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Customer Ratings & Reviews

Your price for this item is $19.99

Customer reviews

Rating 4.1 out of 5 stars with 187 reviews

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Rating by feature

  • Value

    Rating 4.3 out of 5 stars

  • Quality

    Rating 4.1 out of 5 stars

  • Ease of Use

    Rating 4.5 out of 5 stars

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80%would recommend to a friend

Customers are saying

Customers love the Ultimate Lithium power bank for its portability, overall performance, and charging speed, making it a convenient choice for on-the-go iPhone users. The compact size and lightweight design are also appreciated. However, some customers have expressed concerns about the battery life, heat dissipation during charging, and the strength of the MagSafe connection.

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 8 Showing 141-160 of 187 reviews
  • Rated 5 out of 5 stars

    Works well

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

    So far so good with this charger! Seems to work as stated.

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

    Works fast, works great.

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

    Works fast, works great. No problems so far while using it.

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

    Power Bank

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

    Haven’t had a chance to use it yet. Bought this for an upcoming vacation where there not be any WiFi available.

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

    Great price works

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

    Works great, magnetic sticks good. Cheap price worth it cant go wrong.

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

    Useful

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

    Easy to use and perfect size for space saving and good quality

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

    1 Full Charge

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

    I love it..inexpensive and it gives me 1 full charge

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

    Great charger

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

    Charge lasts for a long time. Took it on a trip and was able to charge my phone multiple times.

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

    Battery pack

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

    Very good battery pack comes through when needed def recommended

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

    Energizer Backup

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

    It does the job without hestitation. It is what it says to be and do.

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    DONT BUY THIS!

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

    Dont buy this item guys, as bad as $3 power bank from temu. Magnet is not enough strong to stick, battery life is terrible, recharging time is too long and if you are not putting this in center exactly the charging didnt continue.

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

      Hi Robi,
      We’re sorry the power bank didn’t meet your expectations regarding magnet strength, battery life, and charging alignment. This model uses MagSafe-compatible magnetic positioning, which requires precise alignment for stable charging. If the magnet feels weak or performance is poor, it may indicate a defective unit. Please contact Energizer support for assistance or a possible replacement:

      -- Energizer PowerPacks Service Team

  • Rated 1 out of 5 stars

    Literally HOT garbage.

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

    One would think that a company known for batteries would make a claim about a batteries capacity and charging wattage that was accurate. Alas, that is not the case. I have several of these type of devices. My car, work, purse, and nightstand. I picked this up because I had a gift card. It's the worst and MOST EXPENSIVE one of these I own. The wireless charging overheats, it charges my device MAYBE 13% before going dead. Again, I own several of this type of device. This entire product is a lie! All of mine are the same specs. I have three phones. All different types. It fails on all of them. I thought maybe it just wasn't meant for Android, but even iPhones don't charge well on this. Save yourself the money and spend 15 on a charger from a different web site.

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

      Dear valued customer,
      Thank you for the comment.
      We apologize for the unsatisfactory user experience we have caused you.
      If you have any other questions about the product,
      please feel free to contact us.(service@energizerpowerbanks.com)
      We will be glad to assist you.
      Thank you.

  • Rated 5 out of 5 stars

    Battery

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

    Seems like a good fit for what i need it for, our trip

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

    Magnetic part isn’t durable

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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.

    Although the portable charger is great, it charges my phone fast, and fine, the magnetic part isn’t very durable.

    No, I would not recommend this to a friend
  • Rated 5 out of 5 stars

    Very good

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

    Very good portable battery good for outdoor trips and emergency back up

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

    Just what I was looking for.

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

    Excellent product Very good autonomy and very accessible.

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

    Not satisfied

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

    It only charges 1 device and then it’s gone, not enough juice

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

      We're sorry to hear that the power bank didn't fully meet your expectations. We understand your frustration that it only provides enough power for one full charge. This is a common issue due to power conversion loss, where some energy is lost as heat during the charging process. This means the stated 5,000mAh capacity doesn't translate to 100% usable power for your device. If you feel the performance is still not what it should be, please visit our support page at https://support.energizerpowerpacks.com/ and fill out the form so we can assist you directly.

      -- Energizer PowerPacks Service Team

  • Rated 3 out of 5 stars

    It’s alright…

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

    It’s cool in a pinch but will only charge an iPhone once. Get more mAh!

    I would recommend this to a friend
    • Brand response from Jamal Chen
      Posted .

      Dear valued customer,
      Thank you for the comment.
      We apologize for the unsatisfactory user experience we have caused you.
      If you have any other questions about the product,
      please feel free to contact us.(service@energizerpowerbanks.com)
      We will be glad to assist you.
      Thank you.

  • Rated 2 out of 5 stars

    Ewww battery pack

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

    It is an okay charger but it’s more useful as a cup holder

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

      Hi SeanE,
      We’re sorry the power bank didn’t meet your expectations. It’s designed for portability and MagSafe wireless charging, but if it feels less practical for your needs, we’d love to hear your feedback to improve future designs. If you suspect any performance issues, please reach out to our support team for assistance:

      --Energizer PowerPacks Service Team

  • Rated 5 out of 5 stars

    Great power bank!

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

    This wireless charging pad charges quickly and holds a charge.

    I would recommend this to a friend
  • Rated 2 out of 5 stars

    Charger

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

    Takes long to charge and it discharges fast when charging iPhone

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

      Sorry to hear the power bank didn’t meet your expectations. Rapid discharge and slow charging can sometimes result from using lower-wattage adapters or high-drain devices. If the issue persists, it may be a defect — we recommend visiting our support page for help or a possible replacement:
      👉 https://support.energizerpowerpacks.com/