Battery Goes Flat Overnight but the Draw Keeps Changing? Catch the Wake-Sleep Timeline

Diagnose a changing overnight battery drain by preserving vehicle sleep, logging wake events, isolating branches and repeating the full parking cycle.

Diagnose a changing overnight battery drain by preserving vehicle sleep, logging wake events, isolating branches and repeating the full parking cycle.

Use the AUTOOL BT960 to measure key-off battery current after vehicle sleep, distinguish normal module shutdown from a stable parasitic draw, isolate one circuit at a time, and restore the battery connection safely.