Our 2008 Prairie Schooner received an indirect (we think) lightning strike while we were camping (full hoook-ups). We saw extensive St. Elmo's Fire dancing across the ceiling and it killed our fireplace, computer monitor and stereo tuner - but we thought everything else was OK. It took a few hours for the camp's power to come back on and equalize but everything came back on and appeared functional at 3am (AC units, TV, fridge, all circuit breakers and fuses looked good, etc). Returned to camper around 5pm the next day and everything was dead; discovered battery looked fried (heavy corrosion that was not there before). Bought a new battery, cleaned terminals, installed and all seemed fine. We were happy. In the middle of the night we woke up to beeping and the new battery appears dead. So, why would a brand new battery drain so quickly? Why does the camper need the battery if we are using the electric hook-ups (or why would it pull enough to drain it so quickly)? Does this sound like a power source problem (electric hookups), power plug/cord, internal wiring, or something else? We are at a loss and appreciate any help or suggestions. There are very few people who repair RV's where we are and it's not an option to pack up and go home right now. We bought this used and love it, but don't know much about campers. Thanks in advance!