I have a bridge rectifier (because it was what was readily available as an integrated part) rated at 150A which I'm using to protect against intermittent reverse current (battery draining) in an automotive alternator:
Since there is no isolation between input and output ground, I just have it wired up using one diode (two terminals unconnected). Is there any better way to set this up? Would it make more sense to wire the alternator output to both "AC" inputs just to spread the current over two diodes?
I'm aware there are downsides to this whole setup, but it seems minimally viable for the time being until I feel like making a complete fix.