AndrewD

Hi all Have done my install of the additional battery but something weird is happening with the charging/discharging of the battery. It only show's have the wattage it should be showing. The total PV charger does not add up to the total loads plus the charging. (677+577=1254 missing 450 watt). Previously it did. Think the second battery is causing this. Did to a redetect on the battery but did not do anything. Any ideas what settings should be changed?

Thanks everyone for your inputs. I had electronics in high school but have not used that in a very long time. The batteries will be connected in parallel thus increasing your amp-hour capacity. The amount of current you can draw is still limited by inverter and thus cannot draw more than what the system is currently designed at. The current fuse size is 125 amp and the cable thickness is 25mm thus I don't believe that the current system is under designed. I am going to connect the battery and see how the system behaves. Will provide feedback. Thanks again for all the input

Good day all I want to add an additional battery to my current solar installation. I currently have the following installed Victron Multiplus II 48/5000 Victron SmartSolar MPPT 250/100 Victron Cerbo GX Around 5000 watt solar Dyness BX51100 5.12kwh battery I asked the company that did the install for a quote on an additional battery and they charge and additional R7500 for labour, Lynx Power In, some fuse link, pull fuse disconnector and some cables. My question is, is this all necessary? I though you can just switch off the system, connect the two batteries, comms cable between batteries, setup slave an master and switch everything back on? Thanks