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Laptop Chargers and Batteries

AC adapters, USB-C chargers and replacement lithium-ion batteries matched to laptop models by wattage, voltage and part number. 27,790 products from $0.82 to $25,765.99. WAWEIS, iTekiro, Dr. Battery and more.

27,790 products from $0.82

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Wattage, voltage and plug tip: matching a charger to your laptop

Read the small print on your original charger and match three things: output voltage, wattage and plug type. Voltage and plug must be the same, such as 20 V with a slim rectangular tip. Wattage can be higher but not lower; a 90 W adapter is normally safe for a laptop that comes with 65 W, while a 65 W unit may not keep a 90 W laptop charging under load. USB-C chargers must support Power Delivery at your laptop's wattage, and only laptops with a USB-C charging port can use them.

Battery cells, watt-hours and the part number

A battery's cell count shows its size: 3, 4 and 6 cell packs differ in capacity and often in shape, so the number must match your model. Compare watt-hours rather than milliamp-hours, since milliamp-hours depend on voltage. The compatibility list should include your exact model or part number, because a battery that looks right may have a different connector. Internal batteries sit under the base cover, so check whether your laptop uses a removable pack or a built-in one before choosing.

Questions about Laptop Chargers and Batteries

Can I use a USB-C charger for a laptop with a round plug?
Not through the round jack. The plug types differ, and the laptop needs a USB-C charging port that supports Power Delivery to use one. If your laptop has only a barrel jack, you need a charger with the matching plug.
Why does the laptop say the adapter is not recognized?
Many laptops read a data signal from the charger to confirm its wattage. An adapter with the wrong rating or tip may be refused or limited, so the laptop charges slowly or runs at reduced speed. Match the original specification.
What does cell count mean on a battery?
Each cell holds a share of the capacity, so a 6 cell pack normally lasts longer than a 3 or 4 cell pack but may be larger. Compare watt-hours and check that the shape fits your model.