Electrical Help Needed...TriMetric / Xantrex / Coffee

I'm sure you could get the Keurig to work. But here's an alternative that works for me:
http://www.amazon.com/Clever-Coffee-Dripper-Large-Ounces/dp/B00EOM5RN0

I have 300W solar/300 AH batteries. Some days I would have enough extra power to brew a cup or two of coffee. Others I wouldn't. For me the above solution is quick, convenient, and easy to clean up. Fill coffee mug right to brim with water, pour into small saucepan, boil, and pour thru coffee dripper into the mug. Discard filter and grounds, rinse.