VARTA

VARTA EFB M42L

EFB technology for cars

EFB batteries support applications that operate at a partial state of charge and don’t require the deep-cycling characteristics of an AGM battery. A polyfleece scrim material, added to the positive plate surface, makes this possible. This helps to stabilise the active material of the plates, which increases the endurance.

Benefits include:

• More than twice the partial state of charge and deep-cycling performance of conventional batteries.
• Support for a high number of engine starts and extended engine-off periods.
• Improved charge acceptance compared to conventional flooded batteries.
• Designs available that improve thermal stability for use in engine compartments and hot climates.
• Ideal for start-stop vehicle technologies without regenerative braking technology and for vehicles with higher-than-normal energy demands, whether that means a tougher drive schedule or multiple accessories and equipment installed.

EFB Technology Features

Scrim is an additional polyester element between plate and separator. The scrim holds the active material in place inside the plate and avoids the erosion of mass. The result: enhanced deep cycle resistance and superior charge acceptance.
The glued fleece helps the plates keep their proper position at all times and in every condition.

Acid Circulation (Mixing Element)

The acid circulator avoids acid stratification. It’s a construction element that uses the natural movement of the vehicle to keep the acid inside the battery in constant circulation. The acid density stays at homogenous levels, which enhances charge acceptance and extends the overall battery life.