I recently bought Emtrac Plus Battery for my Mercedes on strong recommendations from a friend. Can someone tell me who manufactures Emtrac Plus Batteries? Not sure how it will perform.
Johnson control uses octagonal vent caps. The other two major players here are Exide and east Penn. Probably Panasonic being a major player in your area I'm guessing too.
Most of the starting batteries last by how they're treated rather than anything else, as in the cheapest battery that stays at full charge will last longer than the most expensive battery that is chronically under charged or frequently drained.