpert 5K or 3K-48v
Hi all... I am looking for an Axpert 5K or an Axpert 3K-48v inverter 2nd hand in Cape Town Item Wanted: Axpert 5K or 3K-48v Desired Age: Second Hand Location: Cape Town or surrounds (+/- 100km max) Ballpark/Budget Amount: +/- R 6 000 to R 7 000 depending on age and condition Need to be able to test on collection (i.e. you need to have a 48v battery to connect to) or test on delivery to my in the southern suburbs (i.e. connect to my 48v battery)
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Quiet Budget Inverter - Does it exist?
I have heard that the SNA 5000 does not have fans but then I have also read that it has 2 fans but you can control the speed.... So I dont know 🙄
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Quiet Budget Inverter - Does it exist?
Hello all... I am hoping someone can help and point me in the right direction!!! I am looking for a quiet or silent inverter 3000w to 5000w in either 24 or 48v config (will consider 2000w if needed) but needs to be worth with lithium batteries (i.e. have adjustable low voltage settings) I have had Axperts in the past and know the fan noise under load and know it will be too loud an a small office environment. I dont need MPPTs or any fancy features which will hopefully help finding something Budget wise, needs to be Axpert pricing or less so Victrons are out too Thanks in advance
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Sunsynk feeding house / local grid from battery
Sadly not... If you do by some chance, please let me know
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Usable Capacity of Narada NPFC100 batteries, as recorded by ICM
That is the BMS going wonky!!! Pack 1 should be just over 500 now and pack 2 around 350, not 7500 🤣
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Hubble - Importance of Firmware upgrades
I ordered a cable from Diversified Solutions Web: www.DiversifiedSolutions.co.za Mail: [email protected] I am not sure if the one from Solar Assistant works too as I have not tried it, but you could ask them
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Hubble - Importance of Firmware upgrades
If you contact Hubble directly, they will send you the firmware and the program. They are very quick to respond
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Implications of Lithium Battery via voltage instead of BMS
If your battery is communicating correctly with the inverter, then leave it as it is.. Our / my issue is that the BMS on my batteries is not working 100% and resulting in issues
- Wago 221 connectors
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Data Loggers - Wifi-Plug-Pro-5
https://powerforum-store.co.za/products/sunsynk-wifi-data-logger Available on its own from a few places
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Implications of Lithium Battery via voltage instead of BMS
I have been following your thread on the BMS replacement... I am presuming you did this as your BMS was wonky like mine has become. I have been running this on voltage control with the Sunsynk... For the first 2 days, I ran it on AGM V and have now been running on AGM % for the last week and a bit. I am very comfortable with the voltage specs used as specified in the Narada spec sheet at 54.5v float and 54.0 charge... This seems to be working perfectly for me and I am getting perfect performance with dropping my batteries down to a daily 25% SOC based on the Sunsynks shunt measuring as this is keeping the voltage in the 48's and only dropping down under very large load at low SOC... At 25%, I am getting the expected 150Ah from my 2 batteries. For me, this is where I am going to leave it, so long as I dont have any issues down the line. I am using ICM to monitor the cells and keep an eye out for any other issues but so far so good
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Implications of Lithium Battery via voltage instead of BMS
Nope, constant 1C on the 48NPC100 model... The smaller ones are less but this was one of the specific reasons I chose this battery initially. Not that it is an issue any more as I cap it at 135A over the 2 batteries as more is not needed with a 5KW system
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Implications of Lithium Battery via voltage instead of BMS
I had not noticed that 🤣. I will let the developer know. He is great at fixing those sort of issues
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Usable Capacity of Narada NPFC100 batteries, as recorded by ICM
@Jonsfield... So I was incorrect in my thinking above. I have had to move my batteries off direct comms and via ICM for reasons I wont worry you with but I am now seeing exactly the same problem as you. I have contacted Manie about the problem and he is normally very good in fixing these sort of issues quickly. I will let you know the outcome
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Implications of Lithium Battery via voltage instead of BMS
To me, I considered the below well balanced.. Am I right or wrong? This is controlled via voltage to the battery and then obviously the internal BMS from there. Unfortunately, I could not see this info when it was controlled via BMS directly
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ICC VS Solar Assistant
Thanks... Dont have it live on solar, so will wait a while for it to launch properly as I dont want to purchase another install just yet
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Implications of Lithium Battery via voltage instead of BMS
and I would be willing to put money on it... This is exactly my issue. Newer Narada batteries actually have a different BMS and I suspect that this may have been one of the reasons they updated it