Road Trips, Remote Work, and Rugged Adventures—Stay Powered Anywhere With a Car Power Inverter
Whether you’re charging a laptop on the road, running an electric cooler while camping, or powering tools at a remote job site, a power inverter for your car makes it possible to run AC-powered devices from your vehicle’s DC battery. From quick errands to cross-country adventures, an automotive power inverter gives you the freedom and flexibility to stay powered wherever you go.
What to know before buying a power inverter for your car.
Not all inverters are created equal. Here are a few key features to consider when choosing the best power inverter for your car:
- 12V adapter / Cigarette lighter inverter
Smaller inverters for car cigarette lighters plug directly into your vehicle’s 12V outlet and are perfect for low-power devices like phones or tablets. Look for a 12V inverter that clearly indicates how much power it can handle through the cigarette lighter port—typically 450W or less. For higher-wattage needs, inverters that connect directly to the battery are better. - Compact size
Space matters in your vehicle. A compact automotive inverter will tuck away easily under a seat or in your center console while still delivering reliable performance. - USB ports
Most modern car inverters come with built-in USB ports to let you charge smartphones, tablets, or other USB-powered devices—no need for extra adapters. - Mobile / portability
If you plan to move the inverter between vehicles or use it outside the car, choose a lightweight model that’s easy to plug in to your car with both a 12V adapter and battery clamps. This is especially helpful for car camping or mobile office tasks. - Price and value
Don’t just go for the cheapest option. Compare features, build quality, warranty, and brand reputation. You want a 12 volt power inverter for your car that’s safe, durable, and backed by a company that stands behind its products.
What’s better, modified or pure sine wave car inverter?
The two main types of DC to AC inverters for cars are modified sine wave and pure sine wave.
- Modified sine wave inverters are more affordable and suitable for simple devices like phone chargers, toasters, coffeemakers or LED lights. Due to their simpler construction, these tend to be very compact and highly durable.
- Pure sine wave car inverters, on the other hand, deliver cleaner, more stable power—ideal for sensitive electronics like laptops, CPAP machines, or audio equipment. They more closely mimic the electricity from your home outlets and are considered the most versatile option for delivering reliable power to ALL of your electronic devices.
Why choose a Samlex power inverter?
Samlex has been a trusted leader in power conversion for over 30 years. Their automotive power inverters are known for exceptional build quality, safety, and performance.
All Samlex power inverters are backed by a minimum 2 year warranty and are tested under the harshest working conditions to ensure you always have mobile power when you need it.
Photo credit: Alfred Boivin
Best Car Power Inverters for Your Next Road Trip
If you’re hitting the road and want reliable power for your gear, here are some of the best Samlex power inverters for your car—from compact models that plug directly into your cigarette lighter for quick charges, to more robust pure sine wave options for sensitive electronics:
SAM Series – Compact Modified Sine Wave Inverters
Ideal for light-duty use through your vehicle’s cigarette lighter or battery clamp connection. UL certified with 2 year warranty.
SAM-100-12 | SAM-250-12 | SAM-450-12 |
A 100W modified sine wave inverter that's perfect for charging small devices like phones, tablets, or camera batteries. Plugs directly into the 12V cigarette lighter in your car, boat or RV. | With 250W of output, this inverter handles slightly larger loads such as small fans or LED lighting. Comes with 12V cigarette lighter adapter and battery clamps for easy connection. | A robust 450W inverter great for powering small appliances or multiple devices at once during road trips or camping. Comes with 12V cigarette lighter adapter and battery clamps for easy connection. |
1 AC outlet 1 USB port | 1 AC outlet 1 USB port | 2 x AC outlets 1 USB port |
PST Series – Pure Sine Wave Inverters for Sensitive Electronics
These pure sine wave car inverters offer clean, reliable power—ideal for laptops, CPAP machines, and audio/visual gear. UL certified, FCC compliant, 3 year warranty.
PST-120-12 | PST-150-12 | PST-300-12 |
Compact and powerful, this 120W inverter is great for running sensitive electronics with maximum safety. | A step up with 150W of clean AC power—ideal for mobile work setups or small medical devices. | With 300W of pure sine wave output, this model is a great all-rounder for more demanding road trip applications. Comes with detachable cable with 12V plug adapter or battery clamps for easy connection. Remote ON/OFF switch capability. |
1 AC outlet 1 USB port | 2 x AC outlets | 2 x GFCI protected outlets |
Whether you’re looking for a cigarette lighter inverter for casual use or a 12 volt power inverter for your car that delivers high-quality power, Samlex has a dependable solution for every road trip setup.
Not sure which car power inverter is right for you? Try our run-time calculator or speak with a Samlex expert today to find a power solution that meets your needs.
FAQs
Here are some frequently asked questions regarding car power inverters.
Can I plug a power inverter into my car’s cigarette lighter?
Yes—but only for low-wattage inverters, typically 450 watts or less. These cigarette lighter inverters are great for charging phones, tablets, and small electronics. For anything larger, like tools or appliances, it’s safer to connect the inverter directly to the car battery. Read the user manual of your car first and then connect an inverter that matches the needs of your car.
What size power inverter do I need for my car?
That depends on what you want to power. For charging phones and small devices, 100–150W is sufficient. For tools or small appliances, consider a 300–450W inverter. Always choose a model with slightly more capacity than your device requires to avoid overloads.
What’s the difference between modified sine wave and pure sine wave inverters?
Modified sine wave inverters are more affordable and work well with basic devices. Pure sine wave car inverters produce cleaner, more stable power and are better for sensitive electronics like laptops, CPAP machines, or audio equipment. They’re a more versatile long-term investment for road trip power needs.
Will a power inverter drain my car battery?
Yes, a power inverter can drain your car battery when the engine isn’t running. When using an inverter while the vehicle is off, it draws power directly from the battery, which can drain the battery if used for an extended time. To avoid this, limit the use of heavy loads when the vehicle is turned off. Samlex inverters also include low-voltage shutdown features to help protect your battery from draining below critical levels.
