This category covers laptop power adapters rated up to 50 W: manufacturer and compatible chargers for ultrabooks, office laptops and school machines. Our range includes over 800 models, with adapters from 2-POWER, DELL, LENOVO, ASUS and HP among the leading brands.
You will find 24, 33, 36, 40, 45 and 50 W models, mostly made for laptops.
How to choose a laptop power adapter
Output voltage. It must match the value printed on your old adapter or on the underside of the laptop. Our range includes 19.5 V, 20 V, 19 V and 12 V adapters, with just a few 5 V and 24 V models.
Wattage. The new adapter should be rated at least as high as the original. A weaker one charges slowly and under heavy load may not charge at all or may run hot. A stronger adapter with the same voltage and connector is fine, because the laptop draws only what it needs. In our range 45 W and 40 W models are the most common.
Connector. The diameter and inner design of round plugs differ between manufacturers, so an adapter that physically fits may still be wrong. Check your laptop model or the marking on the old adapter and compare the plug size with the product description.
Original or compatible. A manufacturer adapter guarantees the same plug and correct recognition by the laptop. A compatible adapter can make a good second charger for travel or the office, but its voltage, wattage and connector need checking just as carefully.
Input voltage. Many adapters in our range work on 100-240 V mains, so you can travel with them and only change the plug or use a travel adapter.
Brands we carry
- DELL: many Dell adapters with a round plug have an extra data pin that lets the laptop identify the adapter's wattage, and an unrecognised adapter may limit charging.
- LENOVO: ThinkPad laptops long used a flat rectangular connector, while newer models increasingly use USB-C.
- ASUS: many Zenbook and Vivobook models use a small-diameter round plug, so check its size before ordering.
- HP: many HP laptops have long used a 4.5 mm plug with a centre pin.
- ACER: known for its Aspire and Swift series, whose adapters often use a 3.0 mm plug.
- TOSHIBA: its laptop business was passed to Dynabook, so these adapters are mostly needed for older models.
Also in our range: 2-POWER, COREPARTS, QOLTEC, AKYGA and HP Enterprise.
Frequently asked questions
Can I use a 45 W adapter instead of a 40 W one?
Yes, as long as the voltage and connector match. A laptop draws only as much power as it needs, so a higher-rated adapter does no harm. What matters is that the wattage is not lower than that of the original.
What happens if the adapter has a lower wattage than the original?
It is better to choose the same or a higher wattage. A weaker adapter may charge very slowly, and during demanding tasks the battery may even drain. The adapter also runs at its limit and gets hotter.
How do I find out which adapter fits my laptop?
Look at the label on the old adapter or on the underside of the laptop. It states the output voltage (V), current (A) or power (W), and often a part number. If there is no label, search by the exact laptop model name.
Can one adapter be used with several laptops?
Yes, if their voltage, wattage and connector all match. Laptops from different manufacturers often use different plugs, and some, such as Dell, also check an identification pin. Compare all three details first.
