Choose a replacement charger for your exact phone model and its supported charging method, then match the cable to both the phone and charger; a higher wattage figure alone does not ensure faster charging. Before buying, check who supplies the charger and whether its model appears in current product-safety alerts. If you need several ports, check the output available when your devices are connected together.
If you need a new plug or cable, the seller and product information matter as much as the charging claim. Which? reported electrical-shock risks among marketplace chargers it tested, while Electrical Safety First advises buying USB chargers from a reputable retailer.
If you want the wired charging speed your handset supports, start with its exact model. Apple and Samsung describe charging requirements that depend on the device, charger and cable rather than the plug’s wattage alone.
If a phone shares a charger with another device, check how the ports divide power. Google’s guidance for its Pixel Flex Dual Port charger shows that output can change according to the connected devices.
Identify your phone’s charging requirements before comparing plugs or cables. Then screen the seller and the specific product, and check shared output if you plan to charge more than one device.
| Concern | What to check | Who this matters to |
|---|---|---|
| Supplier and safety information | Look for an identifiable supplier and product documentation. Search the GOV.UK Product Safety Alerts, Reports and Recalls service for the model. | I need a replacement charger but do not want to rely on an unfamiliar listing when I cannot establish who supplies it. Around 36% of consumers put supplier traceability and safety information first. |
| Phone-specific charging | Check the exact handset’s official charging guidance, then match its required protocol and the charger’s stated output. | When a quick wired top-up matters, I want the charger to support my phone’s charging method rather than merely display a large wattage figure. For around 29% of consumers, phone-specific speed compatibility is the main concern. |
| Cable compatibility | Match the connectors at both ends and check any cable rating required for the phone’s charging mode; confirm whether a cable comes with the plug. | If I am replacing a cable, it needs to connect my phone and charger without limiting the charging mode I intend to use. Around 21% of consumers make cable compatibility their primary concern. |
| Charging several devices | Compare the required ports with the manufacturer’s single-port and simultaneous-output information. | I want one wall plug for my phone and another device, but need to know what each port supplies when both are in use. Multi-device convenience comes first for around 14% of consumers. |
Which? reported electrical-shock and fire or explosion risks among marketplace USB chargers it tested, including concerns about a charger presented as an Apple product. A product photo or claimed wattage cannot establish that the item offered is genuine.
Check the supplier’s identity, the product information and any current alert for the precise model before considering its charging specifications.
The phone’s supported charging method and limits affect the result. Apple and Samsung both specify device-dependent requirements for faster wired charging.
Find the charging guidance for your exact handset, then compare its requirements with the charger’s stated protocol and output.
A matching connector does not establish that a cable meets every charging requirement. Samsung specifies a 5A cable alongside a 45W adapter for its documented 45W configuration.
Check both connector ends and any cable requirement stated for your phone’s intended charging mode.
A multi-port charger can allocate power differently when several devices are connected. Google says its Pixel Flex Dual Port charger changes output according to device demand and prioritisation rules.
Read the output information for the exact combination of ports you intend to use.
A source of model-specific iPhone charging guidance and USB-C power adapters.
A reference for Galaxy charging modes that vary by handset.
A reference for Pixel charging and the Pixel Flex Dual Port charger.
A third-party brand with single-port and multi-port USB-C charger ranges.
A third-party brand with USB-C and multi-port charger models.
These choices include wall chargers for one or two devices and replacement cables for compatible phones. Match the plug and cable to your handset’s charging guidance, and check the seller and product information before buying.
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Consider this wall charger if you want two ports for a phone and another device, after checking the output available to each.
PowerPlus 32W model with a USB-C connection and UK plug.
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Consider this single-port charger if its stated charging method matches your phone; check whether you also need to obtain a cable.
PD30W GaN model with a USB-C connection.
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Consider this adapter when Apple’s guidance for your iPhone model calls for a suitable USB-C power adapter; select a cable for the phone’s connector.
20W USB-C power adapter. The cable is not included.
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Consider this replacement cable for a compatible Lightning-port phone used with a USB-C adapter; it does not replace the wall charger.
USB-C to Lightning connectors; 1m length.
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Consider this replacement cable when both the phone and adapter use USB-C; its cable rating does not mean the phone will charge at 100W.
USB-C to USB-C connectors; stated 100W rating and 1.2m length. A compatible wall adapter is needed.
Not necessarily: the phone must support the charger’s charging method and will not gain a faster mode merely because the plug has a higher rating. Check your exact phone’s official charging guidance and use a suitable cable; wattage alone also says nothing about the safety of an unfamiliar product.
Search the GOV.UK Product Safety Alerts, Reports and Recalls service for the charger’s brand and model before buying or continuing to use it. Check that any alert concerns the particular product you have, then follow the action stated in the alert.
Yes, when your phone’s charging mode specifies a connector or cable capability. Apple identifies different cable connections for USB-C and Lightning iPhones, while Samsung specifies a 5A cable for its documented 45W configuration; check the requirements for your exact phone and charger.
No. Treat a mark as one product-information check, not proof that a particular listing is genuine or safe; also identify the supplier, examine the product documentation and check current safety alerts for the model.