Hello,
Does anyone in the community know since when the Pylontech US5000-1C models — the ones with a continuous current rating of 100 A and newer firmware — have been shipped? I’m asking because I’ve found conflicting information online, and some retailers are still offering the “older” US5000 models with a continuous current rating of 80 A. The naming also seems to be somewhat confusing, as Pylontech itself refers to the current version on its website as the US5000, without the “-1C”.
Hallo Rolf,
mit dem Firmwareupdate auf Version 2.3 bei den US5000 ging der CCL und DCL Wert von vorher 80A auf 100A hoch. ABER der CCL wird deutlich früher runter geregelt als vorher.
Welche FW Version früher drauf war kann dir aber nicht mehr sagen
Auf der Effekta HP steht auch noch 80A
Wenn du die 100 A voll ausreizen willst, dann denke bitte dran, dass du pro US5000 ein Satz Batteriekabel mit 125A Absicherung zur Stromschiene brauchst.
Hello Dirk,
Thank you very much for your reply and your tips regarding the cables and fuse. I can’t make sense of the current ratings for Pylontech. When you open the product overview on the German website, it shows 100 amps as the standard charge and discharge current (see US5000_Übersicht.pdf).
If you look at the Installation Manual for the US5000 in the download section, it states a continuous current of 80 amps (see US5000_Installation-Manual.pdf). However, the manual is version 1.0 and does not even contain a date. Version 1.0 doesn’t sound like a current edition. A phone call to Pylontech didn’t help either.
US5000_Installation-Manual.pdf (2.3 MB)
US5000_Übersicht.pdf (77.1 KB)
Hello Dirk,
Many thanks for the information. It’s interesting that the maximum CCL/DCL increases as a result of the firmware update, without any changes to the hardware.
It’s true that the website states 100 A, but the Installation Manual available for download from the website (V1.0) states 80 A. I suspect that the manual hasn’t been updated for a long time.
Hello Dirk,
Many thanks for the explanation. I had also read before that the maximum cell voltage of the Pylontech batteries should be limited, for example by changing the settings on the Cerbo GX. Perhaps the new firmware version has resolved the problem.
Hello Rolf,
I have never had any overvoltage alarms with Pylontech systems. I use the settings specified by Victron without making any changes.
I know that there is a lot of experimentation and discussion on this subject.
However, what I always do with new systems is charge the batteries (using the Keep Charged function) until all the battery blocks are balanced.
You can also find tips on what to do in the event of overvoltage alarms in the Pylontech manual.
Pylontech has fallen somewhat out of fashion on this forum; many people are opting for, or recommending, other manufacturers. I lack the practical experience needed to form a real opinion, including how well things work with other manufacturers.
Best of luck
Regards
Dirk
Pylontech is supported pretty well by Victron anyway .. they did tweak the control software at some point, after all, to prevent one issue or another ;O)))
And whether the other manufacturers are any better .. we won’t know that for a few years yet. There are plenty of people having problems with their BMS too.. which is pretty “stupid” .
Thank you very much for your replies. I still haven’t made a final decision about switching my existing system (currently 24 volts, lead-gel) to Pylontech. Based on what you’ve written and what I’ve also read online recently, there seem to be recurring problems with Pylontech batteries. Would Pytes V5 be a better alternative, or should one expect at least minor issues with any manufacturer?
I can’t say anything bad about my six Pylontechs … the US3000Cs, bought in different years, have been running without any problems for up to 600 cycles …
The biggest and probably decisive factor is the 15-cell versus 16-cell technology … which makes the Pylons “almost” impossible to combine with modern 16S batteries. DIY builds are, of course, excluded … in that case, you can simply go with 15S again.
Also… when working with Victron, Pylontech are preferable.
Because they are supported best.
You just need to make sure that the batteries’ charging and discharging currents are compatible with your inverter.
When calculating the price of the batteries, always include the power cables, busbars and fuses as well.
The best people to ask about how good or bad the individual manufacturers are would probably be large retailers or operators.
And if you’re coming from lead-acid, you’ll learn to love lithium’s appetite for power.
Thanks again for your replies. I’m thinking of two US5000s and a MultiPlus-2 48/5000, or alternatively the 48/6k5. That should work well.
What do you have on the PV side?
And bear in mind that with single-phase feed-in, 4.6 kW is the limit for phase imbalance.
Do you have any from 2022?
All the problem cases I’ve had to deal with recently were built in 2022.
What are you basing your claim that they are “supported best” on?
I now clearly prefer the Pytes. Firstly, because they have 16 cells instead of 15, and secondly because of the Pytes’ dynamic CVL, since control via the CCL (Pylontech) has no effect when feeding surplus power into the grid.
Unfortunately, Pytes changed this in one of the latest firmware updates. I noticed it this week in a customer’s system, where I installed version 41 during commissioning.
The CVL remained constant, and only the CCL decreased towards the end.
I contacted Pytes directly on Friday, so we’ll see what they come back with.
Since I don’t know which version between 33 and 41 introduced this change, I wouldn’t currently update beyond version 33.
Unfortunately, I only have these two versions, as the availability of firmware files on Pytes’ website is currently not particularly good. I’ve already raised this with Pytes as well.
That’s a shame. I’ll keep an eye on it with the latest systems and, if necessary, open a separate thread about it.
I’ll have to pay attention to that in future and, if necessary, downgrade the firmware.
