Batteries are a great adjunct to a home power system.
In terms of $ vs. capacity, I’m less concerned with density (versus, I don’t want a 20 lb battery on my cell phone) in a home system. That said, what Li definitely provides (any decent brand) is long storage/low-self discharge.
So for random infrequent emergency use, Li is great. The Li jump pack I carry in my vehicle requires way less attention than the older chemistry packs I used to carry – those I’d charge every 2 months or so, when not used.
If you have the space, and are planning for a higher capacity/more often used system, then considering various chemistries may yield a curve of $ vs. storage options.
I talked to an old-timer about 20 years ago, who got a great deal stumbling across some defective utility -grade batteries. They were brand new, but slightly outside spec sheet parameters on something minor (case sizing, or something like that). He bought them from the dealer, at not a whole lot over their scrap value. Almost as rare as that mint-condition barn-find vintage Corvette, but deals can be had…..
I’m looking forward to an update from 90cummins; his hybrid system is evolving into something quite interesting….
Rdgs, D.
