Probably the heaviest copper busbar any of us have seen...

Came across this video today. The amount of copper bus bar usage he is using is sick! He could easily pull 100's of amps and not worry about over heating. Not to mention the cabling! 0-gauge wire for all runs!

Since he is mixing Lithium with AGM, I did post a comment about the need to charge the Lithiums separate as they charge differently than the AGM's. Hopefully he'll listen to reason and safety. I'd hate for that hard work to go up in flames.

Nice install!
Note that LiFe batts can easier be hooked up to AGM than common LiIon batts Due to the fact that the LiFe bats can be pushed to 4.2V per cell = during Bulking the AGM this can be done.

Nevertheless some kind of BMS is good to have.

Car "nerds" tend to over do it... (I was one back in the days )