Hi. I had  off 200ah 12v gel batteries on my solar  system. It worked fine for nearly 4 years. Then it packed up (the batteries). So I bought a Greenrich U-P5000. My inverter is a SOL-I-AX-5P. I also have 3 off 300w solar panels connected to the inverter. And recently I bought a Raspberry Pi with the correct software and the correct cable from ICC. Connected everything upas per instructions. (Oh yes and i had a Solar expert? here to set up my inverter) Now I have the problem Nether my Util or my Solar panels charges the batery full. The inverter keeps on showing the batery is charging. But it only lights up 5 green lights of the six.  And the (settings 4) page doesn't show the batteries is charging. I need the correct setting for the raspberry pi. Im adding some screen shots of the settings as they are now.

It looks like your battery is 16S LFP, so change your bulk charging voltage from 54V to 56V. You might even go higher, up to 57.6V, but overshoots could cause disconnection. 

Thanks Coulomb. Changed bulk charging voltage to 56V. My Solar Panls details on the backis as follow. 

Maximum Power (Pmax) = 300W

Maximum power Voltage (Vmp) = 36V

Maximum Power Voltage (Imp) =8.33A

Open Circuit Voltage (Voc) = 21.6V

Short Circuit Current (Isc) = 9.55A

Maximum system voltage = 1000VDC

if that can help for settting up my inverter.

6 hours ago, Christoffel said:

Maximum power Voltage (Vmp) = 36V

...

Open Circuit Voltage (Voc) = 21.6V

Voc has to be higher than Vmp; did you mean 41.6 V?

Not that it matters much really; 41.6 is less than my rule-of-thumb of 45.0 V max, so 3S is OK (2S might work better though, but likely not convenient with your setup).

Edited December 11, 20223 yr by Coulomb

On 2022/12/11 at 3:28 PM, Coulomb said:

Voc has to be higher than Vmp; did you mean 41.6 V?

Not that it matters much really; 41.6 is less than my rule-of-thumb of 45.0 V max, so 3S is OK (2S might work better though, but likely not convenient with your setup).

No I double checked. Took a phooto of the back of my pannel. Thats what's on the sticker.

Edited December 12, 20223 yr by Christoffel
Solar panel detail

My battery fully charges now! All 6 green lights are lit (not 1 is flashing). But on the inverter it shows the battery is still charging. And the run light on the inverter flashes. 

On 2022/12/12 at 10:25 PM, Christoffel said:

No I double checked. Took a photo of the back of my panel. That's what's on the sticker.

I'm afraid that doesn't give me much confidence in the quality of the panels. But hopefully, it's just a simple typographical error.

Okay now im going to replace my 300w pannels. With 650w. What should I look for on the description at the back of the solar pannels?

12 minutes ago, Christoffel said:

Okay now im going to replace my 300w pannels. With 650w. What should I look for on the description at the back of the solar pannels?

Are those Bifacial or single sided? If they are Bifacial, be aware that the 650w is actually only like 500W in the front, meaning, if you mount this on a roof, you wont get 650W.

No they are not bi-facial. I got a reply on my 300w solar panels now on my roof. VOC has to be higher than VMP.