AC200MAX vs Yeti Pro 4000

This comparison targets buyers weighing a mid-capacity expandable station against a high-capacity powerhouse for home backup, off-grid setups, or heavy appliance use. The Yeti Pro 4000 nearly doubles the AC200MAX in battery capacity (3,993.6 Wh vs. 2,048 Wh) and delivers 3,600W of running power compared to 2,200W, letting it handle larger loads like full-size refrigerators, power tools, and multiple circuits simultaneously.

It also accepts up to 3,000W of solar input, more than triple the AC200MAX's 900W ceiling, which matters for users running large panel arrays. In device compatibility testing across 53 appliances, the Yeti Pro 4000 passed 47 while the AC200MAX passed 45.

The tradeoff is weight: at 115.7 lbs, the Yeti Pro 4000 is nearly twice as heavy as the 61.9 lb AC200MAX, making portability a real consideration for camping or mobile use.

The AC200MAX suits buyers who need a capable, expandable LFP station they can actually carry to a campsite or load into a vehicle without a second pair of hands. The Yeti Pro 4000 is the better fit for stationary home backup or workshop use where its 3,600W output, massive 3,993.6 Wh reservoir, and 3,000W solar input justify the extra bulk. With a higher compatibility score of 95 vs. 88.5, the Yeti Pro 4000 earns the overall recommendation here.