Cobra POWER 500W Power Inverter is a compact and versatile automotive power solution designed to convert 12V DC battery power into 115V AC electricity. Featuring 500 watts of continuous output, two grounded AC outlets, and dedicated USB-A and USB-C fast charging ports, this inverter provides a convenient way to power compatible electronics and small appliances while traveling. Designed for cars, trucks, recreational vehicles, camping trips, and mobile work environments, the Cobra CPI500W combines efficient power conversion with practical safety features and flexible connection options. Its portable construction makes it a useful accessory for road trips, outdoor activities, emergency preparedness, and situations where conventional household electricity is unavailable.

Key Features and Benefits

• 500W Continuous Power Output: Delivers up to 500 watts of continuous AC power for compatible electronics, chargers, and small appliances.
• 1000W Peak Power Capacity: Supports temporary power surges up to 1000 watts for devices with compatible startup requirements.
• 12V to 115V Power Conversion: Converts electricity from a compatible 12V vehicle battery into 115V AC power.
• Dual Grounded AC Outlets: Includes two GFCI-protected AC outlets for connecting compatible electrical devices.
• USB-A Fast Charging: Dedicated USB-A port provides up to 15 watts of charging power for compatible devices.
• USB-C Fast Charging: Additional USB-C port supports convenient charging for smartphones, tablets, and other USB-powered electronics.
• Modified Sine Wave Technology: Provides efficient AC power conversion for devices compatible with modified sine wave output.
• Remote Controller Compatibility: Supports the optional Cobra CPIALCDG1 remote controller for convenient power management.
• Automatic Cooling Fan: Temperature-controlled fan operates when additional cooling is needed.
• Built-In Electrical Protection: Includes safeguards against overloads, short circuits, overheating, reverse polarity, and abnormal voltage conditions.
• Compact and Portable Design: Lightweight construction makes the inverter convenient for vehicle storage and mobile applications.
• Multiple Connection Options: Includes direct-to-battery power cables and a 12V vehicle accessory cable for different power requirements.

Reliable 500-Watt Power Conversion

The Cobra POWER 500W is designed to provide convenient AC electricity from a compatible 12V DC battery. With 500 watts of continuous output and up to 1000 watts of peak power, the inverter can operate various small electrical devices within its rated capacity. Suitable applications may include:

• Laptop power adapters
• Smartphone and tablet chargers
• Camera battery chargers
• Portable electronic accessories
• Small entertainment devices
• Compatible low-power appliances
• Mobile office equipment
• Camping and travel electronics

The total connected AC load must remain within the inverter’s rated output capacity. Devices with large startup surges or special power requirements may not be compatible, even when their normal operating wattage appears to be within the inverter’s limits.

Two Grounded AC Outlets

The Cobra CPI500W features two grounded 115V AC outlets, allowing compatible devices to receive power from a vehicle battery. Both outlets include Ground Fault Circuit Interrupter protection, commonly known as GFCI. This protection is designed to interrupt power when certain electrical fault conditions are detected. The dual-outlet arrangement provides convenient flexibility when charging multiple devices or operating small electrical accessories. The combined power consumption of connected devices must not exceed the inverter’s available output.

USB-A and USB-C Fast Charging

In addition to its AC outlets, the Cobra POWER 500W includes two dedicated USB charging ports. USB-A Fast Charge Port Provides charging output up to 15 watts through supported 5V and 9V charging profiles. USB-C Fast Charge Port Offers an additional charging connection for compatible USB-C devices, also supporting up to 15 watts. These ports provide convenient charging for smartphones, smaller tablets, wireless accessories, and other compatible USB-powered devices. Charging speed depends on the connected device, supported charging profiles, and cable quality.

Flexible Vehicle Power Connections

The Cobra POWER 500W supports two connection methods, allowing users to select the appropriate setup for their electrical requirements. 12V Vehicle Accessory Connection The included accessory power cable allows the inverter to connect through a compatible vehicle’s 12V accessory outlet. This provides a convenient option for lower-power applications. The maximum output through this connection is limited to 180 watts, subject to the vehicle outlet’s own electrical rating. Direct Battery Connection For higher-power applications, the inverter can be connected directly to a compatible 12V vehicle battery using the supplied cables. This connection method is required to access the inverter’s full rated output. Proper cable routing, overcurrent protection, and installation according to the manufacturer’s instructions are essential for safe operation.

Modified Sine Wave Technology

The Cobra CPI500W produces modified sine wave AC electricity. This technology provides an economical and practical way to power many compatible electronic devices from a 12V battery. However, modified sine wave output is not identical to the pure sine wave electricity typically supplied by household electrical systems. Some equipment may require pure sine wave power, including certain sensitive electronics, motor-driven appliances, audio equipment, and devices with specialized power supplies. Always verify the electrical requirements of connected equipment before use. For devices specifically requiring pure sine wave electricity, a compatible pure sine wave inverter should be used instead.

Compatible Remote Controller

The Cobra POWER 500W includes a dedicated connection for the optional Cobra CPIALCDG1 remote controller. This accessory allows convenient remote power control without needing to access the inverter directly. Remote operation can be particularly useful when the inverter is installed in a vehicle storage compartment or another location where its physical controls are difficult to reach. The remote controller is sold separately and is not included with the standard CPI500W inverter package.

Automatic Cooling and Thermal Protection

The Cobra POWER 500W uses a temperature-controlled cooling fan to help manage internal operating temperatures. Rather than running continuously, the fan activates when the inverter reaches a preset temperature and turns off when additional cooling is no longer required. This helps reduce unnecessary fan operation during lighter electrical loads. The inverter also includes automatic thermal protection designed to shut down operation if excessive internal temperatures are detected. For proper cooling, the device must be installed in a suitable, well-ventilated location with unobstructed airflow.

Advanced Electrical Safety Features

The Cobra CPI500W incorporates several protective functions designed to help maintain safe operation.

• Overload Protection: Helps prevent damage when connected equipment draws excessive power.
• Overtemperature Protection: Automatically interrupts operation if internal temperatures exceed safe limits.
• Short-Circuit Protection: Provides protection against certain electrical short-circuit conditions.
• Reverse Polarity Protection: Helps protect the inverter against incorrect battery connections.
• Low-Voltage Warning: Alerts users when the connected battery voltage becomes too low.
• Low-Voltage Shutdown: Automatically stops operation when battery voltage falls below the specified threshold.
• Overvoltage Protection: Helps prevent operation under excessive input voltage conditions.
• GFCI Protection: Provides ground fault protection for the AC outlets.

These safety systems complement proper installation and operation but do not eliminate the need to follow electrical safety precautions.

Ideal for Travel and Mobile Applications

The Cobra POWER 500W is designed for users who need portable electrical power while away from traditional household outlets. Common applications include:

• Road trips and long-distance travel
• Camping and outdoor recreation
• Recreational vehicles
• Mobile offices and work vehicles
• Photography and video equipment charging
• Laptop and smartphone charging
• Emergency preparedness
• Outdoor events and tailgating
• Vehicle-based electronic equipment

Its lightweight design and multiple charging connections make it practical for occasional travel and regular mobile use.

Compact and Durable Construction

The Cobra CPI500W features a compact housing designed for convenient vehicle installation and transportation. Its front panel provides easy access to the AC outlets, USB ports, remote controller connection, power switch, and operating indicators. The integrated cooling system helps regulate internal temperatures during operation. The lightweight construction makes it convenient to store inside a vehicle, equipment compartment, or travel accessories bag when not in use.

Product Specifications

• Brand: Cobra
• Model: POWER 500W
• Manufacturer Part Number: CPI500W
• Product Type: Automotive Power Inverter
• Input Voltage: 12V DC Nominal
• Input Voltage Range: 10–15V DC
• AC Output Voltage: 115V AC
• Output Frequency: 60Hz
• Continuous Power: 500 Watts
• Peak Power: 1000 Watts
• Output Waveform: Modified Sine Wave
• Efficiency Rating: Up to 90%
• AC Outlets: Two Grounded GFCI-Protected Outlets
• USB-A Output: 5V / 3A or 9V / 1.67A
• USB-C Output: 5V / 3A or 9V / 1.67A
• Maximum USB Charging Power: 15W Per Port
• Vehicle Accessory Cable Output Limit: 180 Watts Maximum
• Cooling System: Temperature-Controlled Fan
• Low Battery Alarm: Approximately 10.5V DC
• Low Battery Shutdown: Approximately 9.5V DC
• Remote Compatibility: Cobra CPIALCDG1
• Remote Controller Included: No
• Dimensions: 7.01 x 5.39 x 2.83 Inches
• Weight: Approximately 1.41 lbs
• Color: Silver and Black
• Warranty: Two-Year Limited Manufacturer Warranty

Included Accessories

The standard Cobra POWER 500W package includes:

• Cobra CPI500W Power Inverter
• Direct-to-battery power cables
• 12V vehicle accessory power cable
• Quick start guide

The optional Cobra CPIALCDG1 remote controller is available separately.

Important Power and Compatibility Information

To operate the inverter safely, always confirm that connected equipment is compatible with 115V AC, 60Hz modified sine wave output. The inverter’s full 500-watt capacity requires an appropriately installed direct battery connection. When using the included 12V accessory cable, output is limited to a maximum of 180 watts and may be further restricted by the vehicle’s accessory socket rating. The inverter is not designed for direct connection to 24V vehicle electrical systems. It should not be used with devices that require pure sine wave electricity or equipment exceeding its continuous or peak power ratings. The inverter also does not contain an internal battery. It must receive power from a compatible external 12V DC source.

Convenient Power for Everyday Travel

Cobra POWER 500W Power Inverter provides a practical way to operate compatible electrical devices while traveling, camping, or working from a vehicle. Its combination of dual grounded AC outlets, USB-A and USB-C charging, multiple connection options, and built-in electrical protection makes it versatile for a variety of portable power applications.

Reliable Automotive Power Solution

Cobra CPI500W combines 500 watts of continuous power, 1000 watts of peak capacity, modified sine wave conversion, and fast USB charging in one compact automotive inverter. With its durable construction, automatic cooling, safety features, and optional remote controller compatibility, the Cobra POWER 500W offers a convenient solution for powering compatible electronics and small appliances wherever a suitable 12V vehicle battery is available.