It doesn’t matter if it’s a car, lorry or motorboat, the battery is always needed to start the engine.

Start-stop battery or conventional battery - what are the differences between the different technologies and

and where is the best place for which battery to be used? 

Batterie Warnung

Conventional battery (wet-cell battery)


A conventional starter battery, as the name suggests, is basically designed for a high short-energy boost to start the vehicle. As soon as the engine is running, the vehicle's charging system makes sure that the energy taken from the battery is recharged and additionally supplies all other electrical consumers. The state of charge (SOC) is kept as close to 100% as possible.


The conventional battery has been continuously developed since it was first released over 100 years ago and is still used successfully today. The lead-acid battery is still the best compromise between reliability, robustness, recyclability and price

Our conventional battery variants:

Power Bull PRO Batterien
Power Bull PRO
Starter and on-board power supply battery for modern passenger cars with the highest energy requirements
  • Original equipment quality according to BMW and VW specifications
  • Improved cycle behaviour, classification E2 according to EN 50342-1 thanks to optimised material formula
  • Cold start properties that are increased even further
  • Up to 50,000 engine starts

Power Bull PRO Batteries

Power Bull Batterien
Power Bull
Starter and on-board power supply battery for modern vehicles with high energy requirements
  • Designed according to OEM standards
  • Robust cycle behaviour; classification E2 according to EN 50342-1
  • Optimised cold start values, highest starting force
  • Up to 50,000 engine starts

Power Bull Batteries

Starting Bull Batterien
Starting Bull
Starter battery - proven a million times over
  • 4-chamber spill protection with integrated backfire protection
  • Great value for money
  • Reliable cold start behaviour 
  • Up to 30,000 engine starts

Starting Bull Batteries


Start-stop battery


A start-stop battery is responsible for much more than just starting the engine. Namely, to supply the various electrical consumers with energy when the vehicle is stationary, the engine is not running and the full power supply of the electrical system, including the next starting process, must still be ensured.


This means that the technology and components of a start-stop battery differ significantly from those of a conventional starter battery.


The start-stop system saves fuel at every red traffic light, is easy on your wallet and is good for the environment. The automatic start-stop system automatically switches the engine off and on againwhen you step on or step off the clutch or brake during a stop. 


If energy recovery is also carried out in the vehicle (recovery of braking energy), the start-stop battery works artificially at a lower state of charge (SOC State Of Charge at approx. 70%). 


Our start-stop battery variants:

AGM Batterien
Running Bull AGM
Starter and on-board power supply battery for start-stop vehicles with the highest energy demand
  • Valve regulated lead acid battery (VRLA)
  • Triple cycle stability compared to conventional starter batteries: highest rating E4/M3 according to EN 50342-1
  • Highest starting performance thanks to very low internal resistance
  • Up to 360,000 engine starts

Running Bull AGM batteries

Backup Batterien
Running Bull BackUp
Back-up battery for start-stop vehicles with extremely high energy requirements
  • Valve regulated lead acid battery (VRLA)
  • Triple cycle stability compared to conventional starter batteries; rating E4/M3 according to EN 50342-1
  • Original equipment battery for Audi, BMW and Volvo

Running Bull BackUp batteries

EFB Batterien
Running Bull EFB
Starter and on-board electrical-system battery for start-stop vehicles with high energy demands
  • Glass coating on the separator and special active ingredient formula
  • Cycle life that is twice as long as conventional starter batteries; classification E3/M2 according to EN 50342-1
  • “Carbon loaded”: The carbon additives mean that the charging time is significantly reduced.
  • Up to 270,000 engine starts

Running Bull EFB batteries

Please note: 

If a conventional wet-cell battery is installed in a vehicle with start-stop technology by mistake, due to an allocation error – or incorrect cost awareness, then a battery breakdown or total failure can happen. Depending on the driving profile (short distance, stop-and-go, etc.), a conventional starter battery will be defective  within a few months due to the extremely high cyclic load caused by the start-stop function.

A battery breakdown also leads to the failure of various vehicle functions (including start-stop).

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