Menu toggle

Non-Porsche Batteries

DWaldie

New member
Thanks for debunking some of the mystery surrounding these batteries. My new one is performing faultlessly except I now have to remember to turn off stop-start :)

 
This is on the Banner batteries site and is of interest because of folk-lore about the perils of replacing a battery that lacks a Porsche serial number and price.

QUOTE:

What happens when a battery without a BEM (Battery Energy Management) code is installed in a vehicle? Banner has had to consider this question in the case of Audi.

BEM = Battery Energy Management. In view of the increasing use of electrical power in modern vehicles, the battery constitutes a vital component. Therefore, in order to guarantee its long service life in spite of higher loads, vehicles such as the Audi A6 employ intelligent energy management.

Function. The massive rise in on-board power requirements in the latest car generation places fresh demands on batteries, especially in connection with micro-hybrid applications involving stop-start technology and brake energy recuperation. The BEM incorporates ongoing parameters such as the charging status and the age of the battery. This data is then reported to the vehicle computer, which decides upon the energy balance in the vehicle and if required, limits the use of comfort consumers such as seat heating or air conditioning and provides the driver with a warning.

Where possible, the aim is to constantly guarantee engine starts.

Differing systems. The majority of automotive manufacturers such as BMW operate with an open system, i.e. theindependent retrofitting market can install a suitable battery without the need to reprogram the vehicle electronics. However, producers like Audi employ a closed system and allocate so-called BEM codes for original retrofitting batteries. Unfortunately, such codes are unavailable for free spare part batteries.

Installation of batteries without a BEM code. Basically, the installation of a non-BEM free tested battery is possible as exemplified by Audi. However, a battery must be employed that possesses OEM quality (preferably Power Bull PROfessional and in the case of an original AGM battery, replacement with a Running Bull AGM), is of identical dimensions with the original battery and also has the same labelled performance as the original.

Self-teaching system. In the case of an elderly battery, the vehicle system stores the term "defect battery”. Accordingly, if a new battery is installed without the entry of a BEM code, initially the vehicle does not recognise the presence of a replacement. Therefore, the energy management system must either be informed of the new battery status via a BEM code input, or learn the new battery status. The more trigger events (impulses, signals, e.g. starts, cold starts) experienced by the battery, the faster this process is completed. The vehicle computer then successively releases the previously limited systems, e.g. the full performance of the air conditioning system.

No safety risk. If a high-quality battery is installed without the input of a BEM code, this neither constitutes a safety risk, nor a possible danger of damage to the vehicle electronics or other components.

END QUOTE:
 

Posts made and opinions expressed are those of the individual forum members

Use of the Forum is subject to the Terms and Conditions

Disclaimer

The opinions expressed on this site are not necessarily those of the Club, who shall have no liability in respect of them or the accuracy of the content. The Club assumes no responsibility for any effects arising from errors or omissions.

Porsche Club Great Britain gives no warranties, guarantees or assurances and makes no representations or recommendations regarding any goods or services advertised on this site. It is the responsibility of visitors to satisfy themselves that goods and/or services supplied by any advertiser are bona fide and in no instance can the Porsche Club Great Britain be held responsible.

When responding to advertisements please ensure that you satisfy yourself of any applicable call charges on numbers not prefixed by usual "landline" STD Codes. Information can be obtained from the operator or the white pages. Before giving out ANY information regarding cars, or any other items for sale, please satisfy yourself that any potential purchaser is bona fide.

Directors of the Board of Porsche Club GB, Club Office Staff, Register Secretaries and Regional Organisers are often requested by Club members to provide information on matters connected with their cars and other matters referred to in the Club Rules. Such information, advice and assistance provided by such persons is given in good faith and is based on the personal experience and knowledge of the individual concerned.

Neither Porsche Club GB, nor any of the aforementioned, shall be under any liability in respect of any such information, advice or assistance given to members. Members are advised to consult qualified specialists for information, advice and assistance on matters connected with their cars at all times.

Back
Top