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Hi Tyrel Thanks for the reply! What make battery did you open? Did it have prismatic cells inside?

Okay so here i go, got a ecco inverter 24v with a 24v lifepo4 A grade with build in BMS inside battery. But does not got a connection port for the BMS to inverter on the battery pack. Did setup all the setting as required in the book that came with the battery. everything works fine except the inverter does not want to go into float stage doesn`t matter what i try! It charge the battery to 29.2v but stays there, tested with tester to see if the inverter is still giving amps to the battery to charge. So no Amps when it sits on 29.2v but still the inverter keeps the battery on that volts and not going down to float on 27.5v, i tried lowering the float to 27v still nothing. Bulk charge is set on 28.8 as asked. Can the battery get damaged if it does not go down to float stage on 27.5v as the batteries is kept on 29.2volt? and i don`t know why this is happening. Did have gel batteries on it and the inverter did go into float stage.

Apologies if this has been asked before. I've searched, but can't find the answer. If I'm exporting all my surplus solar power to the grid during the day, is there any point in discharging my battery in the evenings then charging them again in the morning? I guess it helps eskom as I don't draw from them during the peak hours in the evening, but I'm essentially reducing the life span of my batteries right? I have a 8kW deye inverter, 2 x 5.1 kwh VOLTA batteries and 12 panels. Thanks

There is a huge difference between having over 10kWh of battery power and running at 48V than a number of guys running 3kW inverters from 24V like me using perhaps only a 2.4kWh battery. Also after allowing for my 24V I cut out at higher level and also alarm with code 04 at a higher level. This in itself will cause the warning.

The short answer is to discharge your battery at night so that excess PV during the day can be stored (as pointed out by Scorp). To achieve this, set you early morning slot (which ends around the time your PV start picking up) to something like 20% (or whatever low value you think will treat your batteries with respect). But also consider how much backup energy you need in case of loadshedding. To estimate this, monitor your night/early morning usage, then decide whether you need 2 or 4 hour reserve.

Hi there, Currently have 4 x US2000 Pylontechs and thinking of adding 2 more. Also considered moving to 3 x 5.12 Shoto's which are 100ah. Question, the pylons being 50ah and the shoto 100ah, 6 x 50 gives me 300amp and 3 x 100 also 300amps. Does this mean its like for like? Also thinking, if 1 fails, you only lose 2.4kwh, where on the bigger units you lose 1/3 of your capacity.

Hi all Have been running a Kodak OG Plus 5.48 for an year odd with 2 x Kodak FL5.2 batteries Recently added two more of the same batteries. I now see BAT no 4 (only) display error "High Voltage Fault" from time to time [LED no 2 flashes with RED LED on] it will be on for a few minutes (+/- 5min), then off for a longer period (+/- 15min) - I have spent a week trying to call Segen support, could not manage to speak to anyone, ask for VM then cuts off, no action from the VM left Any insight / suggestions pls

Perhaps you might want the 01h-05h to discharge your battery instead of keeping it at 80%. Tick grid charge if you perhaps allow it to drop during the night. Without seeing the complete timer screen it is not easy to say what is the best to save grid.

Hi guys, I have just had solar installed and I would just like to confirm that the config done by the installer is right. The equipment is a Synsunk 5kva inverter and a Freedom Won eTower 5Kva battery. Here is an image of the settings the installer put in, I am not sure if they are the right or not, that is why I am asking. Keep in mind I dont want to do anything that would void the warranty. Are there any other settings I should consider? Secondly, we agreed not use grid charge so it was not set up, what would the charging amp be for grid charge if I do put it on. We don't need grid charge now, but I am pretty sure that on the 30/05 we will. Thank you in advance.

@Scorp007 I am not sure what you would like to see but I can tell how much is being pulled from the grid and how much is coming from the PV/battery at any time. I am not sure if you are expecting more, or something else.

Hi, I have started installing the LuxPower SNA5KW inverters & have found that the Hubble AM-2 battery BMS does not communicate with the SNA. Network cable is 8 pin to 8 pin direct connect and plugged CAN to CAN. SNA Program 3 Lithium type battery selected and battery code 2 used. Any ideas ? Need help, have a bunch of these to fit within the next few weeks ..

My absorption voltage is 28.2v and float is 27.4v as per Revov specs 14.1v and 13.7v. Below nicely balanced pack, hope it stays that way. Again thanks guys @TaliaBand @Scorp007. The 2 batteries in series voltages is spot on and balancer between batteries is off. Battery 1=13.82v and battery 2= 13.84v half an hour after full charge. Cycled the batteries down to 50% and charged up to 100% then took the screen print below.

So i went down the wrong rabbit hole, assuming that the Sunsynk Battery data was accessible via the RS485 Modbus as this would have been the preferred way. After some interaction with Sunsynk, i was informed that they do not support communicating with the battery via the RS485 Modbus port, Looking at Solar Assistant, they use RS232 to communicate with the battery, i then started looking for info on the protocol. I tested many BMS software programmes and finally found one that worked instantly - PBms Tools V2.4 So my Sunsynk 10.65kW battery has a Pace BMS. Now that i know what to look for i found the Protocol document. I also reached out to Sunsynk support, and they confirmed that it is Pace BMS by sending me the same protocol document. Here is a post by Tertiush where he posts about a Python script he made to communicated with the Pace BMS. Here is the link to his Github repository. If there is some clever ESPHome gurus that can implement this on ESPHome, then we can use the same ESP32 for RS485 to the inverter and RS232 to the batteries. I captured some data between the software and my battery. What i found was that he software just repeat these four (4) calls, over and over. I have attached some data but not my Serial No. ~250146C10000FD9A # Software Version ~25014600602850313653323030412D4132313038342D312E3035F57F ~250146C20000FD99 #SerialNumber ###### ~25014642E00201FD30 #PackAnalogData ~25014600D07C0001100D230D220D230D220D240D230D1F0D260D220D210D240D160D230D220D230D22060B960B950B940B940BA20BC70000D21D4C640436B100604E2061E332 ~25014644E00201FD2E #2WarnInfo ~25014600E04E000110000000000000000000000000000000000600000000000000000000802410000000000001EEC8 PACE-BMS-RS232-communication-protocol-20180705.pdf

Any got the above inverter to communicate with the svolt battery? I see luxpower supports quite a few manufacturers but not svolt.

This is a lot of information on your load profile. Only you will be able to investigate which loads can be switched off instead of trying to run all loads as before on PV and batteries. Also you need to decide what level you need the battery power before the sun can charge to be and use settings to achieve it. I can just mention that in the same 4 bedroom house with 7 outside lights on the whole nite and still doing a lot of work in the garage my total consumption went down from 1200 to 300 units a month. PV brought it down to less than 20%. Sorry but not much help to get you through winter with heaters. I hope you already have timers on the geysers to assist with the time of day heating them close to when needed.

100% on the set it and forget it. That’s exactly why I went the “integrated” LuxPower plus Hina route. And it has delivered. Both companies are very active in the software/firmware development side of things. I popped over the the SNA / LXP change log site this morning to confirm. There is a software/firmware update at least once a quarter. I have had two software updates for my Hina PowerGem battery since installed in December. As I went with the LXP model I got the free 10 year warranty extension for both the inverter and battery. This was a nice to have, not essential. They really have put a lot of effort into their management software to the point I have shutdown my Solar assistant. Having integrated inverter and battery management on a single screen just adds to that whole peace of mind thing. Something I did learn in my journey is that in the local inverter/ battery / solar space there generally is no such thing as a single authorised importer and agent for a brand, such as we see in other industries. If, for example, (and I am generalising) you see a battery on site A for R25k and the same battery on site B for R21k, there is a good chance that the cheaper battery is coming from a different route to market. The cheaper option might cost you dearly in the long run.

The Axpert MAX 7200-48-230 has a surge rating of 15000va or 12kw so i would suggest you upgrade the fuse to 250A to accomodate the surge value of the inverter and the battery surge rating of 600A. Also as @Vaalsuggested 50mm² battery cable as short as possible.

@zsde @AlexSolar have been running my two Growatt 5000 ES in parallel for close to three years on US2 mode. I like it as I can change the charging settings both from solar or grid as circumstances allows it. I honestly prefer to do it that way. I have to admit I'm at home all the time so I can do it. Also run my system on either SUB or SBU, again depending on load and weather conditions. I set the voltages slightly lower than the battery OEM recommendation and I get it to 99% SOC. See attached dashboard. Last seven days.

I think you need to consider regenerative braking and super capacitors which are able to take this energy and store it short term, until you stomp on the accelerator and the capacitors get discharged into acceleration together with some battery juice added. As far as I am concerned they have little use in the average home solar setup, but in EVs would be of value to capture braking energy instead of heating up brake disks and wearing off brake pads... but that mean you have to have an EV to start off with and have space to add some limited amount of super/ultra/whatever capacitors and their control electronics. As far as I recall they self discharge within days, although I may be wrong about this, but if this is the case, they certainly would not be able to replace batteries, but certainly could have a role to play in EV tech.

system setup: 8kVa Deye inverter 10 x 500w panels 2 x 5kVa lithium batteries(Huanyu) Good day, Just need some clarity on my current SoC percentage. Installed a hybrid system just over 7 months ago, basically powering all lights and plugs excluding ovens and geysers. Decided a month ago to start switching off grid power at night to make more use of the battery system, using about 30-40% battery capacity and would never fall below 50%. First thing every morning it would start restoring battery capacity through redundant solar power, within a couple of hours but fail to reach 99/100%. I started noticing the SoC decreased although sufficient Solar availability. What is the cause of this behaviour?

Hi All can you run a neey 4amp active balancer in parallel with a pace passive balancer with out blowing up the pace balancer.

I'm not convinced with this. First, capacitors do not have electrodes but plates. Second, carbon is a material with high electric resistance. That creates high losses at high currents. Then - the claim for ultra rapid recharging is an illusion because it would require ultra high power at size of a power station to recharge i.e. a car battery. That simply is not available at service stations. Let alone the limited current capacity of charging cables and plugs.

Good evening all, I have 2 x Deye 8KW inverters connected to 7 x 100Ah BSL Bull batteries and we cannot seem to get the batteries to charge with the generator. The generator is wired to a manual changeover switch so it would be seen as grid if I understand correctly. Basically what happens is that we can turn on the generator and flip the change over switch to Generator and after a few seconds the generator icon appears on the inverter, generator sounds like it’s labouring and then the inverter drops the connection and no longer shows the generator icon, a few seconds later the cycle repeats. It never seems to keep a stable link. The generator is a 7.5KVA Briggs and Stratton generator that is admittedly about 14 years old, maybe older. Our installer doesn’t seem to know why it’s doing that and has mentioned something about a frequency stabilizer as he thinks it’s the frequency of the generator not being stable. Battery Setting has the following settings: Grid Charge and Grid Signal selected Gen Charge and Gen Signal are not, but this could be because the generator is not connected to the Gen Port Gen Force is also not ticked. Gen is not ticked on Work Mode for 9AM to 5PM, so as I understand it generator won’t charge during that time. I’m pretty sure we did set gen charge and it didn’t work either. But happy to try it again if everything else checks out Hope that explains everything.

Hi Does anyone have experience with the SunSynk Rack mount HV battery? (12 x 5.1kWh modules in series) My two main questions are: 1) Can it function like other suppliers' HV batteries in the sense that you can "build your own" battery by combining a custom amount of 51.2V modules in series to reach your desired kWh (Obviously staying within your inverter's Battery voltage range) Atess and BlueNova are some examples. 2) Assuming one wishes to make use of SunSynk's 10yr warranty by pairing a SunSynk 50kW with this HV battery: The SunSynk 50kW is IP65 rated. By installing these battery modules in a custom IP65 server rack, would that void the warranty of the battery? ie are you forced to use their "server rack" 3) Assuming "1)" is true and the modules can be expanded, what is the max amount of modules one can add in the "battery string" from a CAN-Bus communications perspective? FYI I see SunSynk has an 80kWh (665V)version available lately, which correlates to them using 120Ah cells in a "13-pack" configuration indicating that the battery is NOT fixed to 12 modules as with the 61kWh version. Herholdts is struggling to find the technical in-house expertise to answer my question, and SunSynk has not replied to my email from 2 days ago...