I'm looking to monitor a two battery bank system. One bank for the house, and one for starting. I've been looking at the SmartGauge destibuted by Balmar, and another one by Victron. What I like about the SmartGauge is I don't have to calculate the aH my battery bank can currently hold. What I like about Victron monitors they tell me the draw on the battery and as well as how well my charging system is doing. What I don't like about SmartGauge is it doesn't tell my how much draw I'm currently using and how well my current charging is doing. What I don't like about the Victron monitors is I have to manually determine how much my aH are for my battery and need to re-sink the thing as the battery gets older. What I'd like is one that automatically can calculate the aH my batteries hold regardless of age, as well as provides me additional output like how much current is being drawn out of my batteries and how well my charging system is working, whether it is the alternator on the motor, solar panels, or wind generator. Is there a single meter that is easy to install correctly and does everything I need. Or do I need to buy the SmartGauge, and another monitor to show draw and charging of my batteries. What are others doing to monitor all there batteries without breaking the bank($)?