Best Smallest Generators to Run RV Air Conditioners: Easy Pick Guide
Discover compact, low-power options that let an RV air conditioner run reliably. This guide highlights five top soft-start and low-power solutions ideal for travelers who want to keep cool without a heavy generator. The best picks are suited for weekend campers, full-timers on limited shore power, and RV travelers who need quiet operation and simple setup. Each product includes clear reasons for its selection, best-use scenarios, and a practical caveat. The following quick table summarizes the featured items to help you compare at a glance.
| Product | |||
|---|---|---|---|
| SoftStartRV Soft Start Kit | Soft start module | RVers with small generators or 15-amp hookups | Up to 36,000 BTU with 2200W generator capability |
| MICRO-AIR EasyStart FLEX 398 | Soft start kit | Generators and limited power areas | Reduces startup current by up to 75% |
| BougeRV PC35 Portable AC | Portable AC | Tent/RV camping with app control | 3500 BTU, 64 ft² coverage |
| 12V RV Air Conditioner (Somokg) | 12V DC battery-powered unit | Off-grid campers and tiny setups | 11,000 BTU with soft start; runs on battery/solar/generator |
| Xenjum 12V RV Air Conditioner | 12V DC battery-powered unit | Off-grid and boondocking | 11,000 BTU with soft start; battery-powered |
SoftStartRV Soft Start Kit for RV Air Conditioner
The SoftStartRV kit is designed to reduce startup current and allow multiple appliances to run from smaller generators. It is marketed as 40% smaller to fit low-profile A/C units and claims to power up to two A/Cs on a 30-amp system or one on a small generator. It is described as 100% waterproof and designed to reduce compressor noise and vibration. Best for RVers who need a compact, weatherproof option that works with limited power. A potential limitation is the lack of explicit installation steps in the product summary, so installation clarity should be verified before purchase.
MICRO-AIR EasyStart FLEX 398
The EasyStart FLEX 398 is positioned as an advanced soft-start kit compatible with home, RV, and commercial AC systems, supporting units up to 6 tons (72,000 BTU). It emphasizes reducing startup current by up to 75% and compatibility with generators and inverters. This makes it a strong pick for users who need robust power relief in variable power environments. Best for RV owners who want a widely adaptable, high-capacity soft start. A caveat is that installation may require some technical steps, though the kit includes an installation package.
BougeRV PC35 Portable Air Conditioner 3500BTU
BougeRV PC35 is a compact 3500 BTU portable A/C with app control, designed for tent and RV use. It claims cooling of up to 64.58 ft² and temperature adjustment from 61°F to 90°F. The product emphasizes portability and remote control via an app within a 33-foot range. Best for campers who want a lightweight, app-controlled cooling option for smaller spaces. Limitation: real-world cooling can vary with environmental conditions, so performance will depend on insulation and humidity.
12V RV Air Conditioner | Somokg
This 12V unit offers 11,000 BTU cooling with soft-start features and is described as suitable for off-grid use. It emphasizes operation on battery, solar, or generator with an Eco mode delivering extended runtime. Best for off-grid campers who prioritize battery or solar power. A limitation is that the product text notes “Cool Only,” which may affect needs if heating is required in some seasons.
ActiveStart SoftStart 30 Amp Kit
The ActiveStart SoftStart Kit is a plug-and-play solution with Bluetooth app monitoring. It emphasizes ease of connection with no wiring and includes a surge module (2100 joules) to manage power changes at campgrounds or shore power setups. Best for RVers who want quick setup and remote monitoring from a mobile app. The caveat is that it relies on Bluetooth for setup and monitoring, which may require a compatible device and app access.
Wodli Soft Start Kit for RV Air Conditioner
Wodli’s RV soft starter is pitched to help start a 15,000 BTU A/C on a 2200W generator and support other appliances. It enables two A/Cs to run on a 30A hookup with two soft starters. Best for RV setups where power availability is constrained but more than one appliance needs to run. A limitation is that it notes requiring two starters for dual A/C operation, which may raise total cost for some users.
Xenjum 12V RV Air Conditioner
Xenjum offers a 12V DC battery-powered air conditioner with soft-start and 11,000 BTU cooling. It is positioned for off-grid use, boasting quiet operation and higher energy efficiency. Best for boondocking or campers who rely primarily on battery/inverter power rather than shore power. Limitation: as a 12V unit, it may require a robust electrical setup and may not fit every RV roof installation without compatibility checks.
Buying Guide
- Power compatibility: Match your generator or battery system to the AC’s required startup current and continuous load. Soft-start kits reduce surge and may let smaller generators handle air conditioners.
- Space and installation: Consider unit size, mounting requirements, and whether a plug-and-play solution fits your RV layout or needs professional installation.
- Environment and climate: If you frequently camp in extreme heat, prioritize higher BTU ratings and reliable startup performance under load.
- Multi-appliance capability: If you plan to run multiple devices simultaneously, look for kits that advertise high surge relief and compatibility with additional appliances.
- Power source choice: For off-grid travelers, 12VDC equipped units offer independence from shore power but may require larger battery banks or solar arrays.
FAQs
- What is a soft-start kit for an RV air conditioner?
A soft-start kit reduces the initial power surge when starting an air conditioner, allowing smaller generators or limited power sources to handle the startup more smoothly.
- Do I need two soft-start units for two A/C units?
In some setups, two soft-start units are recommended to run two A/C units on a single 30A hookup, but check your specific generator capacity and RV electrical system.
- Can a 12V RV air conditioner run off-grid without a generator?
Yes, some 12V units are designed to operate on battery or solar power, but they require substantial battery capacity and an efficient solar setup for extended use.
- Are soft-start kits compatible with all RV models?
Compatibility depends on the A/C unit’s size and electrical requirements. Verify BTU rating and startup current before purchasing.
- Is app control available for all soft-start products?
Some models offer Bluetooth or app-based monitoring and setup, while others rely on manual controls or basic interfaces.
- What should I consider when choosing between portable and roof-mounted A/C options?
Portables are flexible and easy to replace, while roof-mounted units are typically more efficient for space-constrained RVs. Consider space, insulation, and ducting needs.