Best RV Air Conditioner Soft Start Kits for Efficient and Quiet Cooling 2025

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Finding the right soft start kit for your RV air conditioner can greatly improve your cooling experience by reducing startup power surges, minimizing generator strain, and lowering noise levels. These kits enable your RV’s AC to start smoothly, especially when using smaller generators or limited power sources, which is essential for comfortable camping and traveling. Below is a summary table of top soft start kits specifically designed for RV air conditioners along with their key features.

Product Supports Multiple ACs Compatible with Generators Noise Reduction Max AC Capacity (BTU)
SoftStartRV Soft Start Kit Yes, up to two AC units on 30-amp Yes, works with 2200W generator Yes, reduces compressor noise 36,000 BTU
MICRO-AIR EasyStart FLEX 398 Yes, up to 6 tons (~72,000 BTU) Yes, designed for generators and inverters Yes, smooth startup reduces stress 72,000 BTU
Spartan Power SpartanStart Supports up to 20,000 BTU AC Yes, compatible with inverter or generator Reduces startup strain 20,000 BTU
Carropecas Soft Start for RV Yes, can run two ACs with two kits Yes, 2200W generator compatible Yes, reduces start-up current 65%-70% 15,000 BTU
Briidea Soft Starter for RV AC Yes, runs two ACs on 30A with two kits Yes, designed for small generators Yes, reduces starting current 65%-70% 15,000 BTU

SoftStartRV Soft Start Kit for RV Air Conditioner

SoftStartRV Soft Start Kit for RV Air Conditioner

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SoftStartRV offers a technologically advanced soft start solution for low-profile RV air conditioners. The device is now 40% smaller, fitting most RV A/C units conveniently. It supports starting two air conditioners on a 30-amp circuit or one on a small 2200W generator, making it a practical choice for limited power situations.

The unit is 100% waterproof, ensuring durability through various weather conditions. Its standout features include the ability to start multiple appliances such as refrigerators, heaters, microwaves, and TVs with minimal power surge. This kit also helps to reduce compressor noise and vibration, which promotes a quieter, more restful environment inside your RV.

MICRO-AIR EasyStart FLEX 398 Bluetooth Soft Start Kit

MICRO-AIR EasyStart FLEX 398 Bluetooth Soft Start Kit

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The MICRO-AIR EasyStart FLEX 398 is a premium and versatile soft start kit suitable for residential, RV, and commercial air conditioners up to 6 tons (~72,000 BTUs). It offers an advanced, controlled startup, effectively reducing mechanical stress, which extends the lifespan of your AC system.

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This kit comes with a complete installation kit and utilizes Bluetooth technology for added convenience. It is specially designed to work with generators and inverters, reducing the startup current by up to 75%, ideal for areas with limited or unstable power supply. Its compatibility with 2-stage compressors and heat pumps makes it adaptable to various cooling systems.

Spartan Power SpartanStart Soft Start Kit for RV Air Conditioner

Spartan Power SpartanStart Soft Start Kit

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SpartanStart soft start kit supports AC units up to 20,000 BTU and is specifically designed for RVs, vans, or campers needing to start AC systems via a 2200 watt inverter or generator without heavy battery drain.

Its features include a generator anti-stall and preload system to protect against power inconsistencies, seamless switching between power sources, and motor reversal protection during short outages. The kit includes splice connectors, mounting tapes, and cleaning wipes to ease installation.

Carropecas Soft Start Kit for RV Air Conditioner

Carropecas Soft Start Kit for RV Air Conditioner

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The Carropecas soft start kit enhances RV comfort by allowing a 15,000 BTU air conditioner to start effortlessly on a 2200W generator. This kit lets you operate multiple appliances simultaneously including refrigerator, heater, microwave, and TV without power issues.

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It supports running two air conditioners on a 30A connection when using two kits. The system reduces startup current by 65%-70%, which helps prevent generator overload or breaker trips. Noise reduction tech assists in delivering a quieter camping experience and extends the AC lifespan.

Briidea Soft Starter for RV Air Conditioner

Briidea Soft Starter for RV Air Conditioner

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The Briidea RV soft starter simplifies powering your RV air conditioner by enabling a 15,000 BTU unit to operate on a small 2200W generator. This device also supports other appliances such as microwaves and fans without straining the power supply.

You can run one AC with a 20A household hook-up or two AC units simultaneously on a 30A hookup using two soft starters. The Briidea kit reduces startup current by 65%-70%, preventing generator overload and tripping circuit breakers. Quiet operation and gentle power ramp help improve sleep quality and system longevity.

Buying Guide for RV Air Conditioner Soft Start Kits

Compatibility with Your RV Air Conditioner

Ensure the soft start kit supports the BTU rating of your air conditioner. Kits vary in capacity—some handle smaller 15,000 BTU units, while others are capable of supporting AC systems up to 72,000 BTUs. Verify the electrical specifications to match your RV’s AC unit and power system.

Power Source and Generator Compatibility

Soft start kits are most beneficial when operating from generators or limited power sources. Check if the kit is compatible with your generator’s wattage, typically around 2200W for many RV setups. Some kits also support power inverters and are designed to work well with 20 or 30-amp RV hookups.

Noise and Vibration Reduction

One of the key benefits of a soft start kit is reducing the noise and vibration caused by compressor startup. Look for kits that advertise noise dampening technology or smooth start features for a quieter, more comfortable RV environment.

Installation and Size

Consider the ease of installation – plug-and-play models simplify upgrading your system, while others might require basic wiring skills. Compact kits may fit better in tight RV spaces, especially for low-profile air conditioners.

Ability to Support Multiple Appliances or AC Units

Some kits can help run multiple appliances or even two air conditioners on limited power connections. This is useful if your RV requires simultaneous operation of several devices without overloading the circuit.

Durability and Weather Resistance

If your RV adventures take you outdoors and expose your setup to moisture, waterproof or weather-resistant soft start kits are important for long-term reliability.

Additional Features

  • Bluetooth connectivity for monitoring and control
  • Surge protection and motor reversal protection
  • Warranty terms and customer support availability

In summary, selecting the right RV air conditioner soft start kit depends on your RV’s cooling capacity, available power source, installation preferences, and additional features like noise reduction and multitasking ability. Using a soft starter can improve your RV’s electrical efficiency and overall comfort during travel and camping.

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