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Laptop Power Supplies buying guide

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Laptop Power Supplies Guide - An Introduction

Laptop power supplies are available in a variety of forms. AC, DC, Lithium polymer or universal power supplies are available to consumers. Laptop power supplies vary depending upon their source of power. An AC power supply delivers energy from an electrical outlet within the home or office. A DC power supply delivers energy or power from an electrical source such as a vehicle. Universal power supplies deliver energy from a Lithium polymer battery.

Consumers may possess various laptop power supplies for different situations. If the laptop will be primarily used within an office or home, an AC power supply would be an appropriate choice. Those individuals who travel frequently via vehicle may make use of the laptop car charger powered by a DC power supply. Consumers who travel to locations where power sources are few in number may prefer a universal laptop power supply.

Universal laptop power supplies are thin, light weight and cost little to manufacture. Most universal laptop chargers can provide up to 20 percent more energy than a typical lithium ion battery. Most stand-alone universal laptop power supplies are made of Lithium polymer. The new lithium polymer technology is more durable than its predecessor the lithium ion battery. Therefore, the chargers are less likely to explode when overcharged or overheated.

Universal laptop power supplies also charge several multi-media devices, such as PDAs, mobile phones, laptops, and iPods. These types of laptop power supplies come with interchangeable tips for laptops, iPods, and mobile phones.

Experts recommend selecting laptop power supplies that are lightweight, moisture resistant, heat resistant, shock resistant, and vibration resistant. Laptop power supplies should also protect the laptop computer from electrical surges. Most laptop power supplies are small enough to fit into a purse or laptop bag. Consumers desire lightweight power supplies to reduce back strain when transporting the laptop.

Tips to consider before buying Laptop Power Supplies

  • Determine the primary use for the energy source. Consumers may ascertain which laptop power supplies are necessary to suit their lifestyles. Some individuals need all three laptop power supplies. Other individuals may need only one source of power.
  • Select a laptop power supply to withstand the elements. Moisture resistant, heat resistant, shock resistant, and vibration resistant are all desirable features.
  • Select a laptop power source that can withstand low power, as well as power surges.
  • Experts recommend that laptop power supplies are lightweight to reduce strain on the back and shoulder when transporting the battery.
  • When selecting a universal laptop power supply, verify that your laptop adapter and mobile phone adapter is included within the interchangeable kit.

Types of Laptop Power Supplies

AC Laptop Power Supplies

AC laptop power supplies deliver power from an electrical source located within a home or in an office. Most AC laptop power supplies provide 19V to the laptop computer. These laptop power supplies are comparable in price to DC laptop power supplies, but less expensive than universal laptop power supplies.

DC Laptop Power Supplies

DC laptop power supplies deliver power from an electrical source located in a vehicle. These laptop power supplies utilise the energy from the vehicle to deliver a typical 19V to the laptop computer. DC laptop power supplies allow consumers to remain mobile and powered while travelling in a vehicle. Youths may watch DVDs on the computer while on long vacation trips.

Universal Power Supplies

Universal laptop power supplies deliver power from a Lithium polymer battery supply. This type of portable battery is thin, lightweight, and delivers 20 percent more power than a typical lithium ion battery. Universal power supplies are equipped with interchangeable tips to accommodate various multi-media devices and laptop computers.

Brands of Laptop Power Supplies

Acer

Acer laptop power supplies deliver 19V and 3.42A to Acer laptop computers. The cord can reach electrical outlets up to 8 ft. away. The Acer laptop power supply is compatible with most Acer Aspire and Acer TravelMate models. Acer manufactures AC and DC laptop power supplies. Acer accepts most universal power supplies. Prices begin at £6 and progress upward from this price point.

Apple

Apple laptop power supplies come with a 6 ft. cord to reach electrical outlets. The power supplies generally weigh 1 pound per each type of power source. Apple offers consumers a combination package that includes both the Lithium polymer battery and the AC laptop power supply. Consumers can buy this combination package for £40. This is cheap for both power supplies.

Benq

AC and DC Benq laptop power supplies are available to consumers for relatively cheap in the UK. Benq Joybooks are compatible with several universal laptop power supplies. Prices range from £6 to £30 in online UK stores.

Dell

Dell offers AC, DC, and universal type laptop power supplies. The laptop power supplies can deliver up to 20V and 6A. The maximum power delivered is 85 Watts. These power supplies have power surge protection, as well as protection from moisture and humidity. Prices begin at £45.

MSI

MSI laptop power supplies deliver 20V of DC power to the laptop at 2A. The cord allows individuals to reach electrical outlets up to 4.5 ft. These laptop power supplies possess a red indicator light to reveal the amount of power usage. MSI is also compatible with universal laptop power supplies. The prices begin at £17 in online UK stores.

Novatech

Novatech offers power supplies for consumers as low as £15. Novatech manufactures all types of laptop computer supplies, including laptop power supplies. Most of the laptop power supplies accompany the laptop computers. However, other Novatech brands offer compatible laptop power supplies to consumers.

Philips

Philips laptop power supply delivers 19V at 4.7A. The device is light weight and weighs less than 700 grams. The laptop power supplies are available in both alternating and direct current. The device also is compatible with universal laptop power supplies. Prices begin at £21.

Qubz

Qubz laptop power supplies deliver power from 15V to 19V. The laptop power supplies come in AC, DC, and universal. The device is light weight. Consumers can buy a Qubz laptop power supply in online UK stores for £16.

Samsung

Samsung laptop power supplies are rated at 19V and 60 Watts. These laptop power supplies are available in AC, DC, and universal types. Most are protected from moisture, humidity, power surge, overheating and low input voltage. Consumers can buy laptop power supplies from online UK stores for £30 or more.

Skytronic

Skytronic offers consumers universal laptop power supplies that deliver 15-24V. The maximum current is 120 Watts. Prices begin at £13.

Sony

Sony laptops are compatible with universal laptop power supplies. These power supplies deliver between 15 and 20V to laptop computers at 4.5A. The power output is 70 Watts. Most come with 9 interchangeable tips to fit any laptop. An LED indicator on the laptop power supply indicates the power usage. AC and DC laptop power supplies are also available. Prices begin at £13.

Toshiba

Toshiba offers consumers AC and DC laptop power supplies that deliver 19V and 90 Watts. The power cord is 6 ft. in length. This laptop power supply has a power surge protector. Universal laptop power supplies are also available. Prices begin at £16.

Advice for Purchasing Laptop Power Supplies

Consumers should determine where they will use their laptop power supplies. This will enable consumers to determine the number and type of laptop power supplies necessary. Most individuals typically need more than one. The AC laptop power supply generally accompanies the laptop during purchase. Most individuals either work in a business or residence. Therefore, this type of laptop power supply is the most popular. Individuals who travel will either purchase a universal laptop power supply or a laptop car charger.

Verify that the laptop charger is moisture proof, humidity proof and will withstand power surges. The device should also be compact and light weight to fit snugly in a laptop bag. Individuals should verify that the laptop charger is compatible with the laptop and other devices if universal. Laptop power supplies with long cords are desirable to maximize the area where the laptop can be used while charging.

Most consumers will select laptop chargers that are made from the same manufacturer as the laptop computer. When selecting a universal laptop charger, check the ratings to make certain the chargers supply enough power and current to accommodate the laptop computer. The selection process should be fairly simple.

Jargon Explained

Alternating Current (AC)This type of energy flows in both directions and changes direction during the energy flow process. Alternating current is found in offices and homes. The movement of energy is similar to a sine wave.
Direct Current (DC)Direct current describes the flow of energy from an outlet to the laptop in particular direction.
Lithium Polymer Lithium ion batteries typically accompany a laptop computer purchase. Lithium polymer batteries charge Lithium ion batteries. Lithium polymer can typically provide 20 percent more energy than a Lithium ion battery. Lithium polymer batteries are safer than Lithium ion because they are less likely to suffer damage and explode. Lithium ion batteries can only withstand 500 charge cycles. Lithium polymer batteries can withstand 10,000 charge cycles. Manufacturer’s can offer cheaper prices for the Lithium polymer battery because they are less expensive to manufacture. Lithium polymer batteries are preferred by consumers because they weigh less. 

Buying Guide to Laptop Power Supplies
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