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Old October 5, 2015, 05:56 PM
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Default Laptop adapters: different amps matter?

I have a number of different laptops that were given to me but only a few adapters. I'm think I want to buy additional adapters w/match the specs for output voltage (19v not 18.5v), but does the amperage matter that much? Can amps be close or should it also match exactly.

Also, I see reviews where some cheap adapters crap out quickly, anyone know of quality brands for replacement adapters or what I should look for?

Thank you,

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Old October 5, 2015, 07:37 PM
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i believe different amp will under or over stress on battery and or the electronic parts ... i dont recommend that...

recommend (average) amp is more safe choice in my point of view...

anyway.. why not buy used adapter? (or similar numbers that you can check)
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Old October 5, 2015, 07:42 PM
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Voltage does matter, but amperage not (make sure check the polarity sign as well). The device will only draw the power needed on the power supply.

If a light bulb needs 12V , 1 Amp. You need a 12 V , 1 Amp power supply. Using a 12 V , 2 Amp power supply will be fine as the bulb only needs 1 Amp to draw. Using a 12V , 250 mA or 0.25A power supply and you will melt the wire and bad things will happen because the PSU cannot supply enough amperage to the bulb.
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Old October 5, 2015, 07:53 PM
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Sweenytodd is right. As long as the amperage is equal to or higher than your laptop is rated for, you will be fine.
Originally Posted by encorp
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