"Renewable Energy" batteries vs. big box deep cycle
Is there really that big a difference between batteries marketed as "Renewable Energy" versus a deep cycle battery that can be obtained at a store such as Sears or Walmart for a lot less money? Or is it just marketing hype designed to sell at a higher price? Obviously I am talking only about flooded batteries, not sealed or AGM. The extra maintenance is not an issue. It's for a portable solar power system.