My recent project to replace the "dumb" charger/inverter with a "smart" unit has gotten more expensive. It's the "one thing leads to another" syndrome. After pulling all the cables off my house batteries, I got a chance to test the 2 individual "no-name" flooded 8Ds that came with my coach. These were installed by the PO in Sept, 2010. One showed 4 volts, the other...