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 Message Boards » » Substituting Power Adapter [WRT54G2] Page [1]  
Grandmaster
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FWIW, I feel as though this didn't really warrant its thread, but I wasn't aware of any "Perpetual 5 minute Tech Answer" topic. Maybe there should be one? Anyway,

WRT54G2 Requirements:
12V DC .5A

DVE Adapter:
12V DC 1A

Polarity matches so the only thing different is the current. I'm pretty sure that I know the answer to this question since impatient Tech Bro Law dictates you must first put your electronics at risk of overload by testing the adapter before making sure it's not going to blow up in the future.

From what I've gathered in the past, more current is better than less current, but when I just did a hard reboot the fucker sparked a bit when I plugged it in. Thoughts?

9/8/2010 11:27:03 AM

FenderFreek
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It will work. The adapter doesn't "shove" electricity through the router, it simply allows up to 1A to be drawn.

9/8/2010 11:58:29 AM

evan
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Quote :
"It will work. The adapter doesn't "shove" electricity through the router, it simply allows up to 1A to be drawn."

picture a hose. think of current (the amperage you gave) as water and the voltage as water pressure. depending on the size of the nozzle at the end of the hose (resistance), a different amount of water comes out.

9/8/2010 5:49:57 PM

Grandmaster
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I guess in theory during a surge with a .5A adapter, it would fail before the router was exposed but with 1A it's more likely that the router would fail before the adapter? In practice, how often does electrical failure actually happen like that though?

9/8/2010 5:55:05 PM

evan
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if it's enough of a surge that the rectifier gets fried, you're screwed either way.

9/8/2010 6:07:30 PM

Prospero
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but the cost of an adapter is cheaper than a router.

also make sure the connection fits, i notice as the amperage changes, so does the connection, i presume this is to help prevent accidents.

9/8/2010 6:42:33 PM

Chief
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Quote :
"It will work. The adapter doesn't "shove" electricity through the router, it simply allows up to 1A to be drawn."


As for the sparking, it may have just been a poor or slightly odd fit for the substitute connector/power supply. I'd plug in the connector first into the router then the wall outlet plug.

9/8/2010 8:06:19 PM

Grandmaster
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Yeah after I saw the sparks, that's what I did.

9/8/2010 8:21:15 PM

 Message Boards » Tech Talk » Substituting Power Adapter [WRT54G2] Page [1]  
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