The Varta Blue Dynamic EFB series is engineered to meet the evolving demands of modern vehicles that are equipped with entry-level Start-Stop systems. These batteries utilize Enhanced Flooded Battery (EFB) technology, which offers improved cycle life and superior performance compared to traditional flooded batteries. EFB batteries are specifically developed to handle more frequent engine starts and deeper discharges, making them an excellent choice for urban driving patterns where Start-Stop functions are frequently engaged. Varta’s Blue Dynamic EFB range is recognized for its consistent reliability, long service life, and exceptional ability to power multiple in-car systems such as infotainment, lighting, and heating, even when the engine is off.
The Varta Blue Dynamic EFB E46 is a battery that strikes a perfect balance between power, efficiency, and size. With a capacity of 75 Ah and a cold cranking amperage of 730 A, the E46 provides reliable starting power even in demanding weather conditions. It is designed to support Start-Stop systems by offering higher endurance and a better recharge rate than conventional batteries. The use of EFB technology means it can handle more charge-discharge cycles, increasing its resilience and lifespan. This makes it a reliable power source for modern mid-size vehicles that require enhanced electrical support without the need for a full AGM battery.
Physically, the Varta E46 measures 315 mm in length, 175 mm in width, and 175 mm in height. These dimensions place it in the H7 (LB4) group size category, a standard European size that is slightly shorter in height than the traditional L4 group (which has a height of 190 mm). This reduced height is particularly advantageous in vehicles with space constraints under the hood, where a lower profile battery is required. Despite its compact form, the E46 maintains high performance, offering powerful starting capabilities and strong resistance to vibration and temperature fluctuations.
In terms of design features, the E46 follows the standard European layout, featuring terminal layout 0 and terminal type 1. It also uses the B13 base hold-down, which is a widely used mounting format across many European vehicle models. This compatibility ensures ease of installation and secure fitting. The battery is maintenance-free, further simplifying vehicle upkeep for the driver.
When compared with similar EFB models, such as the Bosch S4 E10, Exide EL752, Halfords EFB 110, and Lucas LE110, the Varta E46 matches them in core specifications: 75 Ah capacity, 730 A cranking power, and identical dimensions. The key differentiator lies in the Varta brand’s strong reputation for quality control, precision manufacturing, and innovation. Many users and professionals consider Varta batteries a benchmark in reliability, particularly within the aftermarket sector.
To summarize, the Varta Blue Dynamic EFB E46 is a highly capable, compact, and efficient battery designed to meet the needs of vehicles with Start-Stop technology. Its enhanced endurance, European-standard sizing, and proven EFB technology make it an excellent upgrade from standard batteries and a solid competitor among leading brands in its class.