LiFePo4 -- Parallel or Not?

[JuanPoco]

"When it comes to FET based BMS batteries we typically advise smaller individual batteries, in parallel, to share the load across the FET based BMS’s. For example three 100Ah 1C rated LFP drop-ins can theoretically handle a 300A discharge, if the parallel wiring is perfect and all batteries share the load equally. A 300Ah 8D format drop-in, like the one addressed below, can really only handle a 50A (0.17C) charge and a 100A (0.33C) discharge. When in doubt with FET based BMS systems smaller batteries in parallel are usually a better solution than one large battery with a low current rated BMS."

That's from marinehowto
https://marinehowto.com/lifepo4-batteries-on-boats/

It is common knowledge that if you parralel batteries you increase the capacity, not sure why there is confusion with lifepo4 and BMS?

[CatNewBee]

... That is because "drop-in batteries" are not batteries, but complete systems with electronics, and the electronics are the problem of the solution - not vice versa.