BasZ

SOLD Selling a BlueNova BN52V-154-8k battery (8kWh) Spec sheet: https://batterydistributors.co.za/product/blue-nova-bn52v-154-8k-2/ The battery is from december 2018, has been in use for 6 years (2 years warranty remaining). I do not know the cycle count (how can I check this?). The battery recently went back to Bluenova to have a faulty battery cell and LED screen replaced + upgrade to the BMS. No longer using since this battery was not working well with the Bluenova SBB. Battery is in Noordhoek, Cape Town. Looking for R15k, excl shipping.

If your question was directed at me: I am travelling, only back end of july, so can only send then. Pls send a reminder if you would like to see my setup, OK? My setup: MPPT: Victron Inverters: 2 Axperts in parallel Battery: Blue Nova controller: Victron CCGX

Hi all. My VRM is up and running for a while now and all is great, but now I would like to be able to correlate by PV production to sunlight hours in my particular location. Has anyone tried this yet? Is it possible to show sunlight hours in VRM (am asking this also on the Victron forum), and if not, how to do it outside VRM? I have seen that Victron has integrated a radiation sensor, but it costs something in the range of 600 euros, and am looking for something a lot more affordable. Many thanks

So, just to let you know that with the new settings I am in a much better space with my system. I managed to tweak some of my consumption by installing a timer on my wellpoint pump (it was engaging early morning when I irrigate the garden) and pushing its consumption to late afternoon. Since then my Eskom consumption has reduced significantly and my battery doesnt drop below 50% anymore. Jay! I think I will continue in this way until I need to replace my inverters and at that point install a Victron product that will allow the CCGX to understand and manage completely what is happening. Many thanks again for your help and patience @wolfandy!

@wolfandy The CCGX already gets all that info from the MPPT and puts it on the the VRM portal, so if ICC can't connect to Blue Nova then I think it wouldn't add anything?

The CCGX connects to the MPPT, the Blue Nova battery and a ET340 three phase meter, that I use to Measure Eskom input and inverter output. The CCGX is a bit confused because it counts Eskom in twice (because Eskom is also part of inverter out, but it adds them up). This is a temporary situation. When I have enough funds or when my Axpert dies on me I will invest in a Victron Multi. Not understanding what the Axpert does and not being able to connect it to the CCGX is frustrating. thanks again for all your replies. While not perfect it is working and that’s what counts! Will take a look at ICC

Wow, thanks for taking the time to pen all that down! Makes sense, you are right about the inverters drawing from the batteries (although wouldn’t they draw from Eskom at a certain point?) ok, so it looks like LBU is the way to go for me. My panels are in the sun pretty much all day so 4kWp is enough to charge the 8kWh battery pack quite quickly. Besides the Victron MPPT I can now also see a lot more on the CCGX and it is starting to make more sense (even without being able to extract any info from the Axperts). Last bit that I am still struggling to understand is why the Inverter goes into bypass mode (solar/battery as well as Eskom are supplying to the load) sporadically when my loads are low, when there is enough solar capacity and the batteries are at more than 52V. Any clue? Promise not to ask any more questions!

Can't find it online, so posting scans of the relevant pages. Never mind the scribblings Synapse 4.0+ settings.pdf

Hi @Wolfandy, sorry for the delay in getting back. Yes, the axpert is showing voltages >52V (up to 55V) when going into bypass. In the meantime I have been doing some experimenting with the Axpert settings. I had more luck with setting [5] on LBU instead of BLU (I did not change anything else). The battery supplies the load when it can and bypass is only coming on sporadically. I still have the following questions for any Axpert guru's out there: - I had thought that with all my settings above and [5] on LBU that Eskom would keep my battery at 50V, but am seeing that it is drawn down all the way to 48V during the night. Why would this be? I am assuming this to be harmful for the battery? - While it is less I still see the bypass kick in during the day when solar is charging the battery and Vbatt > 52V. Why could this be (according to the manual it should not be happening)? Loads are less than 1000W, which is much lower than the capacity of the battery and inverters, so Eskom should not be needed at all? Any input very much appreciated

Sure, although I do the settings on the axperts themselves. 1: SBU 2: APL 3: 230 4: 50 Hz 5: BLU 6: Bye 7: LrE 8:trE 10: OSO 11: 60A 13: 30A 14: USE (I have blue nova) 17: 56.1V 18: 55.9V 19: 48.0V 20: 50.0V 21: 52.0V 22: Ptd 23: LOF 24: bOF 25: AOF 27: FON i have 3.96kWp on the roof, and 2 axperts in parallel. Battery is 8kW. I’m not an expert ... the system is connected to Eskom (grid tied) but does not deliver back into the grid hope you can help

Hi @wolfandy can I ask you a question. I have 2 Axperts in parallel, with a Victron 150/70 MPPT. When I put the axperts in SBU they immediately go to bypass, while the battery is full (55V) and above the [20] setting which is 50V. Would you mind sharing all your settings so that I can try them out? Many thanks in advance

No longer for Sale!

I purchased these items in august 2019, which means that they still fall within the 5 year warranty. I must add, however, that I purchased them in Europe and brought them to SA. I have the original invoice from the supplier in Netherlands

Selling my Victron Color Control GX unit. Comes with wall mount enclosure and a compatible ET340 electricity meter (3 phase, max 65A) + 1.8 m RS485 to USB cable (to connect to a BMS). Reason for selling: after installing I have found out that the unit is not compatible with my Axpert inverters. New (livestainable.co.za) this bundle costs R 12,100 Selling for R 9,500 Located in Cape Town, can ship with Postnet within SA at extra cost.

Hi everyone, I am upgrading my installation and am therefor selling my 2 CB Solar (Axpert) 5KVA hybrid inverters (see specs attached, they are the SYNAPSE 4.0+), with the cables and cards needed for parallel operation. The system has been running since dec 2018 and I had an issue with the MPPT of one of the units, which was replaced by the supplier in June 2020. I am not sure what they are worth. Hoping someone here can give me a fair price. SYNAPSE Series compressed.pdf