Batteries are like everything else right now; it's ridiculously hard to find anything to buy. I buy hundreds of Deka batteries for off grid solar system. My local Deak dealers has been having great difficulty sourcing batteries for me including 6v GC. If he happens to call the warehouse right when they get a pallet in it's fine. If it's just after the pallet sells out there's quite a wait. I've had to take some "other" brand batteries just to finish some jobs.
It's the same with trucks, bicycles, circuit breakers, PVC conduit, etc. Factories just can't keep up with the demand, particularly given all fires, freezes, tornadoes, covid, etc.
I'd absolutely go back with Deka if you can find them. Concord and Trojan would also be excellent choices.
