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$16.99
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Customer reviews

Rating 4.3 out of 5 stars with 475 reviews

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Rating by feature

  • Value

    Rating 4.5 out of 5 stars

  • Quality

    Rating 4.2 out of 5 stars

  • Ease of Use

    Rating 4.6 out of 5 stars

Pros mentioned filter

Cons mentioned filter

83%would recommend to a friend

Customers are saying

Customers are pleased with the charging speed, portability, and overall performance of the 5,000mAh SLIM METAL 20W Magnetic Wireless PowerBank. Users appreciate its convenient size and lightweight design for on-the-go charging. However, some customers have noted that the device tends to heat up during use, and a few desire a stronger magnetic connection and longer battery life.

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.
Page 21 Showing 401-420 of 475 reviews
  • Rated 5 out of 5 stars

    Good choice

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

    Easy to carry and works with all phones. Sometimes if case is thick it does not work.

    I would recommend this to a friend
  • Cons mentioned:
    Heat dissipation

    Rated 2 out of 5 stars

    Heats up

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

    Heats up , doesn’t stick properly, charges late and gives only 2 full charges

    No, I would not recommend this to a friend
    • Brand response from Energizer PowerPacks Service Team
      Posted .

      Hi Customer,
      To reduce heat during charging, it’s helpful to avoid letting your phone battery drop too low. When the battery is very low, your phone draws more power, which increases temperature. Keeping your phone around 90% and avoiding frequent deep discharges can also improve overall battery efficiency. If the heat or connection issues continue, please reach out for support:
      https://support.energizerpowerpacks.com/

  • Rated 2 out of 5 stars

    Good charging, not-so-good quality

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

    It's good quality and charges the phone fine, it's what i expect for $16. My issue is that I wasn't able to charge the power bank ITSELF using the USB-C port like a week later. What's the point of having a power bank without being able to give it power?

    No, I would not recommend this to a friend
    • Brand response from Energizer PowerPacks Service Team
      Posted .

      Hi TrivikK,
      We’re sorry to hear about your experience. Please contact us through our support page so we can help you directly:
      https://support.energizerpowerpacks.com/

  • Rated 5 out of 5 stars

    Slim charger

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

    Love it works great and its slmi doenst feel awkard.

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

    Good for the price

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

    Work exactly as expected would recommend if your charger breaks

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

    Good power bank

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

    Purchased for $12.99. Great value for slim, wireless power bank

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

    Light and powerful!

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

    Excellent and light! Works great! I like the charging options and the cord that it comes with.

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

    Price/quality 10/10

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

    Very compact low profile ,it charged my galaxy s25 ultra phone at 60%

    I would recommend this to a friend
  • Pros mentioned:
    Charging speed

    Rated 2 out of 5 stars

    No fast charge

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

    Not what I expected, wireless charging an iPhone in 10 minutes went up 5%, using charging cable plugged to bank 10 min up 10%

    No, I would not recommend this to a friend
    • Brand response from Energizer PowerPacks Service Team
      Posted .

      Hi Lalo,
      We’re sorry the charging speed didn’t meet your expectations. Wireless charging is generally slower than wired charging due to energy transfer limitations, so the difference you noticed is normal. For faster results, we recommend using the USB-C cable for charging. Your feedback helps us improve future designs.
      --Energizer PowerPacks Service Team

  • Pros mentioned:
    Portability

    Rated 1 out of 5 stars

    It's Like Fake Qi Charging

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

    It looks cool and you think it's gonna be great (small, lightweight) but it doesn't deliver. The Qi charging doesn't work through the back of my case which works fine on my plugged in night charging stand. Plus, I'd said when you can get it to charge, it only charges about half as fast as a "fast charging" plug-in transformer. And even then I'd only trust is to charge maybe from 60 to 100%, not a fully discharged phone, no way. Disappointed. Not dependable.

    No, I would not recommend this to a friend
    • Brand response from Jamal Chen
      Posted .

      Hi icetime,
      We’re sorry the charging performance didn’t meet your expectations. Wireless Qi charging can be slower than wired fast charging, and thick or non-MagSafe cases often block proper alignment, reducing efficiency. For best results, use a MagSafe-compatible case or remove the case entirely, and ensure the power bank is fully charged before use. If you suspect a defect, please reach out here:

      --Energizer PowerPacks Service Team

  • Rated 3 out of 5 stars

    Fast charging

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

    This is so inexpensive because it doesn’t stay on your phone. If you want to walk around with your phone I would choose something else. If you leave it stationary then it’s just fine

    No, I would not recommend this to a friend
    • Brand response from Energizer PowerPacks Service Team
      Posted .

      Hi KathyH,
      Thanks for sharing your experience. This power bank is designed for stationary use with magnetic alignment, so movement can cause it to detach. If portability while charging is important, a stronger MagSafe grip or a wired power bank would be a better choice.
      --Energizer PowerPacks Service Team

  • Cons mentioned:
    Heat dissipation

    Rated 2 out of 5 stars

    Not great but ok

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

    Device gets too hot very quickly. It also doesn't charge for very long. It does charge my phone though.

    No, I would not recommend this to a friend
    • Brand response from Energizer PowerPacks Service Team
      Posted .

      Hi EvaB,
      We’re sorry the power bank heats up quickly and doesn’t hold a charge for long. While some warmth is normal during wireless charging, excessive heat or short usage time may indicate an issue with the unit. Please contact our support team for assistance or a possible replacement:

  • Rated 5 out of 5 stars

    Great battery!

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

    Great battery for the money spent! Does it’s job adequately!

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

    Recommend

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

    Great product would recommend to anyone looking to bye one

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

    Great battery

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

    Works really well for my iPhone 16, strong magnet and stays on pretty well.

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

    Power bank

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

    This is a nice backup battery but I don’t feel like it lasts long enough

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

    Good buy!

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

    Good product, good price! Easy online purchase and store pickup!

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

    Rated 2 out of 5 stars

    Defective unit?

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

    Nice and thin, though, capacity seemed off and didn’t seem to hold a charge. Maybe defective? Exchanged for another power bank.

    No, I would not recommend this to a friend
    • Brand response from Jamal Chen
      Posted .

      Hi ROBERTG,
      We’re sorry the power bank didn’t meet your expectations and seemed to have capacity issues. It’s good you exchanged it for another model, and we appreciate your feedback—it helps us improve quality control.
      --Energizer PowerPacks Service Team

  • Rated 5 out of 5 stars

    Portable charger

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

    Awesome and very fast! Easy to use and affordable!

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    Portable charger

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

    Just really slow at charging. Also if you happen to move the phone at all the chsrger turns off. Would not recommend.

    No, I would not recommend this to a friend
    • Brand response from Energizer PowerPacks Service Team
      Posted .

      Hi Phyl,
      Sorry to hear about the slow charging and sensitivity to movement. Wireless magnetic chargers can stop charging if alignment shifts, which is common with slim designs. For a more stable experience, try using a MagSafe-compatible case or keep the phone stationary during charging. If the performance feels defective, please contact our support team for assistance: