Enhanced Flooded Battery
An improved flooded lead-acid battery designed to withstand significantly more cycles.
To achieve this, carbon additives are added to the lead and the electrodes are surrounded by a special separator pocket.
EFB batteries are intended for use in vehicles with start-stop technology, electrically when the car stands and is restarted when the vehicle is moving off. They also support vehicles with energy recovery, where the battery is charged, for example during braking. Thanks to their high cold-start performance, however, they are also suitable as starter batteries in cars with many consumers.
They also withstand high temperatures well and are therefore suitable in hot climates or for installation directly in the engine compartment - even in vehicles with conventional drive systems.
In addition to EFB batteries, AGM batteries are also installed in vehicles with start-stop function. If an AGM battery is installed at the factory, it may only be replaced by an AGM battery. An upgrade from EFB technology to AGM is always possible. Both start-stop batteries must be registered in the vehicle management system after installation.