RV power inverter installed in an electrical compartment with batteries, red and black cables, power distribution equipment, and a scenic lakeside campsite at sunset.

AUTOMOTIVE & RV POWER SOLUTIONS

RV Power Inverters & Electrical Power Solutions

Explore automotive and RV power inverters for campers, motorhomes and vehicle electrical systems. Compare pure sine wave inverters, DC input voltage, continuous wattage, AC output and compatible accessories to find the right power solution for your setup.

Automotive & RV Power Inverters

Explore automotive and RV power inverters at Mariners Warehouse, with solutions for motorhomes, campers and vehicle electrical systems. Shop power inverters from leading brands, including Mastervolt, Newmar Power, Samlex America and Xantrex. Compare pure sine wave inverter options, battery input voltage, continuous power ratings, surge capacity and AC output specifications to find equipment suited to your electrical requirements.

Whether you're upgrading an RV power system, replacing an existing inverter or looking for compatible controls and communication accessories, review each product's specifications and manufacturer compatibility information before ordering. From standalone power inverters to inverter/charger solutions, Mariners Warehouse helps you explore electrical equipment for your automotive and recreational vehicle power needs.

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  • Mastervolt AC Master 24V/2000W Inverter - 120VMastervolt AC Master 24V/2000W Inverter - 120V
    Out Of Stock

    Mastervolt AC Master 24V/2000W Inverter - 120V MPN - 28522000 SKU: 70417
    MPN: 28522000

    $1,113.99
    $1,225.39
    $1,113.99
    AC Master 24V/2000W Inverter - 120VMastervolt sine wave inverters have proven themselves under the most extreme conditions for over 25 years. Our inverter family consists of AC Master, Mass Sine and Mass Sine Ultra models, ranging from 300 watt up to 40 kW. The...
    $1,113.99
    $1,225.39
    $1,113.99
    Out Of Stock
  • Mastervolt AC Master 24/700 Inverter, 24v Input 120v 700 Watt Output

    Mastervolt AC Master 24/700 Inverter, 24V Input 120V 700 Watt Output MPN - 28520700 SKU: MAS28520700
    MPN: 28520700

    $481.99
    $481.99
    Mastervolt AC Master 24/700 (120 V) InverterModel: 28520700 Pure sine wave technology protects sensitive equipment. Delivers full output at high peak power under the most demanding conditions. Automatic power saving system for extended runtime. Compact and lightweight design, saving valuable installation time. Reliable and...
    $481.99
    $481.99
  • Mastervolt AC Master 24/2000 Inverter, 24v Input 120v 2000 Watt Output

    Mastervolt AC Master 24/2000 Inverter, 24V Input 120V 2000 Watt Output MPN - 28522000 SKU: MAS28522000
    MPN: 28522000

    $1,113.99
    $1,113.99
    Mastervolt AC Master 24/2000 V) InverterModel: 28522000 Pure sine wave technology protects sensitive equipment. Delivers full output at high peak power under the most demanding conditions. Automatic power saving system for extended runtime. Compact and lightweight design, saving valuable installation time. Reliable and safe...
    $1,113.99
    $1,113.99
  • Samlex 3000 Watt Pure Sine Wave Inverter

    Samlex 3000 Watt Pure Sine Wave Inverter MPN - NTX-3000S-12 SKU: 104640
    MPN: NTX-3000S-12

    $1,072.00
    $1,179.20
    $1,072.00
    The Samlex NTX-3000S-12 is a 3000-watt pure sine wave inverter in Samlex's NTX series. It converts 12-volt DC battery power to 115 V AC for RVs, work trucks, boats and off-grid systems. Samlex rates it at 3000 watts continuous with a 6000-watt surge, and...
    $1,072.00
    $1,179.20
    $1,072.00
  • Xantrex FREEDOM X Combox NMEA2K Communication Device f/Boats

    Xantrex FREEDOM X Combox NMEA2K Communication Device for Boats MPN - 808-0822-01 SKU: 104368
    MPN: 808-0822-01

    $155.77
    $171.35
    $155.77
    The Xantrex Freedom X Combox, MPN 808-0822-01, is the Marine version of Xantrex's communication gateway for the Freedom X and Freedom XC families. It connects a compatible inverter or inverter/charger to a NMEA 2000 network. Third-party monitoring and control systems on boats and yachts...
    $155.77
    $171.35
    $155.77
  • Xantrex FREEDOM X Combox RV-C Communication Device f/RVs Caravan
    Out Of Stock

    Xantrex FREEDOM X Combox RV-C Communication Device for RVs Caravan MPN - 808-0822 SKU: 104367
    MPN: 808-0822

    $155.77
    $171.35
    $155.77
    The Xantrex Freedom X Combox, MPN 808-0822, is the RV/Caravan version of Xantrex's communication gateway for the Freedom X and Freedom XC families. It connects a compatible inverter or inverter/charger to a RV-C network. Third-party monitoring and control systems on RVs, motorhomes and caravans...
    $155.77
    $171.35
    $155.77
    Out Of Stock
  • Xantrex FREEDOM X 1200 PRO Inverter Truesine 1000W 120AC/12VDC Hardwire Transfer

    Xantrex FREEDOM X 1200 PRO Inverter Truesine 1000W 120AC/12VDC Hardwire Transfer MPN - 806-1212-05 SKU: 104365
    MPN: 806-1212-05

    $553.63
    $608.99
    $553.63
    The Xantrex Freedom X 1200 PRO, MPN 806-1212-05, is a 12-volt true sine wave inverter for RVs, heavy-duty trucks and work trucks. Xantrex rates it at 1200 watts continuous and 2400 watts surge. Output is adjustable from 110 to 125 V AC at 60...
    $553.63
    $608.99
    $553.63
  • Newmar Power-Pac 7AH Power Supply

    Newmar Power-Pac 7AH Power Supply MPN - POWER-PAC7AH SKU: 102325
    MPN: POWER-PAC7AH

    $1,077.00
    $1,184.70
    $1,077.00
    The Newmar Power-Pac 7AH is a true uninterruptible DC power source for 12-volt radios and critical navigation equipment on commercial vessels, work boats and yachts. Running from 115 or 230 V AC (selected by a rear-panel slide switch, 50–60 Hz, with a standard 6-foot...
    $1,077.00
    $1,184.70
    $1,077.00
  • Newmar Power-Pac 14AH Power Supply

    Newmar Power-Pac 14AH Power Supply MPN - POWER-PAC14AH SKU: 102324
    MPN: POWER-PAC14AH

    $1,283.00
    $1,411.30
    $1,283.00
    The Newmar Power-Pac 14AH is a true uninterruptible DC power source for 12-volt radios and critical navigation equipment on commercial vessels, work boats and yachts. Running from 115 or 230 V AC (selected by a rear-panel slide switch, 50–60 Hz, with a standard 6-foot...
    $1,283.00
    $1,411.30
    $1,283.00
  • Newmar 115-24-35CD Power Supply

    Newmar 115-24-35CD Power Supply MPN - 115-24-35CD SKU: 102291
    MPN: 115-24-35CD

    $3,675.00
    $4,042.50
    $3,675.00
    The Newmar 115-24-35CD is a 115-series DC power supply. It converts AC power from shore or a generator into regulated 24-volt DC, the reverse of what an inverter does. It is designed for 24-volt communication and navigation equipment on commercial vessels and in other...
    $3,675.00
    $4,042.50
    $3,675.00
  • Newmar 115-24-18CD Power Supply

    Newmar 115-24-18CD Power Supply MPN - 115-24-18CD SKU: 102290
    MPN: 115-24-18CD

    $2,492.00
    $2,741.20
    $2,492.00
    The Newmar 115-24-18CD is a 115-series DC power supply. It converts AC power from shore or a generator into regulated 24-volt DC, the reverse of what an inverter does. It is designed for 24-volt communication and navigation equipment on commercial vessels and in other...
    $2,492.00
    $2,741.20
    $2,492.00
  • Newmar 115-24-10 Power Supply

    Newmar 115-24-10 Power Supply MPN - 115-24-10 SKU: 102289
    MPN: 115-24-10

    $1,593.00
    $1,752.30
    $1,593.00
    The Newmar 115-24-10 is a 115-series DC power supply. It converts AC power from shore or a generator into regulated 24-volt DC, the reverse of what an inverter does. It is designed for 24-volt communication and navigation equipment on commercial vessels and in other...
    $1,593.00
    $1,752.30
    $1,593.00
  • Newmar 115-12-8 Power Supply

    Newmar 115-12-8 Power Supply MPN - 115-12-8 SKU: 102288
    MPN: 115-12-8

    $735.00
    $808.50
    $735.00
    The Newmar 115-12-8 is a 115-series DC power supply. It converts AC power from shore or a generator into regulated 12-volt DC, the reverse of what an inverter does. It is designed for 12-volt communication and navigation equipment on commercial vessels and in other...
    $735.00
    $808.50
    $735.00
  • Newmar 115-12-35CD Power Supply

    Newmar 115-12-35CD Power Supply MPN - 115-12-35CD SKU: 102287
    MPN: 115-12-35CD

    $2,342.00
    $2,576.20
    $2,342.00
    The Newmar 115-12-35CD is a 115-series DC power supply. It converts AC power from shore or a generator into regulated 12-volt DC, the reverse of what an inverter does. It is designed for 12-volt communication and navigation equipment on commercial vessels and in other...
    $2,342.00
    $2,576.20
    $2,342.00
  • Newmar 115-12-20A Power Supply

    Newmar 115-12-20A Power Supply MPN - 115-12-20A SKU: 102286
    MPN: 115-12-20A

    $1,603.00
    $1,763.30
    $1,603.00
    The Newmar 115-12-20A is a 115-series DC power supply. It converts AC power from shore or a generator into regulated 12-volt DC, the reverse of what an inverter does. It is designed for 12-volt communication and navigation equipment on commercial vessels and in other...
    $1,603.00
    $1,763.30
    $1,603.00

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Product Selection Support


Need help choosing? Contact our team with your task and the product you are considering.

Choose the Right RV Power Inverter for Your Setup

Compare four essential electrical specifications before selecting an automotive or RV power inverter. The right combination of battery voltage, power capacity, output waveform and connections helps you narrow your choices.

  1. Match Your Battery Voltage

    Choose a 12V, 24V or other supported DC input inverter based on your vehicle or RV battery system. Verify the manufacturer's accepted input voltage range, battery compatibility and current requirements before ordering.

  2. Check Power & Surge Ratings

    Compare continuous inverter wattage with the combined running power of your appliances. Check surge capability for devices such as refrigerators, compressors or other equipment with higher startup requirements.

  3. Select the Right AC Waveform

    Pure sine wave RV inverters produce sinusoidal AC output for compatible electronics and appliances. Review the waveform, AC voltage and frequency requirements of your equipment before selecting a power inverter.

  4. Verify Connections & Controls

    Review mounting space, ventilation, AC connections, cable requirements and compatible remote controls. Check whether the listing includes a complete inverter, a control accessory or a replacement component.

Verify Power Inverter Compatibility Before Ordering

Automotive and RV power inverter compatibility setup with a deep-cycle battery, inverter, red and black cables, fuse holder, battery terminals, voltage monitor, and disconnect switch.

Selecting the right automotive or RV power inverter starts with the battery system and intended AC loads. Identify your battery bank's nominal DC voltage, battery chemistry, discharge capacity and electrical protection requirements. Compare these details with the inverter's supported input range, continuous output rating, surge capacity and AC output specifications.

Installation requirements are equally important. Check the manufacturer's instructions for cable sizing, overcurrent protection, grounding, ventilation, mounting orientation and AC wiring. If your RV uses shore power, transfer switching or an existing battery charger, confirm the new inverter can be integrated appropriately. Remote panels and communication accessories must also be verified against the exact inverter model.

How to Choose the Right Automotive & RV Power Inverter

Choosing an RV power inverter involves more than selecting a wattage rating. Follow these five steps to compare electrical requirements, inverter functions and installation needs before buying.

  1. Determine Your Total Power Requirements

    List the appliances and electronics you intend to power simultaneously. Add their continuous running wattages and identify equipment that requires higher startup power. Compare both continuous and surge ratings with your intended load, allowing for manufacturer-defined operating limits.

  2. Match the Inverter to Your Battery System

    Confirm whether your RV or vehicle uses a 12V, 24V or another battery configuration. Select a power inverter with a compatible DC input range and verify battery discharge capability, system protection and recommended cable requirements. Do not assume that battery capacity alone establishes inverter compatibility.

  3. Compare Pure Sine Wave & Other Inverter Types

    Pure sine wave inverters are an important option for appliances and electronics requiring sinusoidal AC power. Modified sine wave models may suit certain manufacturer-approved loads, but compatibility varies. Check the electrical requirements of every connected device before choosing an inverter waveform.

  4. Understand Inverter vs Inverter/Charger Functions

    A standalone inverter converts battery DC into AC electricity. An inverter/charger adds battery-charging functionality from a supported external AC source and may include transfer or power-management features. Choose the equipment type that matches your current RV charging system and planned electrical configuration.

Build a Reliable RV Power Inverter Setup

A properly planned automotive or RV electrical system requires more than a power inverter. Understand how to supply battery power, connect compatible equipment and protect electrical components before installation.

  1. Power — Match Your Battery & Inverter

    Start with a battery system capable of supporting the inverter's specified DC input and the current required by your AC loads. Compare battery voltage, usable capacity, inverter efficiency and continuous power requirements. Check the battery manufacturer's discharge limits before operating high-demand appliances.

  2. Connect — Choose Compatible Electrical Equipment

    Compare standalone inverters, inverter/charger combinations and manufacturer-approved control accessories. Confirm AC output, DC connection requirements, supported communication interfaces and compatibility with existing charging or shore-power equipment.

  3. Protect — Plan for Electrical Safety

    Review the inverter manufacturer's requirements for DC overcurrent protection, cable sizing, grounding, ventilation, mounting and AC circuit protection. Use specified protective components and appropriate installation procedures to reduce electrical and overheating risks.

Single Inverter Units, Accessories & Complete Power Solutions

RV power inverters, deep-cycle battery, red and black power cables, fuse holders, disconnect switch, and electrical accessories displayed inside a camper with a scenic mountain lake view.

Automotive and RV inverter listings may include complete power inverters, inverter/charger equipment, remote controls or replacement accessories. Understanding the exact product type and package contents helps you avoid ordering an incomplete or incompatible electrical solution.

Compare Automotive & RV Power Inverter Options

Compare RV power inverter types by electrical function, battery input, AC output and intended application. Review the manufacturer's specifications for the exact product before ordering.

Inverter Type / Option Purpose & What to Verify
Pure Sine Wave Power Inverter Converts compatible battery DC into sinusoidal AC output. Compare rated continuous power, surge capacity, DC input voltage, AC output and connected appliance requirements.
Modified Sine Wave Inverter Provides a non-sinusoidal AC output waveform for certain compatible loads. Verify that each appliance is approved for this waveform before selecting this inverter type.
12V DC Power Inverter Designed for an inverter-compatible 12V nominal battery system. Check input voltage range, continuous wattage, battery current, AC output and installation protection.
24V DC Power Inverter Designed for an inverter-compatible 24V nominal battery system. Confirm battery voltage, AC output, continuous power, surge rating and manufacturer installation requirements.
High-Capacity RV Inverter Supports larger AC loads where properly rated. Compare simultaneous running wattage, startup surge, battery discharge capability, cooling and installation requirements.
Standalone Power Inverter Converts battery DC into AC electricity without integrated battery charging as its primary function. Confirm whether separate charging or transfer equipment is required.
Inverter/Charger Combination Combines DC-to-AC inversion with supported battery charging from an external AC source. Check charging profiles, AC inputs, transfer features and battery compatibility.
Inverter Remote Control Provides compatible inverter monitoring or remote control functions. Match the exact manufacturer, inverter family, part number and supported interface.
Communication Module / Accessory Adds model-specific communication or system integration functionality. Verify supported protocols, connection requirements, included cables and compatible inverter models.

What Our Customers Says

Reliable pure sine wave power for off-grid camping

Installed this pure sine wave inverter in our travel trailer setup. It powers our laptop, TV, and delicate electronics smoothly without producing any hum or electrical noise. A must-have for off-grid boondocking.
Sarah Jenkins Verified buyer
August 2026

Handles high surge power for RV microwaves and appliances

Handles peak surge currents effortlessly when starting up our small refrigerator and kitchen appliances. The heavy-duty terminal posts and internal cooling fan keep everything running stable under load.
Derek Sterling Verified buyer
July 2026

Clear digital display and low idle power consumption

The built-in digital display panel provides real-time battery voltage and AC output wattage monitoring. Extremely efficient conversion rate with minimal drain on our 12V house battery system.
Jessica Morgan Verified buyer
June 2025

Quiet cooling fan operation and built-in safety protection

The intelligent cooling fan only kicks in under heavy electrical loads and stays surprisingly quiet. Appreciate the built-in overload, thermal, and low-voltage shutdown protections.
Gavin Rhodes Verified buyer
November 2025

Fast shipping with heavy-duty battery cables included

Arrived well-packaged with thick gauge power cables and clear wiring instructions. Easy to mount on the compartment wall in our motorhome with plenty of ventilation space.
Hannah Miller Verified buyer
August 2025

Flawless AC power conversion for remote work vans

Converted our camper van into a mobile office powered by this inverter unit. Clean power delivery allows us to run power tools, battery chargers, and laptops simultaneously.
Arthur Pendelton Verified buyer
May 2024

Top choice for overland vehicles and RV power upgrades

Solid overall build quality and dependable 12V to 110V AC power conversion. Highly recommend it for anyone looking to build out an independent RV power system.
Colton Briggs Verified buyer
January 2024

Helpful Guides

Explore guides and tips related to this collection.

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How to Choose the Right RV Power Inverter

An RV power inverter lets you use suitable AC equipment from a compatible battery system. Choosing one involves more than...

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Blue Victron Energy pure sine wave inverter beside electrical test instruments, with Pure Sine vs Modified Sine text.

Pure Sine Wave vs Modified Sine Wave Inverters

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What Size Inverter Do I Need for My RV?

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Frequently Asked Questions

What does an RV power inverter do?

An RV power inverter converts compatible battery DC electricity into AC electricity for supported appliances and electronic equipment. Common applications include camper and motorhome power systems. The connected devices must stay within the inverter's continuous output, surge rating and AC specifications.

What size power inverter do I need for my RV?

Choose an RV inverter based on the total continuous wattage of appliances you plan to operate simultaneously and any additional startup surge. Check the battery's discharge capability, inverter efficiency and manufacturer operating limits before selecting a power rating.

Is a pure sine wave inverter better for an RV?

A pure sine wave inverter is often preferred for RV systems powering electronics and appliances that require sinusoidal AC electricity. However, suitability depends on the actual connected devices. Check each appliance manufacturer's requirements before choosing an output waveform.

Can a 12V power inverter work with a 24V battery?

A 12V-only inverter should not be connected directly to a 24V battery system. The inverter must be rated for the applicable input voltage, or the system must use an appropriately engineered voltage-conversion arrangement. Always verify the manufacturer's DC input limits.

Does an RV inverter also charge the battery?

A standalone RV inverter normally converts DC electricity into AC power without charging the battery. An inverter/charger combines inverter operation with battery charging from a supported external AC source. Features and battery compatibility vary by model.

What is the difference between continuous power and surge power?

Continuous power indicates the inverter's sustained rated output under specified conditions. Surge power describes additional short-duration output capacity used by certain appliances during startup. Check the surge rating and permitted duration of the exact inverter.

Can an RV inverter operate a microwave or refrigerator?

An appropriately rated RV inverter may operate compatible microwaves, refrigerators and similar appliances. The inverter must support their running power, startup requirements and AC specifications, while the battery system must provide sufficient energy and discharge current.

How long will an RV power inverter run on a battery?

Inverter runtime depends on usable battery energy, connected AC loads, inverter efficiency, standby consumption and battery discharge restrictions. Larger battery capacity can support longer operation, but actual runtime must be estimated using the complete system specifications.

Can I install a power inverter in my camper myself?

RV inverter installation must follow manufacturer instructions and applicable electrical requirements. DC overcurrent protection, cable sizing, grounding, ventilation and AC wiring are important safety considerations. A qualified electrical installer is recommended for high-power or hardwired systems.

How do I know if an inverter accessory is compatible?

Confirm the accessory's manufacturer part number against the exact inverter model and supported product family. Remote controls and communication modules may require specific interfaces or firmware. Similar-looking connectors do not guarantee compatibility.

Need Help?

 Find the Right Product Information Before You Order 

Not sure which automotive or RV power inverter matches your battery system, AC loads or existing electrical equipment? Contact Mariners Warehouse for help comparing inverter specifications, manufacturer part numbers, output requirements and compatible accessories before ordering.

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