Data-led analysis of battery performance

Given the endless discussions about batteries, I decided to do a data-led
analysis of two different assessments: Tom's Hardware benchmarking exercise
from earlier this year and the recently implement EU regulatory
classifications.

See here for Tom's Hardware:
https://anonymous.4open.science/r/PhoneBattery-621D/analysis2025.html

See here for the EU data:
https://anonymous.4open.science/r/PhoneBattery-621D/EPRELanalysis.html

Both will need to be downloaded to be viewed properly and the analysis code
is also included as R Markdown files:
https://anonymous.4open.science/r/PhoneBattery-621D/

The take-homes are that there are some winners and losers, but the relative
differences aren't huge. It is quite clear that the Apple models are not
the worst.  Plus the results of the two datasets don't correlate. Not all
models appear in both so that may be the bigger issue.

Other points of note is that there are some clear errors in the EU data,
which was a surprise, plus Motorola markets *very* different models in
Europe vs the US.

I would like to do a thorough of all the EU data, but getting the data is a
pain in the arse, plus phone models are only identified by a model number -
not a name - which is actually surprisingly difficult to match from some of
the manufacturers' websites.

Have at it! :)