While doubt will be a issue. I am comparing weight saving, cost and et change for future projects. With Battery on front of fed more than likely not changable with lithiun.Since feds are weight sensitive in that area.

I am wondering whatt can of life you get out of thse high dollar light weight batteries. Will taqke good life to make fiesable if weight is not needed on front end. just getting info for idea as to cost verse gain.

Life expectancy?

I use the 16 volt Altronics battery. Bought in 2014 or 2015, still works great. I don't currently use an alternator either. Takes 5 - 9 minutes to charge between rounds.

They aren't cheap. I have a brand new one in stock with charger for $1200.