Parasitic draw draining battery overnight

A battery that's noticeably lower every morning even with everything 'off' points to a parasitic draw somewhere — something still pulling current when it shouldn't be. A clamp meter on the main battery cable with everything switched off will show you the total draw; then you pull fuses one at a time to isolate which circuit is the culprit. Propane detectors, some radios, and certain converters have a small constant draw by design, so a truly zero draw isn't always realistic — but anything over a couple hundred milliamps is worth chasing. What's your draw reading with everything off?