And, batteries tend not to like huge sudden draws
What in the ever loving fuck are you talking about? Batteries are so hugely ideal for it they are now becoming the primary tool for grid scale stability. Fuck your little fridge, batteries can take the sudden draw of a coal fired power station disconnecting from the grid, and do so better than inertial stability systems ever could.
Like seriously, I can't let this go. Your comment has to be the single most incorrect thing anyone has said about batteries ever. We simply have no electro-mechanical system that can cope with sudden changes in draws then electro-chemical storage. Like, the reason you can start your car is because a battery can cope with a sudden draw of hundreds of amps, and the reason my car has more torque from stopped than any engine could ever hope to provide is because a bank of batteries in my car is able to deal with the sudden draw of the motors on my car literally 100x stronger than your pathetic little fridge or AC unit.
And no your fridge / AC doesn't draw twice it's nameplate at start-up, it's closer to 8 times, and that's not a problem for batteries which are in houses the world over, and have been used in houses off grid the world over long before we even figured out how to make modern lithium batteries.
Don't ever comment on batteries again at least until you've read a book.