My friend and I are hitting the last half of YMSB winter tour and plan on taping the whole thing. Tofay, while thinking about the trip I realised we might have a problem. We plan on camping or sleeping in the car most nights in order to save money. So, most nights we won't have the ability to recharge batteries. I will be running Nak cm300>ua-5>D7. Any suggestions about the best possible battery solution to this situation. I plan on making the Naks active before the trip.