I have recently replaced my unsuitable and all-but-dead lead-acid truck batteries (don’t ask!) with a 10kWh Lithium Ion battery from Hangzhou Kingor New-energy Technology Co.,Ltd., KG48-200FT64, ie 48V, 200Ah. to go with my Mecer 5KVA 48V and 12 Canadian 330W each panels.
My target is solar consumption and charging during the day, battery draw down during the night and thanks-but-no-thanks to Eskom (my stove and geyser are still wired to Eskom, until I get a 2nd 5KVA!).
After an initial finding of hectic charging/discharging (see below) I ran the battery for a long session with both solar and grid disconnected, performed well. The inverter settings have been changed by the person installing it and the result was charging for an hour, discharging for an hour, this 5 times until the inverter decided to stop the switching and just power the load by grid and keep the battery charged. This clearly does not work for me.
The main settings are: SOL for priority (should be correct, Solar first?) but particularly in 'back to battery' and 'back to grid' I have a question mark: both are now set at 50V, that would cause the hectic switching (solar not in play here, this was during night)? The spec sheet for the battery says ‘Maximum charge voltage 54.7V (Overcharge protection voltage not higher than 56V)’, and 'overdischarge final voltage' equal to or greater than 42V. Also the max charging (solar+grid) is set at 20A, spec sheet says max 100A, recommended 40A. I imagine charging mode should be set at ‘max solar + load’?
I have some other questions as well, full settings and questions are contained in the attached spreadsheet.
I also received a comms cable with the new battery, RJ45 to USB. I have connected this cable between the battery and my Raspi3 running ICC, but nothing happening.
Presumably there is a software solution to manage the battery's BMS via this cable. Anybody any ideas? (it's a simple cable, whereas, when I look at images of the Pylontech cable, there is some sort of 'box' in the middle of it. Not the case here).
Question
Lex de Lange
I have recently replaced my unsuitable and all-but-dead lead-acid truck batteries (don’t ask!) with a 10kWh Lithium Ion battery from Hangzhou Kingor New-energy Technology Co.,Ltd., KG48-200FT64, ie 48V, 200Ah. to go with my Mecer 5KVA 48V and 12 Canadian 330W each panels.
My target is solar consumption and charging during the day, battery draw down during the night and thanks-but-no-thanks to Eskom (my stove and geyser are still wired to Eskom, until I get a 2nd 5KVA!).
After an initial finding of hectic charging/discharging (see below) I ran the battery for a long session with both solar and grid disconnected, performed well. The inverter settings have been changed by the person installing it and the result was charging for an hour, discharging for an hour, this 5 times until the inverter decided to stop the switching and just power the load by grid and keep the battery charged. This clearly does not work for me.
The main settings are: SOL for priority (should be correct, Solar first?) but particularly in 'back to battery' and 'back to grid' I have a question mark: both are now set at 50V, that would cause the hectic switching (solar not in play here, this was during night)? The spec sheet for the battery says ‘Maximum charge voltage 54.7V (Overcharge protection voltage not higher than 56V)’, and 'overdischarge final voltage' equal to or greater than 42V. Also the max charging (solar+grid) is set at 20A, spec sheet says max 100A, recommended 40A. I imagine charging mode should be set at ‘max solar + load’?
I have some other questions as well, full settings and questions are contained in the attached spreadsheet.
I also received a comms cable with the new battery, RJ45 to USB. I have connected this cable between the battery and my Raspi3 running ICC, but nothing happening.
Presumably there is a software solution to manage the battery's BMS via this cable. Anybody any ideas? (it's a simple cable, whereas, when I look at images of the Pylontech cable, there is some sort of 'box' in the middle of it. Not the case here).
Any help greatly appreciated!
Axpert settings.xlsx
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