Conext SW4024 Battery Bank question

The first thing to understand is the SW is primarily designed for use with lead acid batteries, it is however capable of being set up using custom settings to utilize lithium batteries. With a DIY bank one needs to understand the charge/discharge curve of the individual cells, there is a distinct rise and fall at the extremes, known as the knees, there is very little capacity above or below the voltages. For reasons of safety, along with preventing cell damage, it's commonly recommend not to exceed these values, particularly if the ballance of the cells is unknown, more so if there is no BMS.

The above is intended merely as a caution, although I am currently using lithium, cells they are LiFePo4 so values are irrelevant to your modules although similar in principle. This link may be of some assistance  http://offgrid100.com/tesla-battery/ 

As for the settings of the Conext SW the capacity setting mentioned is to allow the charger to calculate the 2% end amps transition to float for lead acid batteries, with lithium the value is not relevant as the charging would be terminated by voltage alone by having bulk/absorption set at the same value and absorption set to a short time duration, I use 6 minutes. This is with solar but would be the same 3 stage if using grid, but obviously if a generator is being used you would not float charge but shut down the generator.

The SCP battery indication is not related to actual capacity but based on the battery voltage, it may appear to be 50% then as soon as the absorption timeout is reached it suddenly jumps to a solid bar appearing to be 100% and most likely based on LA as 22V would be completely discharged. As pointed out by Dave a battery monitor would be a better solution if this information is important to have, my BMS has a shunt based capacity readout but it tends to drift I've time, perhaps the Schneider battery monitor is better?

What are your current settings and is grid available or generator only?