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Banner BATTERY KNOWLEDGE

HOW TO

START-STOP BATTERIES:

PROPERLY READING INTO THE SYSTEM AND REGISTERING

 

What you need to watch out for when reading start-stop batteries into modern vehicles and registering them. 

There are basically two essential elements: The appropriate knowledge, which we will pass on to you through this website. The second is the suitable equipment, which you can buy from Banner for a reasonable price. We recommend that you use the Banner Battery Service Tool (BBST) and Memory Saver. If you don’t have these at hand, please do not try to do it yourself. In this case, it’s better to have this done by a Banner sales partner .

Start-Stopp Auto

First of all: When replacing the battery (or batteries), be sure to observe the operating instructions of the vehicle manufacturer, as the information provided here is only intended as a rough guide.

How does the Battery Energy Management System (BEM) work in general?

Frequently shutting down and restarting the engine combined with the increased energy requirements due to comfort applications such as seat heating, navigation systems, etc. pose great challenges for start-stop batteries. For this reason, automobile manufacturers have developed intelligent battery energy management systems (BEM) that monitor the car battery using sensors. This is to ensure a long service life despite the higher load. 

If the battery no longer provides the desired performance, the system records a „defective battery“ and replacement is required.

 

You must make sure that the old battery is replaced by an equivalent battery in terms of technology, performance class and size:

  • An AGM battery (Absorbent Glass Mat) must always be replaced by another AGM battery. In identical housing and with a similar performance class.

    PS: Minor deviations in capacity or performance during cold start have no effect on the safe start and the optimum power supply of the electrical system! 

  • An EFB battery (Enhanced Flooded Battery) is to be replaced at least by an EFB battery that’s in perfect condition or by an AGM battery in certain circumstances. In identical housing and with a similar performance class.

    PS: Minor deviations in capacity or performance during cold start have no effect on the safe start and the optimum power supply of the electrical system!

 

Does the Battery Energy Management System (BEM) need to be notified of the installation of a new battery when a  battery is changed ?

Depending on the make of car and the functionality of the respective system (open or closed), modern vehicles with Battery Energy Management (BEM) may or may not require or recommend that the new battery be registered.

If the new battery is not registered, error messages from the on-board computer may occur and comfort applications may not work or may only work to a limited extent for a short period of time. Displayed error messages can usually be reset by deleting the error memory. If the new battery is registered, it usually takes a few days for the system to detect the new state of the battery and reset the error messages automatically.

Different battery energy management systems on the market.

Most car manufacturers, as well as BMW, work with an open system, i.e. the independent aftermarket can install a suitable replacement battery without having to reprogram the vehicle electronics. However, manufacturers such as Audi use a closed system and assign so-called BEM codes for original batteries and original replacement batteries. The independent aftermarket is not able to provide this kind of code for replacement batteries!

PS: In Volkswagen Group repair workshops (Audi, Seat, Skoda, VW), calibration takes place via a guided function of the online diagnostic and information system (ODIS Offboard Diagnostic Information System). Data such as the BEM code, serial number and nominal capacity of the new original replacement battery are entered. In this way, the energy management system knows immediately that a new battery has been installed. The Volkswagen Group is currently able to enter any 10-digit serial number. The VW serial number is used for tracking the battery and for warranty purposes.

 

Is it possible to install the battery without a BEM code?

Yes, it is possible to install a non „BEM-approved battery“ using the example of Audi. However, a battery must be used that is of original equipment quality (the best would be Running Bull EFB or AGM), and identical in size to the original battery and has the labelled performance of the original battery – at least in terms of capacity.

 

No BEM code in an emergency?

Don’t worry, the Banner Battery Service Tool (BBST) can help.

If the system is open, this tool is used to register the new battery in the on-board computer. In a closed system, the newly purchased  replacement battery can even be configured by vehicles with BEM. Furthermore, standard or manufacturer-specific error codes are generally read out of the system or deleted. This is even after a voltage interruption during battery replacement and if the on-board computer in the vehicle was without power. 

 

Even with Audi models which, unlike other brands, always ask for a code when changing batteries, the Banner Battery Service Tool (BBST) can help can generate the Battery Energy Management code (BEM code), so that the battery change is registered properly and that various functions are not restricted. The Banner Battery Service Tool (BBST) can help also has a system check that checks the complete charging system including battery and alternator and contains an integrated product finder to identify the appropriate replacement battery.

 

PS: What actually happens when the BEM code is entered?

Entering the BEM code does nothing other than reset the configuration or actual values of the old battery stored in the control unit and save the current mileage.  

 

It is important that you use the Banner Battery Service Tool (BBST) in combination with the Memory Saver

In order to prevent the deletion of vehicle settings and codes when changing batteries, the power supply of the electrical system must be externally supplied with power, – for example with a Memory Saver. By maintaining the voltage in the vehicle via the OBD connector (On Board Diagnostic), this reliably prevents the loss of vehicle data. When the battery is changed, vehicle data such as the navigation settings, telephone book, radio station, electronic seat position, etc. are remembered. Another advantage: If a battery is replaced with the Memory Saver, it is usually not necessary to re-register.

 

The simultaneous use of a Memory Saver for voltage maintenance and a Banner Battery Service Tool (BBST) can help does not pose any problems, since both devices can be combined effortlessly by the integrated adapter.

Batterie wechseln

 Self-learning system.

If a battery is advanced in age, the vehicle system records the „defective battery“. If a new battery is installed without entering a BEM code, the vehicle will not recognise that a new battery has been installed. Therefore, the new battery condition must be communicated to the energy management system by entering a BEM code, or initialised via a multi-brand diagnostic tool such as the Banner Battery Service Tool (BBST), if both are not available, the system must first configure the new battery condition. The more „trigger events“ (impulses, signals e.g. starts, cold starts, cycles) there are in the battery, the faster the system learns this. The manufacturer specifications vary on the time this will take. It can be between 2 operating hours or up to 6 days.  The vehicle computer usually successively releases the previously restricted systems, such as the full power of the air conditioning system, within a few hours. It may take longer for displayed error messages to be reset in the error memory. If this does not actively happen through a Banner Battery Service Tool (BBST) can help, it usually takes a few days (up to 6 days depending on the manufacturer) for the system to detect the new battery status and reset the error messages automatically.

Start-Stopp-Batterie Icon

The current market situation.

More and more car manufacturers recommend or require that the new battery be configured by the system. You must then visit a mechanic so that the energy management system is informed by a diagnostic device that a new battery is on board and the stored data is reset. Nowadays, multi-brand diagnostic tools, such as our Banner Battery Service Tool (BBST) can help can carry out this so-called initialisation for numerous car brands. In addition to resetting configuration or actual values for the old battery, the mileage at the time when the battery is replaced is usually also registered in the control unit. 

 

Conclusion: Purchasing and BEM coding an original replacement battery instead of a replacement battery from the independent aftermarket – which does not have BEM coding – only has the short-term advantage that the complete functionality of all systems is immediately available. Please note: The battery reaches this functionality without BEM code, usually also after some time and various „trigger events“ (impulses, signals e.g. starts, cold starts, cycles). 

Basically, changing a start-stop battery poses no safety risk. 

 

If a high-quality replacement battery is installed, even without entering a BEM code, there is no safety risk, there is no risk of overcharging of the newly installed replacement battery, there is no increased battery wear, and the vehicle electronics or other components are not damaged. Nowadays, multi-brand diagnostic tools, such as the Banner Battery Service Tool (BBST) can help can carry out this so-called initialisation step for numerous car brands. 

 

Please note: 

Never install a conventional wet-cell battery in a vehicle with a start-stop function that is equipped with an EFB or AGM battery as standard. If necessary, an EFB or AGM battery must be used again! In identical housing and with a similar performance class.

PS: Minor deviations in capacity or performance during cold start have no effect on the safe start and the optimum power supply of the electrical system! 

 

When upgrading technology from EFB to AGM batteries, it is essential that the new battery is configured in the system for start-stop vehicles with battery energy management systems (BEM)! The Banner Battery Service Tool (BBST) is perfect for this. 

If you have any questions, please contact your Banner customer service representative, your Banner sales partner or contact us directly online.

 

Banner tip for upper class cars up to the luxury class:

When removing the old battery (or batteries), the disconnection sequence must be strictly observed, especially with two-battery vehicle electrical systems, as otherwise the safety battery terminals could trip. Here, you have to disconnect first the left AGM battery and then the right conventional wet-cell battery according to the operating instructions, for example VW Phaeton V10 TDI (our test car was built in 2006)! 

BBST

The right tool for changing start-stop batteries

 

BBST Banner Battery Service Tool

 

  • Automatic generation of the manufacturer-specific battery energy management code (BEM)
  • Reading and deleting manufacturer-specific error codes
  • Inspection of battery, starting capacity and charging system
  • Text description with graphics for positioning OBD diagnosis plug
  • Y adapter for retaining voltage of the wiring system via Banner Memory Saver (optional)
  • Battery allocation: Covers over 41,000 cars and 30,000 utility vehicles
Video BBST
Banner HOW TO: Change start-stop car battery, register and generate BEM code

Replace start-stop car battery, register and generate BEM code

  • Connect Memory Saver to the OBD connector

    • To save all vehicle settings and data, connect the Memory Saver to the OBD connector.
  • Change the battery

    • It is essential to observe the warning information on the battery and the operating instructions of the vehicle!
    • Only install a battery with an open-circuit voltage of >12.5V.
    • Before installing and removing the battery, switch off the engine and all power consumers.
    • Avoid short circuits due to tools.
    • Change the battery in the vehicle.
    • When removing the battery, first disconnect the negative terminal (-), then the positive terminal (+).
    • Before installing the new battery, clean the floor space in the vehicle.
    • Tighten the new battery.
    • Gently clean battery terminals and pole terminals and lubricate them with acid-free grease.
    • For installation, proceed in reverse order, i.e. first connect the positive terminal (+) and then the negative terminal (-). Ensure that the pole terminals are firmly attached.
    • Original attachments / coatings must be replaced.
  • Unplug the Memory Saver and connect the BBST

    • After the battery has been replaced, the Memory Saver can be removed.
    • Now connect the BBST to the OBD connector.
  • Select vehicle information on the display

    • Switch on the BBST and follow the instructions on the display.
  • Registration will take a few minutes 

    • The battery is now registered in the vehicle. This process is completed within a few minutes.
    • In closed systems, the manufacturer-specific battery energy management code (BEM) is automatically generated.
    • Afterwards, unplug the BBST.

     

    • Please note: For vehicles with “Keyless Go & Entry” systems, it is important to ensure that many control units in the vehicle are already ready when the keycard or key is only close to the vehicle!
    • Banner Tip: For safety reasons, always use a degasification tube when installing the battery in the interior, as this will discharge the gases to the outside.   
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What do car manufacturers and car importers say about changing start-stop batteries?

  • Abarth

     

    The starter battery can be replaced without configuration, in individual cases the date and time must be readjusted.

     

    Banner Conclusion: No registration required, control of electrical functions after battery change recommended.

     

    © Shutterstock.com

  • Alfa Romeo

     

    The starter battery can be replaced without configuration, in individual cases the date and time must be readjusted.

     

    Banner Conclusion: No registration required, control of electrical functions after battery change recommended.

     

    © Shutterstock.com

  • Audi

     

    For A6, A8 and Q7 models with battery energy management from model year 2003/04, from 2010 almost all models with battery energy management and start-stop function (ultra) require configuration. Installing an original battery or original replacement battery and BEM coding. Without configuration or by installing a replacement battery from the free aftermarket, this may cause restrictions in the functionality and increased battery wear due to incorrectly functioning shut-off stages. 

     

    Banner Conclusion: Registration recommended, BEM code required, comfort features may not work immediately without registration unrestricted.

     

    © Shutterstock.com

  • BMW

     

    Registration is required for all start-stop vehicles with IBS (intelligent battery sensor) from 2008 onwards. Without registration, the battery may be overcharged, otherwise the management system will not recognise that a new battery has been installed.

     

    Banner Conclusion: Registration recommended, required if the battery type has been changed, error memory is deleted, short-term restriction of comfort functions without registration possible.

     

    © bannerbatterien.com

  • Citrn

      

    The original battery can be exchanged for a suitable model from the independent aftermarket. After reconnecting the battery, all electrical functions should be checked, but a diagnostic tool is not required.

     

    Banner Conclusion: No registration required but is recommended, control of electrical functions after battery change recommended. Some car manufacturers, especially French manufacturers, have to wait a maximum of 5 minutes after changing the batteries before switching on the ignition, otherwise the codes of the control units could be lost.

     

    © Shutterstock.com

  • DS

     

    The original battery can be exchanged for a suitable model from the independent aftermarket. After reconnecting the battery, all electrical functions should be checked, but a diagnostic tool is not required.

     

    Banner Conclusion: No registration required but is recommended, control of electrical functions after battery change recommended. Some car manufacturers, especially French manufacturers, have to wait a maximum of 5 minutes after changing the batteries before switching on the ignition, otherwise the codes of the control units could be lost.

     

    © Shutterstock.com

  • Fiat

     

    The starter battery can be replaced without configuration, in individual cases the date and time must be readjusted.

     

    Banner Conclusion: No registration required, control of electrical functions after battery change recommended.

     

    © Shutterstock.com

  • Ford

     

    All cars with a start-stop system  require a reset of the battery control module. The installation of original Ford Motorcraft EFB start-stop batteries is also recommended.  

     

    Banner Conclusion: Resetting the Battery Energy Management System (BEM) and checking electrical functions after battery replacement recommended.

     

    © Shutterstock.com

  • Honda

     

    The starter battery can be changed without configuration. The audio and navigation systems are deactivated and the date and time are reset. 

     

    Banner Conclusion: No registration required, control of electrical functions after battery change recommended.

     

    © Shutterstock.com

  • Hyundai

     

    For models with the ISG (Idle Stop&Go) start-stop system, the battery must be initialised. Meanwhile, the vehicle remains locked for up to 4 hours. The ISG system can then be used again afterwards.

     

    Banner Conclusion: Initialisation of the battery required at start-stop, lasts up to 4 hours, vehicle can not be used in the meantime. We are still checking whether this applies to all current models.

     

    © Shutterstock.com

  • Kia

     

    For models with the ISG (Idle Stop&Go) start-stop system, the battery must be initialised. Meanwhile, the vehicle remains locked for up to 4 hours. The ISG system can then be used again afterwards.

     

    Banner Conclusion: Initialisation of the battery required at start-stop, lasts up to 4 hours, vehicle can not be used in the meantime. We are still checking whether this applies to all current models.

     

    © Shutterstock.com

  • Lancia

     

    The starter battery can be replaced without configuration, in individual cases the date and time must be readjusted.

     

    Banner Conclusion: No registration required, control of electrical functions after battery change recommended.

     

    © Shutterstock.com

  • Mazda

     

    With all start-stop models, a configuration process only has to take place if no voltage maintenance (e.g. Memory Saver) is used. Otherwise, initialisation of various systems (electric windows, steering angle sensor, sunroof, clock and audio, tyre pressure monitoring) may be required. If the car is equipped with an automatic start-stop system, this should also be initialised. This means that the start-stop function is always available immediately after battery replacement. 

     

    Banner Conclusion: No registration required but is recommended, control of electrical functions after battery change recommended. 

     

    © Shutterstock.com

  • Mercedes

     

    Whether programming the new start-stop battery (VRLA Valve Regulated Lead Acid=AGM Absorbent Glass Mat) is necessary depends on the vehicle type and the respective model as these differ considerably in the electrical system architecture. 

     

    Banner Conclusion: For many models no registration is required but is recommended, for some newer models from model year 2016 registration is required, control of electrical functions after battery change is recommended. As a general rule, if no recommended voltage maintenance occurs when changing the battery, the new battery must be configured (with Banner Battery Service Tool - BBST). 

     

    © Shutterstock.com

  • Mini

     

    All current models have an intelligent battery sensor (IBS) to monitor the power supply of the electrical system and battery. When calculating the charging current of the alternator, the condition of the battery and its age are also taken into account. Therefore, if the battery is changed this must be registered with a Mini diagnostic tool. If a new battery is not registered, the charging current of the alternator is not adjusted correctly. As a result, the new battery is not charged properly. This may result in premature failure. But don’t worry, there should be no damage to the on-board electronics.

     

    Banner Conclusion: Registration recommended, required if the battery type has been changed, error memory is deleted, short-term restriction of comfort functions without registration possible.

     

    © Shutterstock.com

  • Mitsubishi

     

    For models with start-stop system, the control unit that monitors the battery must be reset using a diagnostic unit. 

     

    Banner Conclusion: Registration recommended, comfort features may not work immediately without registration unrestricted. 

     

    © Shutterstock.com

  • Nissan (Infiniti)

     

    After the battery has been changed, the automatic windows must be configured again. Additionally, the radio and on-board computer must be reset. 

     

    Banner Conclusion: No registration required, control of electrical functions after battery change recommended.

     

    © Shutterstock.com

  • Opel

     

    If a defective original battery is replaced with an Opel service battery, the system configures its status automatically. Until this is fully detected, functions may be restricted temporarily to protect the new energy storage device. When using a battery from the aftermarket, identical performance cannot be guaranteed. The battery status configuration process described above has been necessary for all models since 2011.

     

    Banner Conclusion: No registration required, control of electrical functions after battery change recommended.

     

    © Shutterstock.com

  • Peugeot

     

    The original battery can be exchanged for a suitable model from the independent aftermarket. After reconnecting the battery, all electrical functions should be checked, but a diagnostic tool is not required.

     

    Banner Conclusion: No registration required  but is recommended, control of electrical functions after battery change recommended. Some car manufacturers, especially French manufacturers, have to wait a maximum of 5 minutes after changing the batteries before switching on the ignition, otherwise the codes of the control units could be lost.   

     

    © Shutterstock.com

  • Porsche

     

    It is absolutely necessary to configure all Porsche models, otherwise the start-stop function is not ready for operation. Without configuration or by installing a replacement battery from the free aftermarket, this may cause restrictions in the functionality and increased battery wear due to incorrectly functioning shut-off stages. 

     

    Banner Conclusion: Registration required, start-stop does not work without registering the new battery, control of electrical functions after battery change recommended. 

     

    © Shutterstock.com

  • Renault

     

    No configuration process is necessary with the current vehicle models. 

     

    Banner Conclusion: No registration required, control of electrical functions after battery change recommended. 

     

    © Shutterstock.com

  • Seat

     

    On models with a start-stop system (Ecomotive), the control unit that monitors the battery must be reset using a diagnostic unit. Installing an original battery or original replacement battery and BEM coding. Without configuration or by installing a replacement battery from the free aftermarket, this may cause restrictions in the functionality and increased battery wear due to incorrectly functioning shut-off stages. 

     

    Banner Conclusion: Registration recommended, BEM code required, comfort features may not work immediately without registration unrestricted. 

     

    © Shutterstock.com

  • Skoda

     

    For models with a start-stop system (GreenLine), the control unit that monitors the battery must be reset using a diagnostic unit. Installing an original battery or original replacement battery and BEM coding. Without configuration or by installing a replacement battery from the free aftermarket, this may cause restrictions in the functionality and increased battery wear due to incorrectly functioning shut-off stages. 

     

    Banner Conclusion: Registration recommended, BEM code required, comfort features may not work immediately without registration unrestricted. 

     

    © Shutterstock.com

  • Suzuki

     

    The starter battery can be replaced without configuration, in individual cases the date and time must be readjusted.

     

    Banner Conclusion: No registration required, control of electrical functions after battery change recommended.

     

    © Shutterstock.com

  • Toyota (Lexus)

     

    The new battery does not have to be configured for the most current car models. 

     

    Banner Conclusion: No registration required, control of electrical functions after battery change recommended. 

     

    © Shutterstock.com

  • Volvo

     

    No configuration required, but the car must be adapted to the new battery. This provides a slightly different voltage than the old battery. The charge balance manager of the vehicle must be reset in order for the car to be perfectly adapted to the new battery and its characteristics. Furthermore, it may be necessary to reinitialise the electronic windows and the sunroof, if there is one.

     

    Banner Conclusion: No registration required but is recommended, control of electrical functions after battery change recommended. Some electrical aids may need to be re-initialised.   

     

    © Shutterstock.com

  • VW

     

    For vehicles with battery energy management, i.e. all models with start-stop technology (BlueMotion), the configuration of the new battery is relevant. Installing an original battery or original replacement battery and BEM coding. Without configuration or by installing a replacement battery from the free aftermarket, this may cause restrictions in the functionality and increased battery wear due to incorrectly functioning shut-off stages. 

     

    Banner Conclusion: Registration recommended, BEM code required, comfort features may not work immediately without registration unrestricted.

     

    © Volkswagen Group

  • Abarth Auto
  • Alpha Romeo
  • Audi
  • BMW
  • Citroen
  • DS
  • Fiat
  • Ford
  • Honda
  • Hyundai
  • Kia
  • Lancia
  • Mazda
  • Mercedes
  • Mini
  • Nissan
  • Opel
  • Peugeot
  • Renault
  • Skoda
  • Toyota
  • Volvo
  • VW
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After the battery has been changed without the Banner Battery Service Tool (BBST) can help and without the Memory Saver

If, contrary to our recommendation, the battery has been changed without the Banner Battery Service Tool (BBST) can help and without the Memory Saver , the electric or electronic aids in modern cars can be  initialised  again as follows! In general, it is relatively uncomplicated to learn how to do this and it’s often described in detail in the vehicle’s operating manual. Here are our recommendations after a few test cases. In practice, this is how it work´s:

Electric windows: Ignition ON (i.e. the electronic instrument cluster lights up on the display), but the engine remains OFF! Lower the window completely on the driver's side, then close the window completely again and keep the button pressed for approx. 2 seconds after closing. This initialisation should also take place if the fuse has been changed or the plug on the window switch has been removed (e.g. when removing the door panel without disconnecting the battery). Often the operating instructions do not mention that this should be repeated for the other windows. However, it is nevertheless recommended to repeat this procedure for all other windows.

 

Steering angle sensor: Bonnet must be closed, ignition ON, engine ON, turn steering wheel to left until stop, turn steering wheel to right until stop, turn steering wheel back to middle position, engine OFF. This is how the system configures the steering angle sensor.

 

Tyre pressure monitoring: Ignition ON, keep "SET" button pressed for tire pressure monitoring until the tire pressure warning light flashes 1-2 times and you hear a sound. Tyre pressure monitor has now started to be configured by the system. The configuration process is completed when the vehicle has been driven for around 20 minutes.

 

Sunroof: Ignition ON, press "Raise sunroof” button until the sunroof is completely opened and then press button for „lowering / closing the sunroof“ approx. 2-3 seconds later.

Start-stop system: Press and hold the start-stop button until you hear a sound, then press and hold the engine start and start-stop buttons. An acoustic signal is heard again and a few seconds later the start-stop button lights up green. This is how the start-stop system is configured.

Please note: If the battery is low, the start-stop button may light up red again after a short period of time, and the battery must then be recharged. (See battery tip: Charging in the vehicle)

If the battery is quite old and if the charging attempts are still unsuccessful as the start-stop button remains red or flashes, then the only option is that the battery needs replaced.

 

Optional: If you retrofit a rear view camera yourself and this should cause problems, initialise it via the menu of the audio head unit, exactly as described in the camera operating instructions. In the test case, the following had to be done: Press the "VOL PUSH POWER" and "SEEK>>|" button on the device at the same time, enter code "92" in the diagnostics menu and confirm with the "ENTER" button. Back with "VOL PUSH POWER".

PS: For car models with the original camera this procedure is not necessary.

 

Often, the audio or navigation system also does not need to be configured.

Similarly, disconnecting the battery usually has no effect on the "Keyless Go & Entry" system. 

 

How a retrofitted car alarm system or a retrofitted parking heater behaves will be clarified by us in the near future and we will make sure we continue to provide you with continuous updated information on this.