The Bosch S6 High Performance AGM Battery uses cutting edge technology that provides constant optimum power even for short trips and stop-and-go traffic, up to 2x longer lifetime, flushed tops for minimized risk of acid leakage, dependable power in accordance with OEM requirements, excellent charge acceptance, better vibration resistance, free roadside assistance and a 4 year free replacement warranty. It is the only choice for start-stop vehicles and made with full frame grid technology, acid absorbing micro fiber glass matts and extra robust connections inside to extend lifetime and maximize reliability.