I agree it needs another light to indicate the battery is turned on. I'm very tempted to look into that panel, trace out the wiring, and come up with something that makes more sense to me. I'd like a green light to indicate power on, and the red one to say the battery is actually connected. There's gotta be a way to engineer this better.
But yeah, using solar and a battery tender to maintain the batteries was a very good choice. Better for the batteries. I have a better converter waiting for a warm day to install it as well.
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'The Silver HamShack' (2007 International 22FB CCD 75th Aniversary model)
Multiple Yaesu Radios inside and many antennae sprouting from roof, ProPride hitch
2012 shortbed crewcab 4x4 Toyota Taco TV with more antennae on it