Here are a few strict guide lines that I follow to ensure a happy and productive partnership of parts. Remember most companies have to pay to get rid of some surplus.
1.If you don't ask you will not receive legally, I have received free things like:
-73 used power packs (retail $200 ea. total $14,600)
-1 3000 watt 12 volt inverter with 1 blown internal fuse
-1 1750 watt inverter
-20 Deka Ungly 45 ah deep cycle batteries (retail $3000)...