When my System was installed I purchased one Battle Born Game changer, they wanted me to spend the night connected to a 50a shore power. In my RV. They had the shunt set to 270AH for the battery capacity. This was correct until I had them install a second Game changer. I changed the AH in the Smart Shunt myself to 540AH before the second BBGC was installed when the Battery was at 100% it said I had 10 days runtime. When the second battery was installed it still said 10 days? Even after I changed the setting in the shunt. I won't have the Dongle to get into the Multi plus II until later this week so I can't see if anything is not set right in the Inverter? Is the 10 day a max limit? Or could another setting be off? The installer did connect a laptop to the system while they were adding the second battery but didn't tell me what he did? I'm trying to get it setup as I want for my Boondocking needs . It's almost like they left everything default from the distributor. I found they but from Battle Born directly for batteries and Victron hardware. Battle Born says they pre program the inverters before shipping. Except for small adjustments like AH capacity etc. Thanks for the help. I would think my run Time should have doubled. After putting a second 270ah Lifepo batteries. The service from this place was not what I expected especially after dropping over $14000.00 on the system.