10%battery common issue, anyone actually had it fixed?

[jonnypym123]

Most will have probably encountered it at something, I've had it on both A8 d3s I've owned what I want to know is has anyone had a energy management software upgrade and had it fixed?

Example: I'd been away for a week and started the car battery was 100% I thought great it's fine. Ran the car for 30 minutes shutdown, start the car 3hrs later it's at 10%. Another time I start the car and battery is at 10% run the car to 50% stop and shutdown restart the car and at 100% I'm confident it's the power management system, it's like the car thinks the battery is low so shutdown systems accordingly. In the past I've messed on with coding the battery and not coding the battery neither fixes it long term. I've caved and booked it in at an Audi dealership for a diagnostic I just don't want them trying to sell me a battery as I know the battery is fine several batteries over 2 cars can't be the battery. Getting to the point of resenting the car a bit