…The most likely reason a jump from another vehicle with a good battery shouldn't work would be a bad connection, assuming the starter is working normally. A bad connection most likely will be where your battery cables are connected to the battery posts, and can just be that the posts and or cable end is dirty and not allowing a good connection. A cable/ post cleaner is readily available at any auto parts store, and big box stores automotive department ...
This is super important! The combo of electrical current and the dissimilar metals of the battery posts and the car’s cable clamps can produce a corrosive residue, which looks like a whitish-greenish-bluish gritty powder.
That does NOT conduct electricity, it’s an insulator that can grow between the post and clamp, messing with the charging from the alternator that the battery should be receiving. So, your battery gradually discharges over a long period, never getting a full charge.
When you start the car the starter demands a high current flow from the battery, which punches through the partial insulation created by the corrosion. Until it can’t, because the battery hasn’t been fully charged for a while, and can no longer supply the high current needed.
So, @dustinp’s point: the cleaner tool should be used to take the battery posts and the inside of the clamps down to bare metal. Which is actually pretty easy!
Then, carefully clean all the residue from all surfaces; somehow the residue is a starting point for more corrosion. Carefully because the residue is highly acidic. Don’t blow it off, don’t get it in your eyes. Usually I wear gloves. It’s highly soluble in water, so a wet paper towel can do the trick.
Battery post corrosion should be removed whenever you notice it, Farm and Fleet should have done it when installing the new battery.
One more tip: don’t connect the battery posts with a wrench or screwdriver or you’ll get a big surprise! I actually made this mistake in the tight confines of the CI battery compartment a few years back. Apparently I’d forgotten some of the lessons learned at my daddy’s knee… fortunately I didn’t kill the battery, but that’s another story.
