Compaq Notebook PCs - Testing and Using the Laptop AC Adapter

About the Laptop AC Adapter

1, Compaq Laptop AC Adapter

2, DC Connector

• Before ordering this replacement Compaq Presario 2821AP Laptop AC Adapter, You MUST check your laptop's input voltage and your original adapter's output voltage. Laptops with 18V-20V input voltage can use our adapter which has 19V output voltage; Laptops with 15V-17V input voltage can use our adapter which has 16V output voltage; Remember : never exceed +/-1V tolerance. Using wrong output voltage adatper will damage your laptop computer.


• You can calculate your original Compaq Presario 2821AP Laptop AC Adapter's output Wattage [W] by multiplying the Ouput Voltage [V] by output current [Amps] i.e 19V X 4.74A = 90 Watts. You can choose a replacement Laptop AC Adapter which has higher Amps than your original Laptop AC Adapter's, but you can not choose an Laptop AC Adapter which has lower Amps than your original Laptop AC Adapter's because it can not provide sufficient power to your Compaq Presario 2821AP laptop. Adapters with higher Amps will not damage your laptop computer. The adapter's output current (Amps) and output power (watts) are maximum load ratings. Computers only draw as many amperes or watts as they need.


• Different laptops have different connectors. You need the right tip for your laptop. This is very simply to find. Basically, Laptop AC Adapters comprise of 2 ends. One end is male power outlet. You use this end to plug into wall power outlet(or cigar lighter). The other end is called "TIP" which you will plug this tip into the "DC IN" in your laptop. Your laptop won't work on the wrong tip. You can only use the " matching Tips". Warning : DO NOT try to force wrong tip in your laptop


• Adapter to be kept in cooling well-ventilated place when work

1. Insert the output of the Compaq Presario 2821AP power cord plug into adapter input
2. Input power line access to public electricity
3. Please make the three prong plug fully plug in to the adapter
4. Insert adapter output interface into the notebook computer's power supply interface
5. Open the notebook computer to use

• Strict Aging Testing
• Over Voltage Testing
• Over Temperature Testing
• Safety Testing. Double chipset design, with high efficiency output voltage and low consumption

• Over Voltage Protection (1500V/AC). Short Circuit Protection. Over Temperature Protection
• Wide input Voltage range, could stable work under 90v-264v
• High Power exchange efficiency to control working temperature and stable working.
• Power Exchange Savings more than %88 (More power exchange savings means less power wasting and working more efficient)
• PCB & Cover is manufactured with Fireproofing materials.
• Low Ripple and Noise. High Quality Raw Materials. %100 OEM Compatible.
• 2 years warranty

We ship to all over the world.

All orders will be shipped from our USA, UK, Canada, Europe, and HONG KONG international stores. The shipping ways have many optional: USPS, UPS, Royal Mail, Global Priority Mail, DHL, FEDEX, HONG KONG Post and more. FedEx Overnight is accept, please feel free to Contact us Email :order@salesadapter.com

When can I receive my items?

• USA 5~10days
• Overnight(Only for USA order)
• CA 5~15 days
• UK 3~8 days ( Royalmail )
• Ireland and EU 5~15days
• AU 5~12 days
• Other Countries < 20 days.

We are not responsible for wrong or undeliverable address. Please make sure your shipping address is correct and deliverable. The address can be your home, your place of business, your travelling aim place, or another residence address and all of the packages can be tracked.

Note: If possible, be suer the delivery address is the same as the billing address!

We are sorry to tell you that local pickup is not available on our website.

The UPS/USPS will charge us US$10.00 for any refused packages with immediate effect. Therefore, please provide us with the correct postal address and name of the recipient. Otherwise, Customers would have to bear all the additional delivery and service charges, including that being imposed by the UPS.

Order Cancellation

If you need to cancel an order for any reason, Email to us for assistance. If your order has not shipped out we will be able to cancel it for you. If an order has already shipped we will accept a return under the terms of our Return Policy.

Postage Rates

Our postage rates include the expense of shipping, handling and high quality packaging, which are charged based on shipment weight, delivery destination and retail value of order. You can place your order easily, our shopping cart will display the shipping fee automaticly.

1. Our Quality: We believe that our customers should receive the highest quality Laptop AC Adapter at the lowest prices. We stand by and guarantee the quality of our Compaq Presario 2821AP Laptop AC Adapter.
   
   
2. Our Service: We have a dedicated team of customer service executives who are eager to help you save time and money by sharing their knowledge and expertise on battery and related products.
   
   
3. Your Satisfaction: Your absolute satisfaction is our top objective. We stand by the quality of our Compaq Presario 2821AP Power Supply and offer a 30-day money-back guarantee on all our products, no questions asked. Our products also carry a 12-month full repair or replacement warranty for any form of manufacturing defects.