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Hello radurus, Take a look at: https://www.amosplanet.org/wp-content/uploads/2022/04/SPF-5000-ES%E7%BB%B4%E4%BF%AE%E6%89%8B%E5%86%8C.pdf page 4.

I have the same 2 inverters in parallel, 1 phase. I also had this problem and posted here in another thread: https://diysolarforum.com/threads/growatt-spf-5000-es-strange-charge-behavior.52469/. I did a lot of testing and nothing helped, that is how they work. To solve the problem, I made...

You are right. Basically they cannot charge from grid until PV energy is not totally gone. Until that happens they power themselves from batteries. Finally I ended up constructing external power supply. With toroidal transformer and current limited voltage regulator, set to 54V. That solved my...

But I think inverters are on bypass on all 3 pictures. The line just on top of the inverter icon on the display says bypass. In the end if it is not some firmware problem, I think I will have to use external power supply (charger) or batteries will die very soon.

I tried today with 7A. It is still the same. It doesn't charge as I think it is supposed to. This two pictures are taken in the morning: And finally in the afternoon, the inverters totally drained the batteries :( After sunset they started charging. And Warning 04 is gone.

Both in program 02 and 11 to 7?

It is written on the batteries - cycle or float charge less than 7.2A.

Hello, I am new to the forum and I recently build a PV system. It has two inverters in parallel (single phase) SPF 5000 ES with firmware 040 05 701; 041 05 701. Batteries 4xSLA 12V / 24Ah (They are small only to support parallel operation). I have the following issue. When there isn't enough...

I also measure similar values with clamp, but I think we are measuring Apparent power [VA], not Real power [W]. May be some filters in SPF 5000 ES input are causing this reactive energy go back and forth. If a Watt meter is used, may be the readings will be as others say, around 60W.

Hello, I also have two inverters in parallel (single phase) SPF 5000 ES with firmware 040 05 701; 041 05 701. Batteries 4xSLA 12V / 24Ah (They are small only to support parallel operation). I also have the same issue. When there isn't enough power from PV modules, the batteries are not charging...