In using the Porshce trickle charger, does anyone know if we have to be concerned about hydrogen gas build-up? I have the car in my garage when it's hooked up to the trickle charger, and it may be connected for days sometime...

 

The charger should shut off when the proper charge is reached. You should be ok.

 

you will probably blow up the garage. if you would like to get rid of that dangerous piece of equipment, i will take it off your hands for a small fee