Looking at a 2008 997.1 Turbo with approximately 51,000 miles. Want to know your thoughts on this report.

Highlights and my thoughts after looking at the Overview Table on page 1 of the report.
1.) Car needs new battery- Page 1, Vehicle electrical system voltage: 11.409 V.
Are page 17 Fault Codes 8005 (Terminal S) and 8001 (System voltage) also caused by a battery issue?
Is page 18 Fault Code C140 Communication instrument cluster also caused by a battery issue?
2.) Not sure what BOSE amplifier external Fault Code 800A is- See Page 16 of report (Control unit, coding 800A Microphone).
3.) Car needs new coils and/or spark plugs- Page 1 Fault Codes P0300, P0306, P0305, Pages 27-42 for more detailed info on these codes and Cylinder 6 and 5 misfire detected. Any other issues?

Page 71 - 72 of report shows Range 1 through Range 4. Range 4 was at 253.8 hours and car is at 1382 operating hours so I do not believe this is an issue. Ranges 1-3 were more recent at around 7 hours ago, but should not be an issue according to past feedback.

Any thoughts on the data and if I interpreted it correctly would be greatly appreciated.
https://drive.google.com/file/d/1Fli...ew?usp=sharing

 

To get an idea of your battery status the battery voltage should be measured on the battery poles and should be for a charged battery >12.6 Volts with no load.