Hi,
I have 2010 Audi Q5. Currently is parked in a garage and i forgot to turn on engine for past two weeks, my battery's charge went down to the point of that i couldn't start the vehicle. I used trickle charger to charge it but now car beeps for 1 sec every 30 seconds, whether vehicle is on or off. I don't have any dashboard lights that could indicate certain system. Today I checked battery with voltmeter. Without engine running it shows 12.6V. Cold crank power looks good as when i was starting the engine, voltage didn't go below 11V.
While engine is running i get 13.4-14V, which means my alternator is good.
Thanks for help