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I have a 12V car battery. I'd like to run a small wireless router type device on it for a couple of hours. The wireless router has "12V 1A max" written on it.

Will the car battery damage the router, or will it just draw the current it needs and work okay?

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Consumer electronics support is off-topic here. Your answer does already exist on Super User though here. – Kortuk♦ Jun 19 '12 at 22:11
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@Kortuk - This sounds like an EE question to me. – Rocketmagnet Jun 19 '12 at 22:19
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I am pretty sure the car battery will break the wireless router if dropped on it. – AndreKR Jun 19 '12 at 22:26
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VAST amount of EE stuff to be leartned here. It SHOULD be well answered already but if so a ref would be nice. This is an ongoing misunderstanding. – Russell McMahon Jun 20 '12 at 4:39
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@Kortuk - Yes, it's totally about understanding how loads draw current and how supplies supply it. This is one thing which a great many people misunderstand about electricity. It should be re-opened. I would like to answer it. – Rocketmagnet Jun 20 '12 at 8:41
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closed as off topic by Kortuk♦ Jun 19 '12 at 22:11

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