Technical Best diagnostic tool for coding Battery Management System ?

[force999]

Any recommendations for a diagnostic tool that can code the Battery Management System for a new battery on a UK 500 twinair ( with stop/start and two small wires on the negative battery post ). I fitted a new EFB Tayna battery but it doesn’t show any voltage increase when engine runs, whereas it does show an increase when I test the removed AGM battery. Was told I need to code the new battery to the car because of going from an AGM to an EFB.

 

[jackwhoo]

No coding of battery system required.
This has come up very recently.
Coding of batteries is more if a bmw / vag / maybe even Mercedes thing

 

[jackwhoo]

The charging system most likely detecting new battery and so not requiring significant charging.

Lots of people get put out by charging systems that charge battery on engine over run - "smart" charging systems
Voltage at engine idle can be low making people think alternator/ charging system not working correctly.

 

[force999]

No coding of battery system required.
This has come up very recently.
Coding of batteries is more if a bmw / vag / maybe even Mercedes thing

OK, thanks for replying. I had searched the forum and couldn’t see a definitive answer. So the car should self-learn? and how long would that normally take ?

 

[force999]

The charging system most likely detecting new battery and so not requiring significant charging.

Lots of people get put out by charging systems that charge battery on engine over run - "smart" charging systems
Voltage at engine idle can be low making people think alternator/ charging system not working correctly.

OK, thanks for replying - appreciated. I’ll venture out in the car and keep an eye on battery state and keep the old battery on board for get-me-home peace of mind .