A power adapter converts the electricity from your wall outlet into the type of power your device needs. Most home outlets provide AC power, but many electronics require DC at a specific voltage and current.

• Converts AC to DC: Supplies stable DC for devices like routers, LED strips, or game consoles.
• Sets the right output: Common outputs include 5V, 9V, 12V, or variable levels.
• Protects the device: Many include safeguards against overcurrent or short circuits.

It’s a good idea to check your device’s label for its required voltage and current, and then match those on the adapter’s Output spec. Choosing the correct type can help improve performance and reduce the risk of damage.

They’re related, but not always the same thing:

• Power adapter: Supplies a steady voltage and current to power a device. It doesn’t manage a battery; it just provides power.
• Charger: Includes electronics that safely charge a battery, controlling how much power goes in and when to stop. Many chargers also act as adapters.

For devices without batteries (like some speakers, LED strips, or routers), a simple adapter is typically fine. For battery-powered gear (phones, laptops, handheld consoles), look for a charger that matches the device’s charging requirements or protocol (such as USB-C Power Delivery). Reviewing your device’s specs can help you choose the right type without over- or under-powering it.

Start by checking the info on your laptop’s underside or in the manual:

• Connector type: Many modern laptops use USB-C Power Delivery; others use a round barrel plug. Match what your laptop accepts.
• Wattage/voltage: Find the required watts (for example, 45W, 65W, 90W) and voltage. Choose a charger that meets or exceeds the wattage and matches the voltage.
• Safety notes: For barrel plugs, match tip size and polarity. For USB-C, look for PD support at your needed wattage.

On Walmart.com, compare the charger’s Output specs to your laptop’s requirements. If you’re unsure, reviewing the device documentation or contacting the manufacturer can help confirm compatibility before you buy.

Plug shapes and voltage vary by country, so the safest approach is to check your destination’s official guidelines before your trip. If you’re unsure, an all-in-one travel adapter can offer flexibility.

• All-in-one adapter: Covers multiple plug types for international outlets.
• Voltage: A plug adapter changes the plug shape, not the voltage. Confirm if your devices are dual-voltage (e.g., “100–240V”).
• Converter (if needed): If a device isn’t dual-voltage, consider a voltage converter.
• Extras: Features like a fuse, surge protection, and USB ports can be helpful.

Review your devices’ labels and pack accordingly. This can help reduce the chance of compatibility issues while abroad.

Often, yes—but a few checks help reduce risk:

• Match voltage: The adapter’s voltage should match the device exactly (e.g., 12V to 12V).
• Equal or higher current: The adapter’s current (amps) can be higher than the device’s requirement; the device draws only what it needs. Avoid going lower.
• Polarity and plug: For barrel connectors, match tip size and center polarity. For USB-C, devices typically negotiate appropriate power if the charger supports the needed profile.

Using a higher-current adapter with the correct voltage and connector can be a practical option, but it’s always wise to review your device’s documentation to confirm compatibility.