EverLast CB16AL-A2 12V Conventional Battery with Acid Pack (8 1/16 L X 2 3/4 W X 6 7/16 H) POWER: This design includes heavy duty alloy grids to boost cranking power ensuring the highest possible starting power available in a conventional battery design. PERFORMANCE: EverLast conventional batteries feature advanced separators and through-the-partition construction to shorten the current pathway and reduce electrical resistance. EASY MAINTENANCE: The manifold vented cover and durable see-through polypropylene case make periodic maintenance as easy as possible. LONGER LIFE: Sealed Terminals & Heat Sealed Cover Protects Against Seepage, Reduces Corrosion, and Extends Battery Life. FILL AND CHARGE: Exact Fill Volume Acid Bottle Delivers The Correct Amount Of Electrolyte (Acid) With No Leftover Disposal Required. Dry-Charged Plates Provide 70-80% State-of-Charge When Initially Filled With Electrolyte (Acid). Acid Pack Packaged Separately for Safety