Yellowtop n. : A kind of grass, perhaps a species of Agrostis.

Example:
How many watts can you run when you upgrade the big 3 and install a Yellowtop battery?

Taxonomy
AGM, deep cycle batteries, Optima batteries, high-performance, 12V Batteries, spiral cell, power cell, dry cell, lightweight, wound, heavy duty, NORTH AMERICA, LATIN AMERICA, EUROPE, ASIA, batteries, vehicle, English Deutsch.

Defination from the web:
Produces batteries for automotive, commercial, marine, and deep cycle uses.