SpanishFlyer

Thanks a lot Tinbum, I fully agree with you, cells 11 and 12 are slightly lower, and if after many days of leaving the battery in standby and after trying to finish the charge with 2-3 amps and a battery charger, it is still not charging or balancing, we might find some cell damage. I will contact Pylontech and send them all the data, to see if they can tell me what is wrong. Problem is that these things are not cheap.... Best regards, Spanish Flyer

I have never updated any of my batteries, so in this case the US5000 must be from 2022. By the way I have "tried" to update the firmware and it won't go through for some "unknown" exception : ( , but my guess is that it is already the latest. Take a look at the screenshot. BR, SpanishFlyer

Thanks Tinbum, I leave them charging whatever it takes and up till recently all seven batteries charged together at the same time... I have also tried to charge the US5000 by it self, from the same inverter and it just won't go over the fourth led. I also tried with an external charger and same thing happens.... One more thing, even though the leds dance between the third and fourth, I believe that 3.4 volts per cell and a total of 51.3 Volts is more like 90% or more charge. BR, SpanishFlyer

Dear friends, I have 6 x US3000C and this 1 x US5000 battery. I charge them every day during PV production and run them at night without any grid. Lately as I reach full charge on all batteries, the US5000 won't go over the 4th led, even though when turned ON, all six leds plus the red one come on. I have Battery View ver. 3.0.37 and have checked this battery condition and it all seems fine (to me)... I'm right now carrying out a thorough test, but nothing seems to be wrong apart from the leds. I'm prepared to carry out an update, but here I find my other doubt; according to the battery it has version V1 .3 and EFFECTA and Pylontech show that to be the latest firmware; only difference being that the batteries date goes down to 22-08-10 and the one I can install are US5000_E3_V1.3_Crc.bin and US5000_V1.3_Crc.bin which are 29/09/2022... I'd hate to brick the battery. I know that the program should pick the correct one from the *.zip file, but what if not? Besides, whatever the outcome is from the update, I still most probably have the led problem, Any advise will be very appreciated. SpanishFlyer

Enjoy the Sunday if you can.... As I just mentioned, I have managed to damage my largest battery, a Pylontech US5000, that cost me 300 € to replace the BMS... : ( Of course I want to avoid this happening again; the rep and Pylontech in China told me I had overcharged the battery. I have 6 x US3000C and the US5000, being the US5000 as per Pylontech's instructions the master battery, with the comm cable connected to the inverter. I need the Deye to communicate with the battery bank and also know how to set the DEYE inverter so the maximum charge voltage is 53.5 V. I also need to know what the max battery charge/discharge amps are for this battery bank. And now for the most difficult questions to answer... I also have a Growatt SPF5000ES that at the moment is working fine, with the the mentioned battery bank, being the only drawback that the discharge rate is so poor that it never delivers more than 700 watts to my home grid; if I connect the kettle, microwave or any other medium to high consumption device, the extra needed power is taken from the grid (Even when I have setting 001 to SOL and 014 to OSO) 1).- I wonder if I can set the Growatt to deliver more, having such a generous battery bank... 2).- Connecting the DEYE to the same battery bank would surely help when delivering battery power to my home (specially at night), but How to connect both dissimilar inverters to the same battery group and have both connected to the BMS via an Ethernet Gygabit Switch??? Maybe, if I can set the DEYE Sun 5K to handle the battery alone, with BMS communication, it would for a change be able to deliver more power from the battery back, but for that I need to know all the settings. Best regards

Sabza, From what you say, it sounds as if the string from your panels is for some reason producing a higher voltage than what your inverter can handle. I guess your 5 x 540 W panels are all set in series, but even then, the theoretical voltage would be about 250 V DC 2.700 W 10.6 A and the Growatt SPF5000ES can take as much as 430V and 18.3 A.... There is however a fact that PV panels can produce more power than their specs during these days in Spring when the sky is clear but temperatures are still low, but there is no way they can produce such a difference. Are your panels in series?

Thank you all for your suggestions, Beat, Antonio de Sa, Eurard and Zsde I haven't visited this forum for ages, so I'm sorry I couldn't reply any earlier.... Tomorrow I will try all your suggestions one by one; I have actually tried the SBU in 001 one night, but couldn't see any improvement; I have a graph chart of that whole 24 hour period and there you can appreciate the consumption during the night, being between 300 and 600W "stolen" from the grid that multiplied by the 15 hours I'm running on batteries (theoretically), I'm also using about 400 x 15 = 6 kW of grid power. The orange line represents consumption and the green line solar; I have the system set to zero dumping to the grid, so most of the time, the orange line covers the green line. The program and hardware is by Smappee.. Thanks again and will keep you posted

Dear friends, I have the Growatt SPF5000ES and 7 batteries (Pylontech 6 x US3000C and 1 x US5000) amongst other elements, inccluding 56 solar panels, but the issue I want to solve is related to the Growatt inverter and the 7 Pylontech batteries connected to it. From 6 PM in the evening to 11 AM next day I have it configured in such a way that only the batteries take all the load; the problem I have found is that even when the load is not much ( between 600 and 700W), the batteries will feed only about 350W and the rest will come from the grid. I have more than enough battery power to deal with the full load, but for some reason they only deliver about 50% and the fact is that when at eleven am the solar panels come in together with some grid power (depending on the weather), my batteries have only dropped th 60-70% SOC (state of charge).... My guess is that some setting on the SPF5000ES needs to be corrected so the batteries deliver enough to handle the full load during that period. Problem is that reading through the manual I see no setting related to the battery máximum amps that can be delivered in a constant basis, without the aid of the external grid.... Any ideas?? Best regards

Good evening, I have been installing my new Growatt MIN 5000TL-XH all day and I'm close to having it running. I however have one problem I cannot find anywhere and don't like to wire it wrongly and make a mess of the whole system. The supplier sent me some info but it was of no use to me (I bet they are not too sure about it); no matter how hard I try, I cannot find any information about how to wire the meter, so I can program the inverter not to allow any power produced to be dumped to the grid. Funnily enough there is plenty of information on how to wire and connect an Eastron SDM230 Modbus, but the the one I received from the supplier is a CHINT DDSU 666 and I know as a fact that the wiring is totally different; for a start the signaling terminals are a bunch more and have different numbering (I do however know the signalling terminals I must use) it's the main wiring 80A, that I´m lost, main terminals 1, 2, 3 and 4.... Any ideas, links or drawings that could help me out? Best Regards, Spanish Flyer

Thanks a lot ZSDE, I see you have done your homework and I thak you for that. I fully agree with you, leaving the same model number, when the new one even has a different comms card and firmware. I am now thinking of trying another Growatt instead, the Hybrid 5kW SPH5000... just hope they haven't messed it up the same way, because I have to use my less than a year old Pylontech US 3000C batteries. Thanks again and keep in touch. Best regards, Spanish Flyer

Hi from Spain. I came across this long discussion after I received very bad news from my Solar material supplier. I have one Growatt SPF 5000 ES and three Pylontech US 3000 C. All is working fine and had no complaints till yesterday. I have (or had) the intention to add some more panels, and a new SPF5000 to work in parallel, topping it up with another Pylontech US 3000 C.... What he told me was that the new Growatt comes with a different software and other arrangements, in such a way that basically Growatt no longer supports the Pylontech battery and that if I purchased the items I wanted, IT WOULDN'T WORK. For that reason I don't dare update my software to the latest version, since I am quite sure I will end up with the same problems many of you have. I know it sounds crazy, but I won't touch a thing till I get confirmation on how to proceed. I am very happy with the setup I have, just needed that bit more to achieve an almost 90% solar production most of the year. Installing an extra Pylontech US 3000 C is straight forward, but I needed those extra panels, but without the extra MPPT there is no way I can do it. Right now I have 52 panels of all shapes and sizes (between 270 and 450W panels), two Kostal MP Plus Piko 5.2 so as the Growatt SPF 5000 ES and am connected to the local electricity board network; this news has left me not knowing how to proceed. But I surely hate having to depend on a Chinese company to help out. Best regards, Spanish Flyer