I'm currently planning out my firewall and battery locations and trying to decide where to mount my dual EarthX ETX900 batteries. Couple of options:
1. try and fit both on the firewall. (I know folks will be concerned about temps here.)
2. mount both on a dual tray system like Bob Condrey's done here:
3. mount one on the firewall (primary) and one in the back (backup) in the stock location. I'd do the primary up front because the wire run is shorter.
Is there any reason I should do #3? I'm leaning toward #2 or #3, since it's a pain to find spots for two batteries on the firewall, assuming that #3 isn't totally unreasonable.
Would love to hear your thoughts!