I've got the RF filter box so generally don't have any battery issues with the P38. It can sit for weeks or even months and starts no bother... Except Sunday!
Wife used it on Wednesday/Thursday, it's sat for a couple days, went to start it on Sunday and it managed about half an engine revolution, then nothing.
Grabbed a spare battery and jumped it and away it went. Drove 5mins to the park and it restarted fine after the park, and it's been fine since...
I want to give the battery a full charge, but are there any other common issues that can cause drain like this? Couldn't see anything obvious like lights left on.