Mosasaur 105 AH off Amazon

[Cobra,1]

They state on website that they use grade A cells.
Look thru their fag’s on their web site. May or may not answer your questions.

I researched for over a year before deciding on that brand compared to others
Customer service is what swayed me along with reviews.

Face it’s not a small investment when choosing a brand when upgrading over familiar lead acid batteries. Do your homework to be sure you compareapples to apples.
I will never go back to la batteries.👍