Quote: Originally Posted by
galvitron 
I run 12 gauge from the battery to the M2 with an extra 15amp fuse by the battery.
Ah yes, thank you for putting that in there for the OP -- I forgot to.
Even though the m2-atx has a fuse internal, that will only protect the m2-atx in case of a short. You
need to have another fuse within 18 inches (preferably within 12 inches) of the battery. This will protect the battery in case of a short, and at the same time protect other devices from getting overloaded during that short.