Where Is The 12V Battery On A Gen5 HEV?

Oh, the XLE pic above is an XLE AWD pic then, and I see the screw hole now, thanks.

 

Which maintainer brand. How many amps is it rated for ? How long do you leave the car sit before starting it ?

 

You are worrying unnecessarily, as neither Gen 4 nor Gen 5 has any real 12-V battery issues. Every now and then, a few people have isolated problems arising from such as the new car sitting in the dealer lot for too long before purchased, car not being driven frequently or long enough, using third-party accessories, using the accessory mode, unauthorized modifications, etc.

Occasionally using a battery maintainer is a good idea. You don't need to permanently install it. Using it every few months is typically enough, also of course, always using it when the car is not regularly driven. Any Noco Genius will do. The 12-V-battery-management system doesn’t like to fully charge the 12-V battery; therefore, occasionally fully charging it using a battery maintainer will extend its life and/or reduce the chances of a low-charge battery.