90W Compaq Presario 300 Laptop AC Power Adapter

Take Care of the Cord
Proper use and care of the laptop charger prolongs its lifespan so that replacements and repairs are not necessary. According to PCWorld.com, an online magazine for computer-related concerns, one of the most common problems with laptop use is that the charger's cord becomes frayed. Since laptops are conveniently brought just about anywhere, the constant plugging and unplugging wears out the cord. Mishandling it, such as leaving it twisted or tugging and jiggling it from the base unit can produce the same result. This is also true for folding or rolling the cord incorrectly. Other than being careful with the cord, wear and tear should be brought to the attention of a capable repair center.

Store the Charger Properly
As with laptops, which are typically placed inside laptop bags or padded envelopes, cords should be stored properly when not in use. The COMPAQ Presario 300 charger must never be exposed to extreme temperatures, such as those on a car's dashboard in the middle of summer or dead of winter. It must not become wet or be exposed to corrosive chemicals, as these elements can severely damage the charger. Keep in mind that avoids placing the charger near heat-sensitive materials. When not in use, laptop chargers should be kept in the same bag as the laptop. If there isn't enough space, putting the charger in a convenient cloth pouch or a small box is also an option.

Keep a Backup Charger
When traveling with your laptop frequently, it's a good idea to get a second charger adapter to avoid wear and tear. Having a back-up charger may also save you the headache of buying one in an unfamiliar place should your first charger adapter become damaged.