This category covers external power supplies: laptop chargers, power adapters for networking equipment and power units for mobile terminals and scanners. It suits anyone replacing a lost or faulty adapter, or buying a spare for the office or travel. Our range has over 200 models, including chargers from DELL, ACER, HP Inc., ASUS and Microsoft, plus power supplies for Zebra, Honeywell, MikroTik and Teltonika equipment.
How to choose an external power supply
Compatibility with your device. Start with the exact model of your laptop or equipment and the label on the old adapter. Chargers for different series from the same maker often differ, so search by model name or adapter part number.
Wattage (W). The new supply must deliver at least as much power as the original. A 65 W adapter will not run a gaming laptop that needs 180 W, while a higher-wattage supply with the same voltage normally works fine, because the device only draws what it needs.
Voltage and connector. The voltage (V) must match the original adapter exactly, and the plug diameter and pin layout must fit the socket. Many Dell and HP laptops use an extra contact that lets the computer identify the adapter. Without it you may see a warning or slower charging.
USB-C or barrel connector. A laptop that charges over USB-C needs a supply with USB Power Delivery and enough wattage for that model. Such an adapter often charges a phone or tablet too. Many Microsoft Surface models have their own magnetic Surface Connect port, so they need the matching supply.
Original or compatible. An original supply meets the manufacturer's specification. A compatible one can work well as a spare, provided it states the same voltage, at least the same wattage and the right connector.
Brands we carry
- DELL: laptop chargers with a barrel connector and an extra identification pin, and USB-C versions for newer models.
- HP Inc.: original chargers for HP laptops, many older models of which use a 4.5 mm barrel plug with an identification pin.
- ACER and ASUS: chargers for their own laptops, and ASUS gaming models often need higher-wattage adapters than ordinary office machines.
- Microsoft: power supplies for Surface devices, some of which connect through the magnetic Surface Connect port.
- Zebra and Honeywell: makers of barcode scanners, mobile computers and label printers, so their power supplies are intended for those devices and their charging cradles.
- MikroTik and Teltonika: networking equipment makers, with power supplies intended for routers and other network and industrial equipment.
- HP Enterprise: a maker of servers and network hardware, so its supplies are meant for that equipment rather than home laptops.
Also in our range: MITSU, DEHNER.
Frequently asked questions about external power supplies
Will a charger from another manufacturer work with my laptop?
It can, if the voltage and connector match and the wattage is at least that of the original adapter. Some computers, such as Dell and HP models, check an identification pin and may charge slowly or show a warning with an unrecognised adapter. Check the figures on the label of your old adapter.
How many watts should a laptop charger have?
The wattage must be at least what the original adapter states. You can work it out by multiplying voltage (V) by current (A): 19.5 V at 3.34 A gives about 65 W. A higher-wattage supply with the same voltage normally works, whereas a weaker one may not keep up with the laptop under load.
Can I charge a laptop over USB-C?
Yes, if the laptop's USB-C port supports charging through USB Power Delivery. The charger's wattage must match what the laptop needs: a light laptop may be fine with around 45 W or 65 W, while more demanding models need more. If the port has no charging symbol, check the laptop's specification.
How do I find out which power supply fits my device?
Find the exact model on the label under the laptop or in the system settings, then compare it with the product description. Checking the label on the old adapter is even more reliable, as it lists voltage, current and wattage. These figures and the connector type must match the new supply.
