The macs battery is about 50 or so watt hours, your average $40 external battery... | Hacker News

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		falcolas on Nov 27, 2016 \| parent \| context \| favorite \| on: The new MacBook Pro is kind of great for hackers The macs battery is about 50 or so watt hours, your average $40 external battery is around 70. Disregarding inefficiencies of charging a battery from a battery, about one. Realistically, closer to two. To do your own math, it's mAh * voltage / 1000

santaclaus on Nov 27, 2016 [–]

> To do your own math, it's mAh * voltage / 1000

The 1 / 1000 is a millisecond? Otherwise the units work out to power and not potential energy?

detaro on Nov 27, 2016 | [–]

1000 mAh * 1 V / 1000 = 1 Ah * 1 V = 1 Wh

Wh is energy, dividing through time would be power.

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