Two things:
1. Have you checked Battery Boys? (352) 643-1241. As I recall they had US Batteries in stock last time I was there.
2. When I purchased Trojan replacement batteries for my cart, the installed US Battery fill system was no longer compatible. My cart has six 8-volt batteries. It’s still taking up space in my garage, so I’ll give it away rather than throw it away. If you, or anyone is interested, please contact me.
Phil
Wonderlandap@aol.com