iQ Power AG is the first manufacturer whose car batteries have been examined and tested by the TÜV technical control board. One thing that makes the ECO products so special is its electrolyte mixing feature, a technology that is unique among all car batteries and makes the ECO batteries especially well-suited for use in vehicles that have a large number of electrical features and conveniences. iQ Power covers the full range of European battery sizes with its assortment of 15 new ECO batteries, from the ECO 40 to the ECO 100. ECO batteries come with an iQ Power warranty of three years. The ECO batteries are maintenance free.