I did read somewhere that a cigar socket plug in device is available to maintain battery voltage and so preserve radio code and ecu settings if the battery itself has to be disconnected for whatever reason.
Even if I switch off my car alarm system, I still need my remote control to reset the alarm when I reconnect the battery. As I have only one remote, and trying hard not to line Peugeots pockets with the extortionate sum of money that they require for a replacement, a device that would maintain battery voltage would seem to be one solution in the event of a failure of my remote control and the need to disconnect the battery
can anyone help with - does such a device exist - does it work with the type of situation described above - how much is it - who makes it - who sells it
Any info appreciated