The week long cabin kit adds another solar panel and a larger inverter for twice the power of the weekender. It will generate enough day to day power for lights, some TV / DVD, microwave / coffee pot use, a small hairdryer, and small hand tools.
This is a good system for those wanting to spend more time at their cabin than just a couple days. It's good for longer stays and will provide more comfort than a single panel system. Like all of our systems, it is always expandable. Meaning that you can add another panel to it for more power at any time.
A good battery bank for this kit would be 4-6 x 6 volt golf cart batteries or 4-6 12 volt deep cycle batteries.
The main differences between these kits and the E-Power kits is that the E-Power kits have heavy duty inverter with built in chargers for supplemental generator charging and also include the batteries. These weekender kits are here to provide a lower cost entry-level alternative to the E-Power kits.