additional power source with Voyager
I would like to add an additional power source to run parallel to a solar panel. My current setup is a Voyager with a 50W panel. This is used to power some garden irrigation equipment. We have days where there really isn't a lot of sunlight.
I don't want to oversize my battery (maybe just use a 20AH AGM SLA for now) -- my load is somewhere in the 300-500ma range continuous.
I was consider using a small DC power source as a backup to the solar (or maybe its the other way around) to keep the battery charged.
my question is - can I just put a small wall 12v DC supply in parallel with the solar PV input on the voyager or do I need to add some form of diode to prevent back feeding the panel and or dc supply? do I need an ideal diode or can I just hook this up without any other parts?