Has anyone tried the Mighty Max Marine Lithium Battery 100amp hour ?

Never heard of them

They are listed at Walmart now for $419

2 year warranty, not worth it to me.

I always find it interesting when there are 150 different threads asking the same question (which LiFePo is best?) that all eventually get to the same answer but they keep coming back with new threads and new brands only to end up back in the same spot.

The best there are, especially if you need a cranker, is Ionic. Because they are all becoming cheaper each year, they are even offering cheaper package deals now. Still nowhere near actually "cheap" but for a 10 year life, its a bargain. Plus all the other factors.

Disclaimer - this is NOT, I repeat NOT, someone that I have any financial connection to. Bought the batteries nearly 2 years ago and have been the best I've ever seen in a boat.

I can say the same for RELION, been running these almost 4 years with no problem. Truth be known, I do have some skin in this game, my company sells batteries. Anything Continental is related to and then some.

The Chins 100ah are one of the best value lithium’s, no bluetooth in them though. I’ll probably stick with Ionics though, enough people using them with good results.

I've got ionic 50ah for my trolling motor and a chins 100ah for my electronics. So far so good.