"Battery U"
I went to school at Powersonic during my career as a service manager for a lighting company. Our crews installed and replaced SLA's in all but one of the listed applications. I may still have the course manual somewhere.
Thanks for posting some great information. Most people over power and over think batteries and end up carrying way more weight than necessary. Of course, if you can drive your truck to your shack or are pulling with a sled or atv, weight is not much of a factor.
For us old guys who still walk, weight matters.
RG