Reply to post:

Why can't a mobile be more like a cordless kettle?

AndrueC Silver badge

What's the power transfer efficiency like? I vaguely recall seeing figures of 40%. If true that would more than double the amount of power needed to charge your phone.

Ideally, I would have taken the small charging plate in the car but the system needs 1700mAh

Ah, so prolly about 60% efficiency then.

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