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Customer reviews

Rating 4.3 out of 5 stars with 476 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

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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 24 Showing 461-476 of 476 reviews
  • Rated 1 out of 5 stars

    Broke in seconds

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

    I do not recommend. Only had the charger for a day and the little magnet on the bottom broke off inside and stopped charging.

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

      Hi Klup2541,
      We’re sorry to hear the magnet broke so quickly. That’s definitely not the experience we want for our customers. Please reach out to our support team for assistance or a replacement:

      --Energizer PowerPacks Service Team

  • Rated 1 out of 5 stars

    Magsafe charger

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

    Doesn't support fast charging standard and the magnet is not strong enough to hold the battery securely in place

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

      Hi shokz,
      We’re sorry the power bank didn’t meet your expectations. This model supports standard Qi wireless charging and wired fast charging via USB-C, but wireless speed can be slower compared to cable charging. Magnet strength may vary depending on phone size or case type, so using a MagSafe-compatible case or no case ensures better hold. Your feedback is valuable for improving future designs.
      --Energizer PowerPacks Service Team

  • Rated 1 out of 5 stars

    Stopped working after few uses

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

    It could be my luck but the product stopped working after few uses. It’s such a waste of money.

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

      Hi AmyM,
      We’re sorry to hear the power bank stopped working after only a few uses. That’s definitely not the experience we want for our customers. Please reach out to Energizer support for assistance or a possible replacement:

      -- Energizer PowerPacks Service Team

  • Rated 1 out of 5 stars

    Poor choice.

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

    The magnet doesn't keep this on my phone AFTER I took the case off, too. Taking it back.

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

      Hi Igottagoride,
      We’re sorry the magnetic hold didn’t work even without a case. This power bank relies on MagSafe compatibility for a secure connection, so if the phone isn’t MagSafe-enabled, the magnet may not stay attached. Thank you for sharing your experience, and we understand your decision to return it.
      --Energizer PowerPacks Service Team

  • Rated 1 out of 5 stars

    Power bank failed after several charges.

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

    Bought during Black Friday sale, failed in December, only used couple times. Not good.

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

      Hi JiefenS,
      We’re sorry your power bank failed after only a few uses. This could indicate an internal battery or circuit issue. Please contact our support team for assistance or a possible replacement:

  • Rated 1 out of 5 stars

    Died within a week.

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

    It died within a week. Highly disappointed, a $15 one from Amazon is better.

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

      Hi BryanibarraM,
      We’re sorry to hear your power bank stopped working so quickly. That’s definitely not the experience we want for you. Please reach out to our support team for troubleshooting or a possible replacement:

  • Rated 1 out of 5 stars

    No go

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

    Slowest charge available. Can it be any slower?. I don’t think it’s possible.

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

      Hi Bbuyelite,
      We’re sorry the charging speed feels too slow. Wireless charging, especially via MagSafe/Qi, is generally slower than wired USB-C charging due to power transfer limitations and heat management. For the fastest performance, we recommend using the included USB-C port with a 20W adapter. If the speed is still unusually low, please contact our support team for assistance or a possible replacement:

      --Energizer PowerPacks Service Team

  • Rated 1 out of 5 stars

    Fire hazard

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

    Started to smoke as soon as I took it out of the box

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

      Hi Ljan,
      We’re very sorry to hear about your situation. This case has been escalated, and we take it very seriously.
      Please contact us through our official support page so we can assist you further:
      https://support.energizerpowerpacks.com/

  • Rated 1 out of 5 stars

    Don’t buy this

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

    Not worth the money I paid for it. I will be returning it to Best Buy.

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

      Hi Toprock,
      We’re sorry the power bank didn’t meet your expectations. We appreciate your feedback and understand your decision to return it. Your comments will help us improve future products.

  • Rated 1 out of 5 stars

    Stop charging

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

    After couple times on use just stop charging my phone

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

      Hi IsraelParra,
      We’re sorry your power bank stopped charging after only a few uses. This could indicate an internal battery or connection issue. Please contact our support team for assistance or a possible replacement:

  • Rated 1 out of 5 stars

    Returned Next Day

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

    Plugged it into the phone and within 20mins it was over heating

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

      Hi ShellBell,
      We’re sorry to hear the power bank overheated so quickly and that you had to return it. Your feedback is important and helps us improve future designs.
      --Energizer PowerPacks Service Team

  • Rated 1 out of 5 stars

    Not charging iphone

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

    It hasn’t worked at all since i got it. I have iphone 16 pro max

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

      Hi Dulce,
      Sorry for the trouble. Please ensure the power bank is fully charged and your iPhone is aligned with the magnetic charging area. Thick phone cases can block wireless charging, so try removing the case. If it still doesn’t work, contact us at https://support.energizerpowerpacks.com/ for assistance.
      --Energizer PowerPacks Service Team

  • Pros mentioned:
    Size

    Rated 5 out of 5 stars

    Excellent portable charger

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

    Very slim and compact charger. Easy to connect with no cords needed. Convenient to have as a handy backup.

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

    Power bank

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

    Great for MagSafe devices, it’s not bulky and charges fast and you barely notice it’s there. Also charges by usb c cable so almost any devices charger will charge it.

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

    Rated 5 out of 5 stars

    Cool battery to charge anything it’s pretty slim

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

    Very slim and you barely feel it on the phone just got it so I can’t say how long the charge last on the battery but so far it’s working and for the Black Friday sale price you can’t beat it!

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Rated 5 out of 5 stars

    works i use it few times no problem

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

    works, i use it few times no problem. how long can it last don't know yea....

    I would recommend this to a friend