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Joined 1 year ago
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Cake day: October 27th, 2023

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  • mAh mean nothing outside phones, because they only convert to an energy unit if they are paired with a voltage. The reason why it’s valid with phones is that they all have the same voltage, so it’s always an apple to apple comparison. If you change device type, it doesn’t make sense anymore.

    For example, my Pixel 6 has a 4700 mAh battery at 3.75 V = 17.6 Wh. But if the voltage was, say, 9V, then it would be 42 Wh. Which is a battery twice the size.

    You can’t compare mAh across device types which don’t share the same voltage. Which is also why I hate it so much that it’s become the standard way to talk about batteries for phones.