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Can you trust a portable battery for home backups? My advice after testing one

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ZDNET’s key takeaways

  • The Ampace Andes 1500 is a portable power station that sells for $1,399.
  • It features a 1462Wh capacity, which enables it to power essential appliances during an outage.
  • While it is a reliable power station, it is expensive, so you can often find better value from competitors.

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I rely on a great power station in my home. I live in an area that is sometimes affected by power outages, with my home experiencing at least a handful each year. Whether it’s a storm, a maintenance issue, or a fallen tree, I don’t like my kids spending winter nights without heat. 

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Aside from full home backup power, a great portable power station also powers individual devices as needed, like a chainsaw to cut down a fallen tree in the backyard, a coffeemaker during an outage, or inflating an air mattress while camping.

I used the Ampace Andes 1500<!–> portable power station last summer for these activities and more, and here are my thoughts.

The Andes 1500 is a 1462Wh LiFePO4 portable power station built to provide power wherever needed. It features up to 6,000 charging cycles before degradation is evident, fast charging with an A-Boost function, and 2400W output power. 

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LiFePO4 batteries, or lithium iron phosphate batteries, are thermally and chemically stable batteries that provide a long lifespan compared to traditional lithium-ion batteries. They use lithium iron phosphate as the cathode material and a graphite carbon electrode as the anode. This makes them more stable than other battery chemistries, like lithium cobalt oxide, often found in smartphones and wearables. 

<!–> Ampace Andes 1500
Maria Diaz/ZDNET

Essentially, LiFePO4 is less likely to overheat, even in harsh conditions, and is best suited for high-performance applications. The drawback? LiFePO4 batteries are heavier and bulkier than most lithium-ion batteries. The Ampace Andes 1500 weighs about 35 lbs. 

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While it weighs 35 lbs, the Ampace Andes 1500 has two handles along the top, making it easy to carry from one spot to another. Its portability is a definite plus. The convenience of a power station makes a big difference in something as simple as keeping a fan running in a tent during a hot weekend campout.

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Maria Diaz/ZDNET

In our tests, the Andes 1500 showed a 1219Wh usable capacity or about 83% of the advertised hourly wattage. This is what you’ll actually get to use during a discharge cycle. No manufacturer gives 100% usable capacity, but a minority can get close, like the much smaller Jackery Explorer 240<!–>, which scored 99%. 

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The Andes 1500 takes just over an hour and 15 minutes to charge from depletion to 100%, making it one of the fastest charging power stations available. If you enable the A-Boost function on the Ampace app for faster charging, you can get it up to 100% in about 55 minutes. 

ZDNET’s buying advice

I’d recommend the Ampace Andes 1500–> if you’re looking for a medium portable power station on the go. It’s perfect for camping trips and outdoor activities. It has a built-in camping light and is portable enough to use as a power source for exterior work.

If you’re looking for value for money, however, you may do better to look elsewhere, especially during sales events. Right now, you can get a 2,400W EcoFlow Deta 2 Max<!–> portable battery for the same price of $999, as it’s on sale from its regular $1,899 price. The Bluetti AC200L–> is also 2,400W and 50% off at $999. 

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Source: Robotics - zdnet.com