The phone battery-temperature record

Exhibits & visuals

Video frame

The January 29 battery-temperature table shown during Ian Whiffin's April 28, 2025 testimony. It lists 72 F at 12:37 a.m., 50 F at 1:36 a.m., 43 F at 6:06 a.m. and a low of 37 F at 6:14 a.m., followed by higher readings. No readings are shown between 1:36 and 6:06 a.m.; we cannot fill that gap with a continuous cooling claim. These are internal battery readings, not air or body temperatures, and do not independently establish where the phone was. The blue highlight belongs to the presentation.

Ian Whiffin courtroom presentation / Law&Crime Trials broadcast
April 28, 2025 testimony; video 2:14:06, January 29 battery-temperature table.

Changes: Full displayed broadcast frame captured at 2:14:06 with optional subtitles off. Source framing, watermark and highlight retained. Embedded metadata removed; no retouching, sharpening, generated text or added annotations.

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Whiffin described the battery cooling from about 72 F at 12:37 a.m. to 37 F at 6:14 a.m.

2022-01-29 / 12:37 a.m. to 6:14 a.m. / Device-sensor timestamps

What the record shows

The temperatures came from the device battery. Cross-examination addressed the more rapid cooling observed in Whiffin's separate freezer experiment.

Key facts

Reported first reading: 72 F at 12:37 a.m.
Reported later reading: 37 F at 6:14 a.m.

Limits and disputed context

Battery temperature is not a direct reading of ambient air or body temperature. These readings do not independently establish the phone's exact location.