this post was submitted on 02 Apr 2025
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As stated by another user, Wh is not a good metric for batteries because it will change depending on the load (voltage and current).
mAh is a strange unit, but it is the amount of stored charge (as in Coulombs) which does not depend on the load, so it makes sense to rate the capacity by this metric.
Why not just use the stored charge multiplied by the average cell discharge voltage at max load for Watt-hours? This may even encourage them not to go overboard on max load ratings.
Sure it could be a bit higher than what the user gets after voltage conversion, but if they are not maxing it they may get better?
I'm no electrical engineer, so this question isn't actually rhetorical - I'm wondering if this would work.