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this post was submitted on 10 Sep 2024
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mAh is a stupid way to measure batteries. Wh is more relevant.
It also tells nothing about the efficiency of the device. You can add a 50kWh battery to a device but it doesn’t matter if it uses 2kWh at idle
I guess it comes down to whether we want to primarily communicate battery size in terms of charge (Coulombs = Amps * Time) or energy (Joules = Watts * Time).
The first metric you multiply by your operating voltage to get the second metric, whereas the second metric you have to divide by your voltage to get the first. Depends on what comes easier to most people.
With the increasing abundance of electric vehicles people are getting used to (k)Wh as the unit for battery size. It would make sense to use the same unit for smaller electronics as well, IMO.