I posted this in a thread on another forum the other day, and am posting it here as it seems on point:
My take on LifePo4 drop in replacement batteries is that they can be grouped into 4 rough categories,
1, Rebranded generic made in China batteries like the Chins batteries, which seem to be relabeled and sold under a number of brand names.
2, Customized built to spec made in China batteries, like the ReBel batteries I recently bought, where the seller specifies all sorts of details about the construction of the battery pack, size and gauge of wire used inside, brand and model of BMS, type of cells, and even how they are secured internally, and the thread size of the terminal screws.
3, Custom designed, or exclusively distributed made in China batteries, the Renogy smart batteries with the RS485 port on top are probably a good example of these.
4, Premium assembled in North America (or Europe) batteries such as Battle Born. (using Chinese built components)
What each person has to decide is where do they choose to strike the balance between cost, build quality, warranty and support. Do you mind buying from a fly by night, no name brand with no contact information in the US for warranty claims, if they even have a warranty. How about the small shop, one man show selling customized batteries, do you prefer a bigger company like Renogy who has been active in the US selling solar panels and other solar accessories for about a decade, or maybe you prefer a dedicated LiFePo4 premium brand with premium level of support and very long warranty like Battleborn, that is somewhere between a one man shop, and a big company.
The Alberta Lithium batteries likely falls into this second camp, where they sell batteries that have been customized to their specs, this is compared to those importers that simply slap their label on the generic imported batteries like the Chins battery.
Here is a link to the batteries which I bought at a discounted price due to being somewhat irregular, and not meeting spec, for me the non-spec issues were not show stoppers. I am posting this as it talks about the sort of customization they have done vs simple relabelling of generic import batteries.
p.s. note I paid $668 for the 200Ah version about a month ago, not the $800+ mentioned in the video