Woke up today thinking my key fob battery needed replacing, got the spare and still no joy. So opened the drivers door with the key blade and still no life from the dashboard when I got in. So diagnosed a flat battery fairly quickly. Note drivers door is the only one you can open with no voltage. I connected my 1000amp Noco jumpstarter and it wasn't enough to revive the bella? We got it started doing things the old fashioned way with a jump start from the 500x at 3500rpm. Has anyone had a similar experience I think the internal lighting caused the current drain but I don't know why? Roof lights came on when the external booster was connected? Once we got it started every fault you can imagine came up, TPMS, ATS, Hillholder, FCWs, AAC, no DNA, adaptive lighting, Jesus wants me for a sunbeam dash board! Took it for a 75 mile drive and most faults cleared except for ATS, FCWS and AAC, switched it off, at the next restart all appears to be okay. I've got it on the Alfa battery conditioner at the moment but I'm struggling to understand what happened. I did note the central console was illuminated for a long time after key off but the park brakelight switch takes about 5 minutes to go off, is this normal?