Terminal Protection Spray
It is going on 4 years now that I added (2) 6 volt Trojan deep cycle batteries and SOLAR. When I installed the batteries I sprayed all their terminals/cables with BATTERY TERMINAL PROTECTION SPRAY (I used the red colored one by EPM from O'reilly Auto parts store). I sprayed the cable wire ends when I installed and crimped the lugs. I also use the spray on all outside wire connections (ground, SOLAR connectors...). I also used shrink wrap on all the connectors cable ends which adds a little more protection from the elements. This is what they look like now, going on 4 years later. They have also survived the Florida humidity of 80+% for 6 months each year. I clean the tops of the battery cases a few times a year with paper towels and a cleaning solution DW uses that she mixed up...works great..
So, you can look at the picture below and see that it probably does work, at least I think so.
Remove all your terminals/lugs, clean the terminals/lugs with a wire brush and or a battery terminal cleaning brush. Load the area with baking soda and water to do a final cleaning with an old tooth brush.. rinse them with water (make sure none of the water gets into the battery(s)) spray the terminals/lugs (protection spray), reinstall them (tighten them to specs) and spray them again (protection spray). You didn't kill the battery did you/
A picture is worth a thousand words, see below.
2013 Jayco Eagle 284BHS
250Watt Grape Solar Panel, MorningStar MPPT 60 Charge Controller
1500 Watt Ramsond PSI, 2 Trojan T145 Batteries (260Ah)
2 - AirSight Wireless IP Cameras (used as rear view cameras)
EnGenius WI-FI extender, D-Link wireless (n) modem
MagicJack Internet Phone
2012 Ford F150XLT, EcoBoost w/3.73
157" Wheel base, HD Towing Package
Our Solar Album http://www.jaycoowners.com/album.php?albumid=329