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Portable power stations are key to have around during power outages to keep your devices running, or for camping or going off-grid. As part of ZDNET's Lab Awards series, we ran 10 portable power stations through the gauntlet in our lab based in Kentucky, evaluating how much power each station can provide relative to how much it draws to charge, to determine overall efficiency.
Also: June Prime Day live blog 2026: We're tracking Amazon deals on SSDs, TVs, laptops, and more
We tested both large and small portable power stations for power consumption over time, measured in watt-hours (the total energy used or produced). Our top picks include flagship models from brands like Jackery, Anker, and more, and because Amazon Prime Day happens this week, many of them are on sale right now for as much as 47% off. These are our favorite portable power station deals on models we've tested.
The portable power station that stood out above the rest in the small category (devices with 600-1,100 Wh) was the Oupes Mega 1. The Oupes Mega 1 took only 21 minutes to charge to 100% in its group, while still retaining 1024 watts per hour.
Review: Oupes Mega 1
Aside from its efficiency, the Oupes Mega 1 offers a range of power outputs, including a bank of four AC outlets, USB-C and USB-A ports (100W and 18W maximum, respectively), a 12V car outlet, and two DC5521 ports.
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While perhaps the most expensive portable power station on this list, the Jackery Explorer 2000 Plus still has a decent discount of $220 off on Amazon. In our testing, this large portable power station took 115 minutes to charge to 100% while retaining 2042.8 watts per hour.
Review: This portable battery station can power your home for 2 weeks
To match its big price, this is a really big setup, so while it's not for everyone, it without a doubt represents the ultimate in portable power storage.
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The Anker Solix C800 Plus is a durable, small-sized portable power station, stuffed with durable LiFePO4 batteries that can stash a whopping 768Wh of power. Plus, it has ten ports ready to charge up all your gadgets. It's like the Goldilocks of power stations; it's just the perfect size, packing plenty of punch without being a hassle to lug around.
Review: This portable power station has a standout feature that makes camping safer than ever
In our testing, it charged to 100% in 27 minutes.
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In the large category, the EcoFlow Delta 2 Max can reach a full charge in 98 minutes while retaining 2048 watts per hour.
The six AC outlets can handle a whopping 2,400W of load (and up to 3,400W for resistive loads such as heaters), which is enough to run 99% of home appliances such as refrigerators, space heaters, and more.
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This year, Amazon set its annual Prime Day event a little earlier, bumping it up into June instead of its usual July slot. The Prime Day sales event is officially from June 23-26, but you can expect sales prior to and even after the event.
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