I have two Backwoods 100ah LiFePO4 batteries from Backwoods Lithium, use them for various tasks including powering my ice shack, 2nd season just past for one of them, the other is a 6 months old. I have pretty good knowledge in LFP products, been using LFP batteries since before anyone really knew they existed, 12 years or so now, probably 3 or 4 different brands.. Backwoods at about 1/2 the cost of Dakota Lithium's, with pretty well the same specs and even the same cases and handles but just a different color as the Dakota
product, you can almost buy two for the price of one Dakota............I am way ahead of the game and don't care about the so called 11 year warranty, you certainly pay for it. Read the fine print on the Dakota warranty!!!!!. When I bought my first Backwoods battery just over two years ago.........without saying exactly so, they pretty well said it's a Dakota in a Backwoods case. As far as chargers go, I use Noco Genius 10's, I also have Renogy battery capacity meters on my power centers. Nothing but great things to say about Backwoods, the company and the product.
I am also very fond of Amped Outdoors LFP product, I have several of their batteries too and I also supply them for customers who want a battery along with any of the power boxes I build and sell, I estimate I've probably supplied 60+ Amped batteries in the last year, in 12, 18 and 30ah, not one bad report or negative comment about them, great company and product.