Very simple. I don't believe all the hype. They "SAY" you can drain Li to 100%. They "SAY" you can't discharge lead-acid more than 50%.
But, look at these to graphs size by side. The one of the right is for my Rolls battery.
View attachment 105944View attachment 105946
What the graphs show is that draining an Li battery to 100% drastically shortens it lifespan, just like lead-acid. In fact, depending on the rate of discharge, maybe Li is worse then lead-acid. Even the typical 80% discharge is still quite damaging.
So, I don't believe the hype can justify the extravagant price premium of Li.
I see! Yeah, that seems very reasonable. If both can easily give you 4000+ cycles at 50%, it's just up to the storage considerations I guess.
What would I have to be wary of while storing Lead Acid batteries in what is essentially my bedroom?