65W Vs. 90W Acer SADP-65KB AC Adapter

Author: papatek

Author: papatek

Laptop A watt is a unit of measurement. This particular unit measures power, or capacity to do work. Watt's law states that one watt (1W) is how much power is in an electrical circuit where one ampere (1A), or amp, of current flows across a difference of one volt (1V). AC adapters convert electricity in alternating current form from one voltage to another. If you are looking at two Acer SADP-65KB AC Adapters that both convert, say, 120V AC to 12V AC, it can be confusing to see different wattage ratings (such as 65W vs. 90W) for the Acer SADP-65KB AC Adapter.

An Acer AC Adapterwith a rating of 90 watts with an output of 12 volts AC will have a maximum electrical current output of 7.5 amps (12V x 7.5A = 90W). Therefore, an AC adapter with a higher power rating (measured in watts) will be able to supply more current to a device it's connected to.

While an Acer SADP-65KB AC Adapter with a higher power rating will allow for faster battery charging times and increased electrical loads, an Acer AC adapter with a lower power rating may suffice, especially where there is a concern about excess heat or higher cost.

Similarly, since the power rating is considered to be a "maximum allowable power" indication, an Acer SADP-65KB AC Adapter may be used to power devices that are rated at or below their power rating. If a device requires 12V and 3A (36W), either the 65W or 90W power supply may be used to power it.

Cost may also be a factor. Usually, since Acer SADP-65KB AC Adapter with a higher power rating must be capable of delivering more electrical current for the same amount of voltage, the components required to assemble an Acer AC adapter must be more robust than that of a lower-power-rated AC adapter. Acer SADP-65KB AC Adapter Features/Specifications : http://www.usadapter.com/Laptop-Acer-Adapter/Acer-SADP-65KB-AC-Adapter.html

Input: AC100-240V (worldwide use)

Output: DC19V 3.42A

Power: 65W Connecter size:

Internal Diameter: 1.5mm ultra slim

External Diameter: 5.5mm Attention! Please make sure the part will match your laptop before bidding. We do have 5.5*2.1mmB and 5.5*2.5mmB ac power adapter available(60W 19V=3.16A or 65W 19V=3.42A). Item Includes: AC Adapter and Power Cord. Brand New Replacement Product, works as genuine parts, 100% OEM Compatible!! Full 12 months warranty!! Acer SADP-65KB AC Adapter Warranty

12 months warranty See more information on:http://www.usadapter.comAbout the Author:

http://www.usadapter.com which locates in Santa Clara, is a direct sales office of AC Adapters. We currently supply brand new Power Supply & AC Adapters for almost all name brand laptops with wholesale price. We are committed to provide best adapters as we strictly follow the special quality control measures in the whole process. We have been supplied AC Adapters wholesale to many traders and distributors all over the world during these years.

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