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2500W Pure Sine Wave Power Inverter with Transfer Switch

$229.99 on Amazon.com (as of October 9, 2026, 5:16 PM EST) View details ↗

Upgrade your mobile power supply with the OLTEANP 2500W Pure Sine Wave Inverter, engineered for RVs, trucks, boats, cabins, and off‑grid systems. This unit delivers 2500W of continuous, clean 120V AC power—ideal for laptops, TVs, refrigerators, and more—while its 5000W peak rating handles the startup surges of motors and compressors. The inverter is not a battery charger; it simply converts 12V DC from your battery into reliable AC output.

Equipped with a built‑in 12‑millisecond automatic transfer switch, the inverter seamlessly switches between shore power and battery power. When shore power is available, the unit bypasses the battery and supplies AC directly to your appliances. If shore power drops, the inverter flips to battery mode in roughly 12ms, minimizing interruption. When shore power returns, it automatically reverts to AC bypass mode. The design includes comprehensive protection against low voltage, over‑voltage, overload, short circuit, and overheating, safeguarding both the inverter and your connected equipment.

Installation is straightforward: the package includes a pair of 25 mm² (≈3 AWG) battery cables, 60 cm (1.97 ft) long, for short‑distance connections. For longer runs or continuous high‑load use, upgrade to heavier‑gauge pure copper cables and install a properly rated DC fuse close to the battery to prevent voltage drop and overheating. A 15‑foot wired LCD remote lets you turn the unit on or off and monitor DC input voltage, AC output status, power usage, and fault alerts from inside your vehicle. The inverter comes with a 12‑month warranty and responsive technical support.

Peak Power5000W
Continuous Power2500W
Transfer Switch Delay12 ms
Battery Cable Gauge25 mm² (≈3 AWG) 60 cm
Remote Length15 ft
Warranty12‑month
What happens when shore power is lost?
The inverter switches to battery output in about 12 ms, minimizing interruption.
Can I use longer battery cables?
Yes, but use heavier‑gauge copper cables and install a DC fuse near the battery to avoid voltage drop.
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