Best for Shore Power Transfer · 1 of 5
EGSCATEE 2500W Pure Sine Wave Inverter with Built-in ATS, 12V DC to 110V AC, 5000W Peak

- 2500W, 5000W peak
- Built-in ATS, about 12ms
- Hardwired AC input
Our take
Pick it if you want the inverter to take over when shore power drops, with minimal flicker.
Why it made the shortlist
The EGSCATEE 2500W lists 2500W continuous and 5000W peak pure sine output, and its distinguishing feature is a built-in automatic transfer switch that moves between shore power and battery in about 12 milliseconds. It has a hardwired AC input terminal block for live, neutral and ground, protections for overload, over-voltage, low voltage, over-temperature and short circuit, and an intelligent cooling system.
It costs $50.00 more than the TAGEEBLU and $98.30 more than the WZRELB, and in return it removes the need for a separate transfer switch.
What works
- Stated 12ms transfer between shore power and battery
- Hardwire terminal block for live, neutral and ground
- Pure sine output for CPAP and sensitive electronics
- Five protections including overload and over-temperature
Watch out for
- No battery charger, so a converter is still needed
- Listing excerpt omits idle draw and warranty
- The catch
- It does not list a charger, so the battery still needs a separate converter.





