How to Use a 24W Dual USB-A Charger with USB-C Devices

By Shop iPhone 17 Chargers, Screen Protectors & More | Belkin US | Published: 2026-10-28

Category: How-to Guides

Learn how to charge USB-C devices with a 24W dual USB-A charger. Get step-by-step instructions, cable tips, and what to expect from this budget-friendly option.

Quick answer

You can charge USB-C devices with a 24W dual USB-A charger by using a USB-A to USB-C cable and plugging it into one of the ports. It works best for phones and small tablets, but expect slower speeds than a dedicated USB-C charger.

Why USB-A to USB-C charging works but has limits

A 24W dual USB-A charger outputs power through its USB-A ports, so you need a cable with a USB-A connector on one end and USB-C on the other. This setup is common for older chargers and budget-friendly options like the Belkin Dual USB-A Wall Charger 24W.

The key limitation is speed. USB-A ports typically deliver standard charging profiles, often around 5V/2.4A per port, which is slower than USB-C Power Delivery (PD) that can provide higher voltages and wattages. For a phone that supports fast charging, you'll still get a full charge, just not at the fastest possible rate.

Another consideration is that the total 24W is shared between the two ports. If you charge two devices at once, each gets less power. This is fine for overnight charging or topping up, but not ideal for rapid top-ups when you're in a hurry.

How to charge a USB-C device with a 24W dual USB-A charger

Check your device's charging requirements: Confirm that your USB-C device can charge via USB-A. Most modern phones and tablets support this, but some laptops require USB-C PD and won't charge from a USB-A port. If your device is a laptop, this charger likely won't work—look for a USB-C PD charger instead.
Use a USB-A to USB-C cable that supports charging: Plug the USB-A end into one of the charger's ports and the USB-C end into your device. Ensure the cable is rated for power delivery—some cables are data-only and won't charge. A cable with a 56kΩ pull-up resistor is safest for USB-A to USB-C connections, preventing overcurrent.
Plug the charger into a wall outlet: Insert the charger into a wall socket. The LED (if present) may light up, but not all chargers have one. Your device should start charging immediately. If nothing happens, try a different cable or port—one port may be faulty or the cable may be bad.
Monitor charging speed and adjust expectations: Check your device's battery indicator after a few minutes. If it's charging slowly, that's normal for a USB-A charger. For faster speeds, consider a USB-C PD charger, but for overnight or desk charging, this is perfectly fine. If you need a quick top-up before heading out, you might want a higher-wattage USB-C charger.

Product facts

Dual USB-A Wall Charger 24W + USB-A to USB-C cable: This Belkin Dual USB-A Wall Charger delivers 24W of total output and includes a 1-meter USB-A to USB-C cable. The included cable means you can start charging a USB-C device right out of the box, and the 24W total is enough for two phones or a small tablet.
Dual USB-A Wall Charger 24W + USB-A to USB-C cable