Hi everyone. My name is Sarah and I work for TST, and I also run the 507 cap sensors on my coach. Looks like everyone's got the right idea here. You should remove them if you're going to be stationary for a while, but you'll basically need to change the batteries once a year anyway. As for screws stripping or o rings breaking, no worries, just call the tst office and we'll send you a pack for free, just pay shipping. The number is 770-889-9102. It's great to see the support from our loyal customers. I will keep an eye out here and answer any other questions you may have. Happy travels everyone.