Growatt SC48120, SC4880, SC4860, 12000T to 4000T Calibration

The Growatt Charge Controllers SC48120, SC4880 and SC4860 charge controller have a funky "USB Port" but RS232 Cable, the Inverters 12000T through 4000T use the exact same procedure and software, but with their supplied USB Cables

[@watts247]

Sorry for the aspect ratio, I noticed this after I made the video, it still has all the details necessary, just turn your phone sideways

[@mewhewitt9086]

I am trying to connect my sc48120 to solar-assistant. is connecting through the wifi/gprs usb port through a usb to rs232 to usb cable the way to do it? This video is the only one I have found with any information at all to making that sort of connection. Any other hints would be greatly appreciated. thank you.

[@ryklebaron]

Hi there an option to set a higher power option? Like overwriting the default 5000Watts an hour on my invertor?

[@basspig]

I've used this utility to calibrate the battery voltage on my two SC4880 controllers, but the utility can't see my SC48120 charge controller. I normally see COM4 listed but when connected to the new controller, the utility cannot find a COM port. Is this utility only for the SC4880?

[@richardnassab1869]

Hi day can you help me out here please
I have a growatt charge controller SC4880. When I connect my lithium battery which is 48v when my battery are fully charged and charging has stopped the charge controller showing a error light with a error code 03, which mean battery over voltage but my battery voltage is 53.4v. Why am I

[@richardnassab1869]

It only happen with the lithium battery when the BMS turn off charging.

[@allanstrand638]

@@richardnassab1869 Have conncted an SolarInverter in paralell to the growatt charge controller SC4880 ?

[@davidtheron6573]

Hi can you send link website please?