OK, time to once again reveal my ignorance. We're hoping to get out of frozen Bend, OR mid- next week. Headed to Indio. Bend is cold and has been for the last few weeks. Temps can get into the single digits at night and stay freezing all day. I keep the motor home in a secure storage lot, outside and without the availability of power. I try to start it every 10 days or so. Today I decided to start getting ready for the trip south and planned to bring her home for a couple days. I usually start the genset first, then the diesel furnace/Aquahot, cycle some heated coolant through the block and then she fires right up. Not today. The genset won't turn over, which I presume means the chassis batteries are low. Linking the house set also did not work. So, there I sit in the cold clear air and snow. Since its Saturday and the day after Christmas, my RV mechanic is not working and none of the shops are open. Is it possible to jump the starters and if so, what does it take? Thanks.