Laptop AC adapters are an important component of any laptop. Without them, users will be left without power or the ability to recharge the battery. Since AC adapters are an external part, however, they can often take a lot of abuse, leading to failure. Here we will examine some of the most common failure points for laptop AC adapter. 

Without a doubt, the most vulnerable parts of a Laptop AC adapter is it’s cables. Most designs incorporate a thin cable connecting the laptop to the transformer, and then a thicker cable from the transformer to the wall outlet. The thin cable is often the most susceptible to damage. It can get bent sharply, wrapped too tightly, or even kinked or knotted, causing damage to the cables inside. When this happens, there will often be a short in the cable, causing intermittent problems. Some Gateway AC Adapters utilize a 90 degree curved adapter plug that minimizes the stress on the connection at the laptop and many aftermarket ac adapters include this feature. In some cases, wiggling the cable will cause the adapter to work again temporarily, but it is recommended that it be replaced to avoid any risk of electric shock.

Another common failure point for AC adapters is the connectors. There is often a connector between the AC cable and transformer, and another where the DC cable plugs into the laptop itself. This connector is often fairly small by necessity and prone to damage over time as the user continually plugs and unplugs the connector. In some cases, the internal connector of the laptop can also become damaged, so it is a good idea to determine which part is defective before replacement.

The transformer is contained within the large “brick” part of an AC adapter. It is less likely to be damaged than other components because it is designed to be rugged. Nevertheless, repeated dropping or other types of abuse can sometimes cause the adapter to malfunction, and it will need to be replaced.

When you have determined that your AC adapter needs replaced, you can visit an online retailer and search for your model to find a replacement part. You can also try doing a more general search, like Dell Laptop AC Adapter or one that pertains to your brand of laptop.