In terms of the temperature reached, the Energizer Lithium batteries again won the race, reaching 33.3°C closely followed by Duracell at 30.8°C and Panasonic at 29.6°C. Unfortunately, Powercell again fell at the first post only reaching a peak of 26.6°C.
However, Energizer Lithium took over an hour to reach their peak temperature, as opposed to a mere 6 minutes for Panasonic. To compare like for like, the temperature that Panasonic batteries reached at their peak (29.6°C) was reached by the Energizer Lithium batteries after only 8 minutes. The temperature that the Duracell batteries reached at their peak (30.8°C) after 30 minutes was reached by the Energizer Lithium batteries after only 12 minutes.