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MobileSpec MSI175S

175-watt power inverter strip

Item # 177MSI175S

Just like home power strips, this MobileSpec power inverter for your vehicle delivers power to a wide range of devices.

Just like home power strips, this MobileSpec power inverter for your vehicle delivers power to a wide range of devices.

Need help?
Contact our Virginia-based experts.

Item # 177MSI175S

In stock
Need help?
Contact our Virginia-based experts.

About the MobileSpec MSI175S

A power strip for your vehicle

You probably have them in your home, but MobileSpec's MSI175S 175-watt power inverter strip lets you charge multiple types of devices right inside your vehicle. It includes two standard 3-prong AC outlets, a USB-A port, a USB-C port, and a 12-volt outlet to work with a wide variety of gear. Don't worry, overload, voltage, and temperature protection is built right in, so the inverter won't harm your gear. It'll also shut down when there isn't enough juice in your vehicle. 

Product highlights:

  • portable strip-style power inverter with 24" 12-volt adapter
  • 175 watts of continuous AC power
  • two 3-prong AC outlet, one USB 2.4-amp port, one USB-C 3-amp port, and one 12-volt power outlet
  • built-in high/low voltage, temperature, and overload protection
  • dimensions: 7.95"L x 2.64"W x 1.85"D
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # MSI175S

What's in the box:

  • Power inverter with attached 24" cable (12-volt power adapter)
  • Owner's Guide

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More details on the MobileSpec MSI175S

Russ B.

Product Research


Overview: The MobileSpec MSI175S is a strip-style power inverter for your vehicle for turning 12-volt DC power from the battery to 115-volt AC power. Plug the inverter into your vehicle's 12-volt power port (cigarette lighter) and you can connect one or two AC powered devices. In addition, you can power or charge USB powered devices with the supplied USB-A and USB-C ports, as well as another 12-volt DC device from the provided DC output socket. The inverter is just under 8" in length, 2-5/8" wide and 1-7/8" high, and weighs 9.44 ounces. It has an attached 24" cable.

Input: The MSI175S plugs into your vehicle's DC power port, and accepts an input of 11 to 15 Volts DC. For convenience, the input has a 24" power cord to reach the power port. When the inverter is properly connected to battery power, the LED indicator should glow.

AC Output: The two 3-prong Standard North American AC outlets are rated at 115V AC, 58-62Hz on its Modified Sine Wave (MSW), and provide up to 175 watts of continuous power and 350 watts surge power. It operates at 85% max efficiency. The inverter can be used to power many electronic devices and small appliances. Here are some typical appliances that can be powered by the MSI175S, and their wattage ratings:

  • Cellular Phone: 3 watts
  • Tablet: 15 watts
  • Glue Gun: 20 watts
  • 7" Portable DVD player: 48 watts
  • Laptop Computer: 60-100 watts
  • Video Game Console: 60-300 watts
  • Lamps (up to 70 watts): 75 watts

Note: You should check the wattage rating of your device before plugging it into the inverter to be sure you're not exceeding the capacity of the inverter.

Dual USB Outputs: The MobileSpec MSI175S offers two USB ports for charging your electronic devices. The USB-C port's output is rated at 3A (15 watts). The USB-A port has a 2.4A output for a total of 12 watts.

DC Output: A 12-volt DC power port is provided for powering or charging a 12-volt device, such as a dash camera.

Battery Operating Time: When the vehicle battery is the sole power source, the inverter could be a significant draw on the battery's power, depending on the charge level of the battery, its capacity, and the amount of power being drawn by the particular AC load. Typically, the battery has an operating time of 4 to 5 hours or more. It is strongly recommended that you start the vehicle every one or two hours to recharge the battery before its capacity drops too low. With no devices plugged in, the inverter has a no load draw of less than 0.5A, so its impact on the battery charge is negligible.

Safety Features: To protect the battery, the MSI175S will automatically shut off when the input power drops below 10.5V DC (+/-0.3V), or if the internal temperature of the device is too high. It has a built-in, user-changeable glass fuse of 20A to protect the inverter in case of an overload. The ideal operating temperature is 32°-104°F.

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