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Customer Ratings & Reviews

Your price for this item is $249.99

Customer reviews

Rating 4.8 out of 5 stars with 17 reviews

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Rating by feature

  • Value

    Rating 4.5 out of 5 stars

  • Quality

    Rating 4.9 out of 5 stars

  • Ease of Use

    Rating 4.9 out of 5 stars

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100%would recommend to a friend

Customers are saying

Customers express satisfaction with the Powerhouse 521 portable power station for its portability and battery life. They appreciate its compact size and quality construction, making it convenient for various uses. The extended battery life of 4-5 hours is also highlighted as a positive aspect, allowing users to power their devices for extended periods.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
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Page 1 Showing 1-15 of 15 reviews
  • Pros mentioned:
    Portable, Solar panel

    Rated 5 out of 5 stars

    Packs a punch!

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This little power station is great for keeping phones/flashlights/camera gear charged on longer outings/camping trips. I used it to run a 12v refrigerator in the trunk, and you can charge the battery off the car while it powers the fridge. Bought in a bundle with the Anker solar panel, pictured.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life, Portable
    Cons mentioned:
    Usb-c port

    Rated 5 out of 5 stars

    Awesome portable charger

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    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Wanted something to have power anywhere. My main use is with the Samsung Freestyle Projector and Nintendo switch. Have plenty of Mario Kart and Smash Bros on the go. With both I get about 4-5 hours or use. Has plenty of ports. Only wish it had one more usb C port

    I would recommend this to a friend
  • Pros mentioned:
    Built-in lamp

    Rated 5 out of 5 stars

    Excellent

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I honestly really liked it. It has a small built in lamp. I took it on a 5 day long cross country road trip/ camping. And it charged 2 iphones about 4 times each, and still had about 47% after the trip. Very well pleased with it. And the size is great too, its anout the size of a lunch box or a normal car battery.

    I would recommend this to a friend
    • Brand response from Anker Team
      Posted .

      So glad you love the product! Thank you for your support. We are super excited to provide something that betters your life. We promise to continue striving to exceed your expectations!

      Remember your device comes with a 5-year warranty, and anytime you need help just let us know.
      Email: support@anker.com
      Phone number: +1 (800) 988 7973 anker

  • Rated 5 out of 5 stars

    Small but powerful.

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I've had it about a month and am super happy with it. I gave it a slightly lower rating for Value, but if you buy it when it goes on sale, then it's an excellent value. First, this was smaller than what I expected, it's about the size of those small Igloo coolers yet has outlets for 2 AC (2-prong), 2 USB-A (+IQ), 1 USB-C (+IQ2) and 1 car plug. The AC outlets are for 2-prong plugs, but one of the plugs *could* be a 3-prong, there is a hole where the ground plug fits, however the device is not properly grounded since the hole is in the plastic body and is not connected to the power station. It's not too heavy at 8 pounds. There's plenty of capacity to charge phones and tablets multiple times. It can run small appliances with a maximum of 200 watts, but due to the small capacity, it won't run more than an hour for a 200W device. One cool use is to pair it with a guitar amp as it can run the amp for several hours. The AC outlets put out pure sine wave, so sensitive electronic devices as less likely to be damaged. It could be used as a UPS, but limited to 2-prong devices. I bought this specifically for the LiFePo batteries, which are half the weight of LiIon and have about 5 times the lifetime. I have several Anker devices, earbuds, bluetooth speakers, power banks over the years and they've always performed very well for me. I anticipate this 521 Powerhouse will perform as well over the years. Lastly, it's perfectly sized for charging/running smaller devices including sensitive electronics. It's not going to be much help when the power goes out and you need to run your fridge, but it's not designed for that purpose. Given my positive history with Anker, I will probably by one of their larger battery power generators for temporary use when the power goes out and before I have to wheel out my portable gas generator.

    I would recommend this to a friend
    • Brand response from Anker Team
      Posted .

      So glad you love the product! Thank you for your support. We are super excited to provide something that betters your life. We promise to continue striving to exceed your expectations!

      Remember your device comes with a 5-year warranty, and anytime you need help just let us know.
      Email: support@anker.com
      Phone number: +1 (800) 988 7973 anker

  • Pros mentioned:
    Battery life, Solar panel

    Rated 5 out of 5 stars

    Great product

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Ive used it several times out camping never let me down ive used it with the solar panel pretty decent battery life for several devices.

    I would recommend this to a friend
  • Pros mentioned:
    Portable

    Rated 5 out of 5 stars

    A must have in every one house hold

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    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I bought this because my light goes out every time it’s rain and i dont have to sit in the dark with this powerhouse i haven’t use it yet but to know if my power goes out i will have it

    I would recommend this to a friend
  • Pros mentioned:
    Easy to use

    Rated 5 out of 5 stars

    Workhorse

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    Posted . Owned for 5 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I have USED this powerhouse a lot! I've put it through its paces. Still working adequately and love the voltage meter in dial which shows us how many watts are being pulled. So easy to use. I am going to purchase the solar panel!

    I would recommend this to a friend
  • Pros mentioned:
    Portable

    Rated 5 out of 5 stars

    A hot little power house.

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    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This item will support a Microwave oven. Youi can plug about any kitchen item or computer or a cell phone or microwave oven. I cooked a TV dinner using it. Will even support a small refrigerator . For its size it willy packs a wollop.

    I would recommend this to a friend
  • Pros mentioned:
    Portable

    Rated 5 out of 5 stars

    Best Powerhouse in the Market

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    Posted . Owned for less than 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Small portable and quality made is good. Cant beat this power house with a built in light.

    I would recommend this to a friend
  • Pros mentioned:
    Portable

    Rated 5 out of 5 stars

    Awesome products

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This has everything to power your weekend getaways

    I would recommend this to a friend
    • Brand response from Anker Team
      Posted .

      So glad you love the product! Thank you for your support. We are super excited to provide something that betters your life. We promise to continue striving to exceed your expectations!

      Remember your device comes with a 5-year warranty, and anytime you need help just let us know.
      Email: support@anker.com
      Phone number: +1 (800) 988 7973 anker

  • Rated 5 out of 5 stars

    This is the better battery !

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    Posted . Owned for less than 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This is the only power station that BB currently sells that has LiFePO4 batteries. It will last about five times longer than lithium ion batteries. I just bought it but expect good things by what I’ve read online.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Useful power station

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    Posted . Owned for 3 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Best power station since it comes with charging plugs, usb ports, and even dc plug

    I would recommend this to a friend
  • Pros mentioned:
    Easy to use

    Rated 5 out of 5 stars

    Really impressive

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    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Bright flashlight, lots of charging ports, easy to use!

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Awesome!

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    Posted . Owned for less than 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    So far so good. Very well made and compact. Comes with a dc charger and ac charger. Looking to buy a second one!

    I would recommend this to a friend
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Great power at a great price!

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Best buy didnt have it in stock but shipped it directly to my house and it got here very quickly. The power station works great and unlike other power stations for around the same price, this accepts charging via 2 inputs at once. The USB C on the front and the dc input on the rear i can hook 2 solar panels up at once, or one power bank and a solar panel and other different combinations! The power station does give 90% of stated watt hours which is nice! The display is very accurate for watts being charged or used. It does allow charging while being used. Overall a great starting unit for anyone looking to have something that can charge multiple devices or run a car fridge or various devices! I bought this to run a setup in case of a power outage. After testing this power station it runs my nintendo switch OLED docked (which also charges the switch), a 32 inch vizio tv with built in 10w speakers for 7 hours. I then used the same tv with a elite pro 800 g1 mini pc with a i3 processor, keyboard, and mouse and it lasts around 4.5-5 hours depending on CPU load. Hope this helps!

    I would recommend this to a friend