QUPERR Milwaukee M18 USB battery adapter 22.5W

Turn your Milwaukee M18 18V Li-Ion battery into a practical USB power source with the QUPERR LED work light converter and dual USB phone charger. This adapter lets you charge everyday electronics on the go while keeping a work light function for jobs, vehicle checks, and outdoor tasks. 🛠️

If you already own Milwaukee M18 batteries, this is the kind of accessory that can reduce the need to carry separate chargers. Plug in the adapter, then use the PD/QC3.0 USB fast charging ports or the DC 12V 3A port for compatible devices. It is supplied as the adapter only, so you can pair it with your existing batteries. 🔋

The essentials

The QUPERR Power Source USB Battery Adapter is designed to sit between your Milwaukee M18 battery and your charging or lighting needs. It converts an 18V Li-Ion pack into a charging station, with two USB fast charging outputs plus a DC port for broader device compatibility. According to the manufacturer, it can deliver fast charging of up to 22.5 W for two electronic devices at the same time, which is handy when you want your phone and another device ready without extra kit. It also includes three light modes, so you can handle basic illumination during work or when you are away from mains power.

This adapter supports Milwaukee M18 Li-Ion batteries, making it a useful add-on if you already use the M18 system. Compatibility is listed for several Milwaukee battery model numbers, and you can check your specific battery reference against the list before ordering. Keep in mind that the battery itself is not included, so you will need your own M18 battery to use it. If you want a single accessory that covers both charging and lightweight illumination, this is built around that everyday workflow. 💡

Key features

You can use the adapter in charging mode by plugging in the USB or DC ports, then connecting your device cables. With two USB fast charging ports supporting PD and QC3.0, it is set up for rapid charging of devices such as mobile phones and tablets, as well as other compatible electronics. The DC 12V 3A port adds another option when your device or accessory is designed for DC input. According to the manufacturer, fast charging up to 22.5 W can be available for two devices at once, so you are not limited to one connection.

For lighting, the adapter includes three light modes. A long press turns the light on, and pressing the button again cycles between the three brightness settings, low light, normal light, and strong light. This makes it practical for different situations, whether you want subtle visibility on the workbench or brighter output outside. It can also be used as an emergency light for short, non-specialist scenarios where you need illumination quickly.

The design is focused on cordless use. The belt clip helps you attach the adapter to your belt for a more secure carry, which can be particularly useful when you are moving around the jobsite or outdoors. There is also an adapter hole at the back for rope reinforcement, which can help with securing it using suitable reinforcement. 🔧

Finally, safety protections are included as part of the converter design. The manufacturer states it offers short circuit protection, over current protection, undervoltage protection, and low power consumption. These features are intended to support safer charging behaviour during everyday use. One practical point to note is that you should remove the adapter from the battery when it is not in use to help prevent the adapter from draining the battery.

Tech specs

• Name: Power Source USB Battery Adapter for Milwaukee M18 18V Battery
• Type: LED work light converter with dual USB phone charger interface
• Port compatibility: PD/QC3.0 USB fast charging ports plus DC 12V 3A port
• Charging output: up to 22.5 W fast charging for two devices at the same time
• Light modes: three modes, low light, normal light, strong light
• Safety protection: short circuit protection, over current protection, undervoltage protection, low power consumption

What to know before you buy

It makes sense if you already use Milwaukee M18 Li-Ion batteries and want a compact way to power phones, tablets, or other compatible devices from your existing battery platform. It suits you if your typical routine includes cordless tasks where mains charging is inconvenient and you would also benefit from a basic light source. It is also a good match if you are looking for a belt-mountable converter rather than an additional stand-alone power bank.

It might not be a great match if you do not have an M18 battery already, because the adapter is supplied as the adapter only and the battery is not included. It may also be unsuitable if your devices require a specific input that is not covered by the listed USB fast charging modes or the DC 12V 3A port. Worth considering if you regularly work away from sockets and want one accessory that combines charging and illumination with the protections described by the manufacturer.