Just this minute I returned from "checking in" on my aged neighbors. I do light maintenance on their 2010 Accord (2.4l).
The AAA man came by to charge up their car which has been sitting. I check the battery (which I installed) occasionally and it's still good. I suppose idle time, short trips and cold weather took it down. Still, the AAA guy said the battery was OK still.
I offered to throw my charger onto the battery as many need it now-a-days. At that point the old man -they're both 87- looked tired and sank into a chair. Hey, he had just had his lungs drained this morning so I figured to get out of his face for a while.
I'll again ask him in an email tomorrow.