What are people using for battery protection with their Eggfinder. I forgot to unhook mine after the last launch and the LiPo I used went dead flat. Zero. Kaput. 1.0V and toes in the air. I tried a second run today to get a better handle on my time with another 350mA 2S cell and turned my back (had dinner) at the wrong moment and it went from 7.4V to sad trombone while I was away. That test puts my total time in the 4-5 hour range, though it takes close to an hour to get a GPS fix sometimes, so that's a drag on total time on battery since any cold boot seems to re-acquire from scratch. Anybody have an easy circuit to add? If not I'll look to replace these lipos with ones that have a built-in low voltage protection, though that seems exceedingly rare for small packs.