House batteries are charged but wont work.

I installed the new(ish) 12v continuous duty solenoid relay. Unfortunately it failed. Having the same result as the other starter solenoid *click-click* on - off. However this is a super cheap-o one from amazon that I am sending back. I will order a more higher end one instead of the bargain bin deal when I arrive at my next destination. Hopefully it will get me a different result as for now we are in the middle of preparing for a move up into Ithaca and who knows maybe I will find some electrical guru on the way. Until I can get back to digging around tho we will be side barring this whole ordeal.

Thanks once again to everyone for your input and time.