GoKawiilCNET Lab Test: Fossibot 3600 Pro Runs a Fridge Longest Among 19 Power Stations
CNET tested 19 large and extra-large portable power stations by connecting each to a standard refrigerator to see how long they could keep it running. The Fossibot 3600 Pro led the pack at 44.65 hours, narrowly beating the Oupes Mega 5 at 43.72 hours, while the Oscal Power Max 2400 lasted just 12.58 hours. Notably, the pricier Anker Solix F3800 Plus underperformed relative to its large 3,840Wh capacity, running only 25.68 hours.
GoKawiil's interpretation of the reporting above, not reported fact.
The results challenge the assumption that keeping essential appliances running during an outage requires an expensive whole-home battery system. Efficiency, not just battery size, determines real-world performance, meaning buyers could overspend on larger units that actually underdeliver. This kind of independent testing helps consumers make cost-effective choices for blackout preparedness.
- Fossibot 3600 Pro and Oupes Mega 5 delivered the longest fridge runtimes in testing.
- Battery capacity alone doesn't guarantee performance—efficiency varies widely between brands.
- Budget-friendly power stations can be sufficient for running major home appliances during outages.
Anker SOLIX F3800 Plus Power Station — If you want a big-battery backup that can actually run a fridge through an outage, Anker's SOLIX F3800 Plus is one of the extra-large stations CNET put on the test bench. It offers home-appliance-level AC output plus expandability, so you can add capacity as your backup needs grow. A solid pick for keeping food cold and routers online when the grid goes down.
See Anker SOLIX F3800 Plus Power Station on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: cnet.com — Ajay Kumar, 2026-09-08
Published there as: “After Testing 19 Portable Power Stations, These 4 Will Keep Your Fridge Running the Longest”
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