Cabin System

Need help with a small system in a cabin. Generator power by night, none during the day. I've a Trends integrated, Wadia 170i with iPOD Classic and will find small efficient monitors. So I need a larger battery set-up which will run during the day and then charge the battery off generator power by evening.

Cabin sits in large trees, so solar is not such an option. Thanks in advance.
I use Audio Engine 5's in my Cottage and they work great .

David Berning Micro ZOTL 12 volt
with high eff. speakers
did you run away to cabin?
What's wrong with what you already have?