Why do we refer to phone battery capacity in mAh but EVs in kWh?

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Why do we refer to phone battery capacity in mAh but EVs in kWh?

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Anonymous 0 Comments

kWh is more useful if your device uses more current at lower voltage to make up the same power usage. mAh is more useful if your device uses the same current regardless of voltage, and is easier to measure. Modern phones do often use switching regulators, but many battery operated products just use linear regulators(or no regulators), and the extra voltage just gets wasted as heat. This isn’t necessarily less efficient either, as switching regulators have their own losses.

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