Never mind - I just looked them up.

You can buy a lot of batteries every couple of years for that kind of
money.

Sheesh.

Every time you buy a new round of disposables they cost more than the last.

Plus there's the time/labor/inconvenience for installation.

Plus there is increased risk of battery failure prior to replacement when a
battery is of lesser quality.

It's always a good idea to buy the best battery you can afford, unless you're
planning to sell the boat right away. Even then, you don't want to go too
cheapie-cheapie. There have been plenty of boat sales shot down in flames
because the *&*#! thing wouldn't start for a prospective buyer.