Friday, March 12, 2010

Can I use a replacement adapter for a laptop that puts out the same volts, but 1 more amp than the original?

The original Toshiba ac adapter puts out 15v and 4 amps. The after-market replacement puts out 15v and 5 amps. Is this a problem?
Can I use a replacement adapter for a laptop that puts out the same volts, but 1 more amp than the original?
Not recommended, as that one more amp could possibly overheat the battery, and that is REALLY not a good idea.
Can I use a replacement adapter for a laptop that puts out the same volts, but 1 more amp than the original?
Yes, if the adapter meets all the requirements, such as having the correct plug and draws less current than the adapter is rated to deliver.





The amperage specified, is a rating telling how well the power source stands up to a particular current flow rate. The higher the rating the more robust the power brick.





In a given circuit ( such as the laptop charging circuit) amperage is restricted by the resistance of the circuit and the voltage pushing the amperage, NOT the rating of the power source. I=E/R Ohms law. (See basic electricity 101)
Reply:with due regards to 'donkey' above me (ooops, above to above), the extra amp. should be beneficial, technically


no harm whatsoever





use a 50 amps one or 500 amps or 5000 amps


but DO NOT go below 4 amps


let me try loosely explain %26gt; your laptop just takes what it needs, NO more





now the issue here would be %26gt; not the amps, but the dc jack which delivers the 15 volts to the laptop


if it is specifically made or marked for toshiba, then i guess you should be safe


any loose connection in the dc jack to laptop socket connection might spell disaster





now i have told you, what to watchout for


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