OLTEANP 3500W Pure Sine Wave Inverter with Auto Transfer Switch – 12V to 120V, 7000W Peak

OLTEANP 3500W Pure Sine Wave Inverter with Auto Transfer Switch

Meet a rugged power converter designed for RVs, trucks, and off-grid cabins. With 3500 watts of continuous output and up to 7000 watts of peak surge, it can handle refrigerators, microwaves, coffee makers, power tools, and multiple devices at once— ideal for shifting between battery power and shore power without missing a beat.

Seamless power switching for uninterrupted output

The built-in auto transfer switch detects changes from battery power to shore power in about 12 milliseconds, delivering near-seamless AC to your appliances. This quick transition helps avoid interruptions during cooking, climate control, or tool startup.

• Automatic transfer between 12V battery and 120V shore power
• Fast around 12 ms switch time minimizes device flicker
• Supports RVs, trucks, and off-grid setups seeking reliable operation

Pure sine wave for sensitive electronics

The inverter produces a clean, grid-quality sine wave with minimal distortion, reducing buzzing and jitter in laptops, CPAP machines, TVs, and other sensitive gear.

• Safe power for electronics and electronics-heavy devices
• Reduces noise and waveform irregularities

Remote monitoring and robust protection

A 15 ft wired remote LCD controller lets you monitor voltage and status from a distance. The unit includes protection against overload, overheating, short circuits, over-voltage, and low voltage to support reliable mobile use.

12V DC to 120V AC conversion — no battery included

This model functions as a high-capacity power converter: it converts external 12V DC to 120V AC, but does not store energy or charge a battery.

What you get and support

• 1× 3500W 12V Power Inverter
• Battery cables
• User manual

• Backed by 12 months of professional support
• 24/7 customer service for troubleshooting and guidance

Why choose OLTEANP

OLTEANP designs durable, heavy-duty power conversion gear intended for on-road and off-grid adventures. This inverter pairs with reliable customer support and a responsive service team to help you troubleshoot and optimize your setup.

Explore how clean, flexible power can complement your vehicle or cabin life—without overpromising results. The possibilities include powering essential appliances, running tools for a weekend project, or maintaining comfort during outages.