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    BMS protocol and read-out

    Hi, I also have two of these 100 Ah batteries, and I have similar problems as the ones described here. One of the main problems I have is that the batteries don't detect charging under 1 Amp - and cell balance (when it happens) only works when the BMS detects that there is a charge. This way, if...
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    Growatt SPH leaking charge current to batteries

    Hi, I have a Growatt SPH 3000 hybrid installed for a bit over one year, and I have added, a couple months ago, 2 server rack batteries (2x100 Ah 48v) that I bought from Aliexpress. The BMS communicates with my inverter (if I select lead acid battery I have some control over voltage; if I select...
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    Top balancing server rack batteries

    Thank you for your input. However, SPH does not have those settings - I believe those are only for SPF inverters. I can only set lead acid or lithium, and it I choose the later, I have no control over the charging (well, I can set different priorities and define a minimum soc, but no more than...
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    Top balancing server rack batteries

    Thank you for your input. I haven´t had the time to top balance the cells yet, but I believe there is a easy access to the busbars - some screws hold the top lid for the rack battery, and from there, I probably can see the individual cells and their busbars. For what I've read, there is the...
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    Top balancing server rack batteries

    No, I have no such options - from what I'm reading, in Growatt SPF series there are other options, as it's an off-grid inverter; my inverter, since is hybrid, only have the option to connect lithium battery if there is a BMS capable of communicate with the inverter, and in this case, the...
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    Top balancing server rack batteries

    Unfortunately no. If the batteries are lead acid, I can input those values. As soon as I select lifepo4, I have no control in charge voltage - I can only define the minimum soc percentage...
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    Top balancing server rack batteries

    Hello, I've bought 2 x 100 Ah 48V server rack batteries from an Aliexpress seller, to pair with my Growatt SPH Hybrid Inverter. The batteries BMS communicates with my inverter. They are connected in parallel (not yet through a positive and negative bus bar, but that is going to be done in the...
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    Some questions about LiFePo4 battery install

    Of course, my bad, I'll edit the original post to correct it. Thanks
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    Some questions about LiFePo4 battery install

    Hi to all! I already have a Growatt SPH3000 installed with 5x455W Q.Cells, for about one year - this was installed by a local company. The inverter is grid-tied. Now I'm going to install 2x100Ah LiFePo4 batteries, that I bought from Aliexpress - it's BMS communicates with my inverter (or so...
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    Export Limit with Growatt inverters?

    This is the CT sensor that comes with SPH inverter.
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    Export Limit with Growatt inverters?

    There is supposedly a wireless solution but I believe that there is currently some kind of problem with SPH firmware that doesn't allow it - I've read it from the installer of my inverter that it used to work, but recently has stopped. Growatt is supposedly trying to solve that problem, but I...
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    Export Limit with Growatt inverters?

    My unit is the SPH3000, not the 6000. In July, when the system was installed, the peak production was about 2000w - with 2275w panels I produced a bit over 15kWh daily. The unit is fairly cool when working, as it is in a well vented area with no direct sunlight. The communication with the Easton...
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    Export Limit with Growatt inverters?

    Yes, you'd have to buy a dongle that connects to the inverter and is capable to connect to your local wifi network, so you can monitor the production, and this way, through Growatt server, you can select 0 export.
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    Export Limit with Growatt inverters?

    First of all, I'm from Europe - Portugal, to be precise. I bought from a local installer, with 5 x 455w Q.Cells G9.3 panels. No battery yet, but planning to add it. We have 230v grid back here, and my system is injecting the surplus in the grid, as there are some advantages - a 15 minute based...
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    Export Limit with Growatt inverters?

    Hi, I have the SPH3000 hybrid inverter installed, with an Eastron Sdm230 (the inverter came with a simple clamp meter, but the Eastron was installed as it's far more reliable). I can enable zero export through Growatt site easily - never done it, as I don't really need to (and have some...
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