I am going to be setting up solar in my new home. I plan to run off solar/batteries and will still be connected to the grid in case no sun and batteries are dead. I also have a whole house generator that can be incorporated into this as well. These batteries are the first thing I have bought so far. I found these batteries from DavidPoz youtube channel where he went over these modules and built a battery. I will link his video below and link the batteries for sale for reference.
My question(s) is I assume I need a BMS of some sort? I had originally planned on using a EG4 18K inverter since it seems like it will seamlessly connect grid power, generator, batteries and panels, which I want, not looking for something super complicated (other than maybe building these battery packs) but if others have suggestions of what else to look into I am all ears. I assume the bms I choose depends on the inverter I am using, is this correct? Does the EG4 18K have a bms built in or do I need to wire and install one for each 16c pack I will be building (5 packs total). Thanks all for any info!
Video:
Batteries I purchased (bought 2 of the 2 module crates):
batteryhookup.com
My question(s) is I assume I need a BMS of some sort? I had originally planned on using a EG4 18K inverter since it seems like it will seamlessly connect grid power, generator, batteries and panels, which I want, not looking for something super complicated (other than maybe building these battery packs) but if others have suggestions of what else to look into I am all ears. I assume the bms I choose depends on the inverter I am using, is this correct? Does the EG4 18K have a bms built in or do I need to wire and install one for each 16c pack I will be building (5 packs total). Thanks all for any info!
Video:
Batteries I purchased (bought 2 of the 2 module crates):

New CATL Modules with 20x 3.2v 280ah Prismatic - 17.92kWh - $110-$120/cell
Down to our last pallet. These modules are new in the crate, never touched. 100% automotive grade, not reject grade B or A-. These are the batteries that were not rejected by automotive quality control. Each crate has 2 modules. The only crate that was open was the one we opened for the photos...
