GOOD MORNING BILL!!!!!YEP,you are correct ,and there are a LOT of great battery powered[a-3's,2d's,etc]and as back-up I have several headlamps[mostly for walking -outside the campfire lite].I am working ,toward ,extendedcoastal kayaking &long camping trips[back in my youth,I ran a200 trap, line in an OLD coleman canoe]seems like 100yrs ago now!!!!anyway I have been experimenting with solar,for several yrs now,and have found that ;for the space&weight,it FAR exceeds -just batteries.THAT means I can carry more "creature comforts-NO not the "big-screen",but other items I deem vital !!!!!THE 16'kayak that is my "prototype"has enough cockpit space to be comfy for me[5'9"-170lb frame",and both a LARGE front&rear hatchs,for easy loading.while I am NOT "high-tec" I like to try NEW things,in life,as well as kayaking ,or boating in general.this is just 1 more attempt,to satisfy my curiouity.I hope this kinda answers your,question-and upholds your BATTERY thoughts!!!!later gumby/zenkayaker