I just finished this process and it seems most any 'brand' is built by East Penn Manufacturing. Their 'brand' is Deka. I've had two of those, and now have Braille, and needed a new battery for my wife's new Mastiff. I went with an off brand East Penn (sold by Chrome Battery supply, it's their Pirate brand) and it says it's 310cca. I took it to autozone to test it and it was fresh out of the box at
340cca so I'm happy. Plus, it was only $52 shipped on Amazon. I keep everything on a battery tender, so if I get the same 3-5 years out of this battery I'll be pleased. If I can get 2-3 years out of it I'll still be pleased plus it came with an 18 month warranty which is pretty rare with powersports batteries.
If you wanted to go lithium the only one I'd trust is the one sold by Wild Steed Worx
@KaptinAmerika looks like a great battery but for
$400 I'm not sure there is a lot of added value here: