AGM is basically a better Lead Acid battery without the maintenance. They're sealed batteries that don't require periodic fill ups
They usually last 3-6 years depending on your usage.
Lithium is our Top Choice for a Golf Cart Battery. They last the longest, about 8-10 years.
They have no maintenance, charge faster, and usually have pretty good warranties.
Lithium batteries usually cost more than the other 2 options up front, but you'll save money in the long run because of how long they last.