TillioBargain hunting · Charging
USB-C charger and power-bank deals: read the watts per port
A '120W' charger does not necessarily supply 120W to one laptop. A large power bank is not necessarily a fast laptop charger either. Start with your device's charging requirements, then read the output table for the ports you will use together.
By Tillio editorial · Sources checked
Total watts and one-port watts are different checks
Anker's specification for the 737 GaNPrime 120W charger, model A2148, lists 120W maximum total output but 100W maximum from either USB-C port alone. It also lists a 24W combined maximum for the USB-C2 and USB-A pairing. That example shows why the port combination matters as much as the number printed in the product name.
Check the exact charger model rather than assuming another Anker product uses the same distribution. List your intended arrangement: laptop on one port and phone on another, or only the laptop. Then compare the published output table with the charging specification for those devices. A bundle's extra sockets have little value if the combination you need cannot supply the power you expected.
Keep cable power and data capability separate
USB-IF's cable guidance requires certified USB-C-to-USB-C cables to carry a 60W or 240W power marking. Its programme also requires appropriate data-rate markings except for USB 2.0 cables. A high power rating is therefore a different attribute from fast data transfer. Read both when a cable must charge a laptop and connect a storage device.
For charging, confirm the required cable rating and compatibility using your charger and device instructions. For data or a display connection, confirm those capabilities explicitly. Do not add an expensive cable to a basket simply because its wattage is higher, and do not count a charging-only cable as a useful SSD or monitor accessory without checking.
Compare a power bank's capacity and output separately
Anker's UK range lists power banks with different capacities and maximum outputs, including multiple models around 20,000mAh. The capacity label does not establish the available charging power for your laptop. Check the exact bank's single-port output, input charging requirements, included cable and size before comparing prices.
If you already own a suitable wall charger, a power-bank bundle containing another charger may be unnecessary. If you need one, include it in the total. For travel, look up the current airline and regulator rules for your exact battery before departure; this buying guide does not certify a power bank for carriage.
Sources: Anker UK: Power bank range
Price the charging setup you need
Illustrative prices, not live offers: a charger is £32 delivered and the compatible cable you need is £8, making £40. A £38 delivered package containing the same charger and suitable cable saves £2. If the package includes an unsuitable cable, its apparent saving disappears. Save the full model code and required port arrangement with your target price; a cheaper charger with different output is an alternative, not an exact price match.
- Check single-port and simultaneous output.
- Confirm the required charging protocol and cable.
- Separate battery capacity from output power.
- Count only compatible extras you need.
Sources and method
Prepared with AI-assisted desk research and checked against the linked primary sources. Retailer terms can change; read the current terms for your exact order. Read our checking and editorial method.