OneillZA

Hi Guys, I recently added more solar panels to my roof and decided to also upgrade my batteries. I had two Pylontech 3000C batteries. I opted to go for new Sunnew 5.12kW batteries. I bought 6 of them in total. The problem that I have is my inverter only picks up the first battery and not the rest in the pack. I did do the dip switches according to the manual and then also according to a guy on youtube: Not sure what I am doing wrong. According to the manual a normal lan cable should do the trick as the inverter and the batteries uses the same cables pin 4-5. Any idea on what I can do to get the inverter to read the entire pack and not just the first battery? This what how my system looked before and after:

Hello, I have a unit like this for you in pretoria if you are still interested

Price Drop 7K

Hi, took it off the wall this weekend so yes its still available

Thanx man. ye guys so price is then 8k?

The new inverter has all the bells and whistles so dont need it deye sun 8k

Ok thank you guys will adjust the price. So asking should be 8K with the pi and icc?

the pi cost me 3500 or something with the icc software. I dont have to move it quick tho so willing to wait and drop if a reasonable offer comes in.

RCT AXPERT 5K MK2 5000VA/5000W INVERTER 48V DC WITH 4500W 450VDC MPPT CHARGER. The unit is about 8 months old Also comes with ICC and pi to control the unit. Looking at 12K for the setup

Hi Guys So my solar panels are still only getting max 3840 a day! I assume its because of the 18 amps max input. Is there any other RCT inverter that I can go with that will allow a higher amp?

@Coulomb @wolfandy Hi Guys, I want to add another 3.5 poly 300 to my system that currently has the poly 200. How should I go about wiring this? pol 300 as main or keep 200?

Maxed out at 4670W when I did a stress test. Thank you @Coulomb @wolfandy Awesome setup as above.

I have change the cabling to have 2 packs of 7 panels.

Would the RCT-INFINISOLAR V2 5K-48V Inverter not be a better fit then?

Here is a pic for my panel. At the moment we have 3 packs connected with a 3-1 way male and female connector. How would you then change this connection? @Coulomb each pack has 5 panels connected to each other and then the ends goes to the 3-1 connector Thank you for the help so far

Ok hectic. Would you guys then recommend I remove 1 panel per pack of 5? @Coulomb. The other thing is I only get max 3400W of solar power in the day. It might be because its winter or I dont know. Have stress tested this with a kettle and the max the pv goes to is 3400

Once again thank you for all the help so far @wolfandy. Please note I have received my Pi and its plugged and ready to go.

Here is the pic of my inverter

Great info thank you @wolfandy. I have changed the settings to your recommendations. As for the ICC this is the one I got: https://iccsoftware.co.za/product/icc-pi-kit-pi-4-4gb-licensed-icc-pylontech-cable/ Please let me know If I still need to add something. So we saying I will need at least one more poly?

Hi Guys, Let me start by saying this looks like an awesome forum. Tons of information here. Also the community looks like a bunch of epic people. Now let me also start by saying what system I have installed and how its currently running: 330W X15 solar panels. RCT - Inverter 5kva MK2 Polytech 2000 battery BMS box - Has not been setup. I want to system to run as follows: During the day it must run on solar and at night I want it to run on eskom. I only want to battery to be used/run off when we have load shedding. Currently its using the battery and solar during the day and thats fine with me as long as the battery does not go below 60%. I have yet to setup the BMS box as I have no clue on how to do this. Would any of you mind the recommend settings for my inverter giving the above scenario. Currently my house uses about 2000w constantly during the day and at night time 1300w. There is the odd jump to 4000w when we turn on the kettle or vacuum machine. I did order a pi from icc with the software. Anyway any help would be awesome.,