Batteries offer maintenance-free construction. Flush cover design enhances overall battery performance, maintenance, safety, and convenience. Fortified posts, straps and welds resist vibration damage, and maximize current transfer. Enhanced crystallization of Power-Perform plates offer full-frame positive and negative plates to prevent life-robbing electrical shorts from exposed wire while maximizing power and energy storage capacity. Short-protector separators have thicker back web material that prevents plate-to-plate shorts. Fortified posts, straps, and welds resist vibration damage, maximize current transfer. Ultra-pure demineralized electrolyte precision filled to exacting levels for extended life.