EFB and AGM technologies for engines with frequent starting and stopping. Duracell Extreme batteries are designed for use in environmentally friendly vehicles with a built-in shutdown / start function. The EFB (Enhanced Flooded Battery) type is used mainly in medium and small cars, while the LCV type has only a basic level of support for the engine shutdown / start function. AGM (Absorbent Glass Mat) batteries are mainly used in executive and luxury cars, where more sophisticated engine shutdown and start functions are used as a standard in combination with braking energy storage technologies. Duracell Extreme premium products meet the requirements of leading car manufacturers, with a range of 5 models from 60Ah to 92Ah and are the premier choice for fuel-efficient vehicles.