Can dead battery be charged from fuse box at 2 amps. ?

[Jager]

Originally Posted by JFP in PA

No. The dead battery cannot be recharged this way, the current requirements are way too high.

How much power does the Boxster use while turned-off, parked, and the doors closed?

Maybe with all the fuses pulled-out, and some patience, the battery could be charged over a few days (if the battery is in good shape). If it's a completely dead battery, and beyond half it's life, chances are poor.