My AC adapter died and I went to BestBuy to purchase a replacement. The Geeksquad suggested to choose a lower watt capacity instead of a higher watt capacity. I was convinced of the opposite and anyway, my Dell XRS13 adapter was 45w producing 19.5v at 2.31 A. The new Universal AC adapter is 65w producing (among various ranges) 19.5v at 3.33A. I simplistically figure that drawing 19.5 volts with higher amperage may heat-up the system or the laptop will only draw what it needs? A 90 watt adapter would have produced the same voltage at 4.6A Any chance it might damage my laptop by using higher amperage? I noticed a previous post:

  1. A power supply doesn't "push" power. It provides. Just because it can provide more, doesn't mean the connected devices actually uses it. It's simple, really: I = U / R. The only thing that does matter is the output voltage. – Daniel B Mar 14 '14 at 12:03
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    It seems you already found the answer. – Tetsujin Mar 20 '18 at 15:59
  • You can think of it as the voltage as pushing (as too high a voltage can overload a device) and current as being drawn. For the same nominal voltage, power is therefore drawn by the current used by the receiving device. – Mokubai Mar 20 '18 at 16:55

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