2011 G37. Battery dies if car left 7-10 days unused. Battery has checked out ok. Where to check net?
Thanks, Grampa Bill

Are the terminals clean and free of corrosion? Have you checked the alternator? Most auto parts stores will check your electrical system for free. What about after-market add-ons like radio, Bluetooth kit or security system, then one of these could be draining the battery. Some of these may need to have a permanent live connection so that they retain some settings like the time or radio channel frequency, causing a slow drain.

Are you driving the car long enough to keep the battery charged? If not you may need to hook it up to a trickle charge.

kimbill wrote: ↑

Sun Oct 14, 2018 11:39 am

2011 G37. Battery dies if car left 7-10 days unused. Battery has checked out ok. Where to check net?
Thanks, Grampa Bill

How old is your battery?
Are all of the cells of your battery accepting a full charge?
Use a battery hydrometer to test them



Obtain a digital voltage monitor to monitor the output charging voltage of your alternator



Telcoman

Here's a troubleshooting video that may help

https://www.youtube.com/watch?v=y66xOBU5GzY&t=15s