Inverter Voltcraft MSW 150-12 Car can-shaped 150W for vehicle cup holder

The Voltcraft MSW 150-12 Car can-shaped 150W inverter is a compact DC-to-AC power converter designed to fit most vehicle cup holders. It converts 12 V DC from a car battery into mains-style AC power, providing up to 150 W of continuous output for small appliances, chargers and electronic devices. The cylindrical form factor and integrated AC socket make it suitable for brief on-the-go use where a standard portable power outlet is needed.

Advantages

The inverter’s can-shaped design allows secure placement in most car cup holders, reducing movement while driving. It supplies a reliable AC outlet for devices that require up to 150 W, enabling use of small chargers, laptops with compatible power draw, and other low-power equipment. Built-in protections typically found in Voltcraft inverters—such as overload and short-circuit protection—help safeguard connected devices and the vehicle electrical system during normal operation.

Suitable for

• Charging laptops, tablets and phones via their standard chargers (if power draw stays within 150 W)
• Running small appliances like portable fans or mini-fridges with low power consumption
• Powering small AC devices during travel, roadside tasks or short stops
• Use in cars, vans or other 12 V vehicle environments where a cup holder is available

When it may not be suitable

This inverter is not intended for continuous heavy-duty use or to power high-wattage devices such as full-size kettles, hair dryers, power tools or large heaters. Devices that have high startup currents or sustained consumption above 150 W can trigger overload protection or damage the inverter. For prolonged use, professional portable power stations or inverters with higher continuous ratings are more suitable.

Key specifications

• Input voltage: 12 V DC (vehicle battery)
• Output power: up to 150 W continuous
• Output type: AC mains socket (single)
• Form factor: cylindrical, fits common vehicle cup holders
• Typical protections: overload and short-circuit protection
• Intended use: short-term/mobile power supply for low-power AC devices

How to use

Place the cylindrical inverter securely in the vehicle cup holder and connect its input cable to the vehicle 12 V outlet or accessory socket as instructed by the manufacturer. Plug the AC device into the inverter’s socket, verify the device’s power requirement does not exceed 150 W, and switch the inverter on. Monitor the inverter and connected device during use, and disconnect when the engine is off for extended periods to avoid depleting the vehicle battery.

What to consider before purchase

• Confirm the total power draw of intended devices does not exceed 150 W.
• Check physical fit: measure your vehicle cup holder dimensions if needed to ensure stable placement.
• Verify connector compatibility with your vehicle’s 12 V outlet and with the devices you plan to power.
• Consider duty cycle and intended duration of use—this inverter is designed for short-term/mobile applications.

Usage recommendations

For reliable operation, use the inverter only with devices whose continuous and startup power requirements are within the inverter rating, keep the vehicle engine running during extended use to avoid draining the battery, and store the inverter in a dry, ventilated place when not in use.