I guess they figure you can pick up 2 batteries, one at a time, and run them parallel easier than manhandling a huge one? There are some huge marine batteries around...I can barely pick one of those up, much less carry it anywhere.
Not sure what I forgot today, but I know it's something...OTOH, I'm pretty sure I don't use my brain that efficiently to start with! So hopefully it ain't full yet :-)
Good plan, not using up the memory too quickly, wish I'd have thought of it.
How's the quest for the perfectboatgun coming along?