WernerM

Hi, Batteries were sold last year.

Hi, I sold my batteries a few weeks ago. Regards

Hi, I have a swollen Pylontech US2000B. Let me know if anyone is interested.

Hi Everyone, I have a swollen Pylontech US2000B. Its no longer in use, was replaced with a Dyness battery. Anyone know what I should do with it. Dispose, sell, refurbish?

Hi Coulomb, Is it possible that your two US2000s are not connected correctly? The inverter's positive lead should connect to one, and the negative lead to the other inverter. Otherwise, one of the US2000s does more of the work, discharging more fully. I attached a photo of how they are connected. Are they of different ages? In that case, the internal resistance of one may be higher than the other. Same age, both been running for about 2 years. About 2 months ago I found that my 'bulk charge voltage' was set to 56v for some reason, so I brought that down to 53.1v and float charge volts to 52.5v. I note that one reads as 15 Ah and the other as 20 Ah. These figures seem very low, unless those figures represent present capacity, not capacity when fully charged. Yes, these figures are for present capacity based on the SOC as seen in the image as well. Both batteries charge to 100% daily without any issues. I also swopped the two batteries around making the secondary the master and vise versa, but had the same results. Their SoC differ by about 10% when they are at 80% DoD.

Hi Everyone, Current setup 1x Kodak OG-Plus 5.48 with 2x US2000 Pylontech batteries. My questions is regarding the battery equalization setting available within the inverter settings. Reason I'm looking into this is because I recently noticed that my batteries don't run down to the same SOC before switching back to grid supply. e.g. battery 1 would be @ 18%SOC while battery 2 would be @28%SOC. My inverter will then switch back to Grid due to battery 1 being below the critical threshold however there is still some charge left in battery 2 which could be used. Even when charging you can see the 10% difference in SOC (attached) Any advice would be appreciated.

Thanks Coulomb, I'm just trying to source the right cable then I will proceed with the firmware upgrade. Is it necessary to upgrade the display as well?

Morning Sam, Thanks for the reply. I attached a screenshot with more details from that day (selected in blue), here we can see the 'Load Max' was 3.95kw and the 'Max PV' was 3.62kw. This seems to still be well within the rated specs of the inverter which are 4kw max PV input and 5kw max AC output. In my understanding should the load spike to say 4.5kw, the PV's should be able to supply 4kw max and the remaining 500w should be supplied from the grid. Is there perhaps a setting on the inverter that I can check which should initiate the reset you mentioned?

In the image below you can see what the load did while the PV input bombed out. My 2kw geyser was running at the time so you can see that the PV was sufficient for the entire load, then the PV (green) dropped, battery (blue) took over until it ran low, then it switched to grid (red) and that continued for the rest of the day.

Wish I got the one without the PLUS then, It uses the PV's perfectly most of the time, its just randomly every now and then when they are kicked out. The inverter would be charging the batteries one day and running at 3400+ watts from the panels, then all of a sudden it just drops to 0 watts from the panels and stays like that until the inverter is restarted. Then after that it does not happen for a few days. This does not happen every day so thats why I was wondering if its firmware, or perhaps a spike of some sorts with the volts or amps that triggers a safety limit on the inverter. Attached you can see a graph from Saturday when this happened.

Thanks for the reply guys, Yes, the max volts for this inverter is problematically low, so thats why I have to use a weird sting layout to keep the voltage at a safe level. I attached a photo of the inverter specs, hopefully its readable. Let me try and get hold of Coulomb and see if he can advise me on a way forward.

Morning Everyone, I need some advice regarding my Kodak inverter. I added 2 additional 550w solar panels last week bringing my total to 4240w (4x 2 panels per string, PV voltage hovers around 90v) The inverter has now on 2 occasions dropped all PV input during the day, I then either have to manually restart the inverter or wait until the next day for everything to resume as normal. Current firmware is 71.97 Could this problem be resolved by upgrading to a newer firmware?

Are these batteries compatible with an Axpert inverter?

Hi Everyone, Has anyone spent some time Device Control tab in MultiSIBControl to get those notifications working through pushsafer? My goal is to e.g. turn on my geyser as soon as my batteries are @ 100%. Still looking for the best way to accomplish this. Any help would be appreciated.

I'm currently using the MultiSIBControl software for my solar monitoring, works well and helps me tremendously. Are you using something similar?

Hi Guys, I have a question about the cycle count on batteries and the remaining Ah's. I have 2x 2.4kw pylontech batteries (100Ah in total between the two) which have done 200 cycles each, so still quite new. However, I noticed my battery monitoring software tells me that the full capacity of my system is 98Ah of 98%. Its only a 2% loss from full capacity but if my calculations are correct then I will be at 90% capacity after only 1000 cycles. These batteries are rated for around 6000 cycles. So I would just like to know if this rate of regradation is normal?

Looks like it is possible to run Windows 10/11 on a Pi but its a painful excersie. I think you will be better off going with the Solar Assistant package. Its just a tough sell for me at almost 3k.

You can get a raspberry pi and load the allpication on that, its small and you can hide it quite esily. Solar assistant also needs a raspberry pi, big diffirence is that you need to pay an upfront cost for solar assistant.

I have a PC that is always on at home and I use this to manage all my solar monitoring, downloads and media server. I had to move this PC to the garage in order to get it directly connected to the inverter and batteries. had it running on wifi for a few months just for remote access but this did not work for the media streaming so I pulled through a LAN cable a few weeks ago.

I found this tool on the powerforum and its a life saver for the older inverters that dont yet monitor the actual battery SOC. http://www.multisibcontrol.net/Default.aspx Let me know if you need any help with the config should you want to start using the app.

Hi, Just as a side note, I have diffirent size panels connecting to one inverter so I can give you an idea of what my generation is. Setup: 1x Kodak OG 5.48 inverter 3x 370w strings of 2 panels in each string 1x 450w string of 2 panels each On avergate I generate around 15Kwh per day depending on my load with peak generation averaging around 2.9KW and peaking over 3KW quite often on good days. I can share more stats if interested? Not sure if this corrolates with the calculations done above, just thought it might help.

Hi, Thanks for the reply. I found a few default settings on another forum that I will try and give some feedback once I've let it run a few days. Another problem I ran into last night was to get my two inverters to run in parallel. When switching on the second inverter I get a warning U01 as well as warning 32. Please see link below: https://youtu.be/BwN6xkWAbZI Thanks

Hi, Could you possibly help met set the basic settings correct on my Kodak inverters to get the maximum out out my system without hurting the batteries? Setup: 2x Kodak 5kw inverters 2x Pylontech 2.4kw lithium batteries 6x 370w solar panels (2 stings of three) I would like to use the least amount of utility power possible as well as prevent Eskom from charging the batteries. Any help would be appreciated.

Hi, I have the exact same setup and similar questions. I got my system up and running yesterday afternoon and itsbeen running great, however this morning when I checked the inverter status I saw that my battery was on 30% and that the utility had started charging the battery. Is it possible to have the inverter supply power from the battery until its flat, then switch over to utility and once the solar panels are ready use that to charge the batterys. You mentioned remote monitoring system. Where can I get more information about this?