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Customer reviews

Rating 4.5 out of 5 stars with 94 reviews

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  • Value

    Rating 4.6 out of 5 stars

  • Quality

    Rating 4.5 out of 5 stars

  • Ease of Use

    Rating 4.6 out of 5 stars

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89%would recommend to a friend

Customers are saying

Customers are satisfied with the Ultimate Lithium Power Bank, particularly its fast charging speed and portability. Users appreciate its overall performance and the extended battery life it provides for their devices. The power bank's size and lightweight design also contribute to its positive reception.

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 1 Showing 1-20 of 94 reviews
  • Pros mentioned:
    Battery life, Charging speed

    Rated 5 out of 5 stars

    Energizer 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.

    Excellent purchase for the price. Easy to charge, strong magnetic so I have zero worries about it falling off my phone. Holds plenty of juice to keep my devices charged when we are out and about. Highly recommend!

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

    Rated 5 out of 5 stars

    Energizer

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

    I like it a lot, it’s lightweight and helps me when my phone runs out of battery, it charges quickly.

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

    Rated 5 out of 5 stars

    Best purchase I’ve made

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

    After trying other rechargeable batteries, this is one of the purchases I don't regret. It charges up to 3 times, or maybe even more because I never let it run completely flat. My iPhone 14 charges without any issues when fully charged. I recommend this purchase

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

    Charger

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

    Very efficient and handy at my job to remain charged all night

    I would recommend this to a friend
  • Pros mentioned:
    Battery life, Charging speed, Portability

    Rated 5 out of 5 stars

    Great portable charger

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    Posted . Owned for 4 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    For $20 this charger lasts for a long time does not take long to charge up. had to go to a concert and knew I was gonna use a lot of my battery on my phone. I hooked it to this port of a charger when I got on 70% and before I left my phone was on 100 best portable charger.

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

    Rated 5 out of 5 stars

    Best rechargable battery pack on the market

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

    A super reliable battery, a great brand and really cheap compared to all the other batteries on the market. It works with the Apple Mag Case too. Perfect battery for non Apple owners but even better if you have an iPhone with a mag case. I almost bought a more expensive, much more, before I saw that Energizer is now making rechargeable batteries. This is the battery you want, iPhone or not.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life, Charging speed, Portability
    Best Buy Employee

    Rated 5 out of 5 stars

    I use it everyday

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

    Quick charge long lasting and perfect for on the go

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

    Rated 5 out of 5 stars

    Great Product

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

    This portable power bank has made being on the go so much easier. It’s easy to store when not using it and the magnetic wireless charging feature saves me the hassle of buying more cords. Would definitely recommend!

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

    Rated 4 out of 5 stars

    Really good power bank with Mag safe

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

    I think it is small,and able to charge using a power cable or mag safe!In case of an emergency,you can charge most cellphone multiple times off one charge.It is small enough to put in your pocket without taking up alot of space.

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

      Hi LongtimeBestbuyCustomer,
      Thanks for the great feedback! We're glad to hear the compact size and dual charging options—MagSafe and cable—are working well for you. It’s designed to be a reliable backup in emergencies and easy to carry wherever you go.
      If you ever need tips to maximize its performance or care, feel free to reach out!
      --Energizer PowerPacks Service Team

  • Pros mentioned:
    Charging speed, Overall performance

    Rated 5 out of 5 stars

    Great

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

    it works great! It charges quick and is light weight!

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

    Rated 5 out of 5 stars

    Works great

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

    Works great. Pocket or purse size power for your phone. Great for when you are not around power outlets to charge your phone

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

    Rated 5 out of 5 stars

    Traveling lifesaver!

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

    Does the job really well. I really like that the usb-c is both an input for charging the bank and an output for charging usb-c devices. On a full charge, it can fully restore an iphone battery, or bring an iPad up to 50%

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

    Rated 5 out of 5 stars

    Pretty good

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

    The magnet is really strong, it charges my phone pretty fast, and it lasts a long time.

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

    Rated 5 out of 5 stars

    Great 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.

    I bought two of the Energizer-Ultimate Lithium portable power bank chargers and love them. They are convienient and charge my phone very quickly with power left over withing the charger. This is a great buy!!

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

      Hi Arthur,
      We're glad to hear you're loving your PowerBanks—and buying two is a strong vote of confidence! It's great to know they’re charging your phone quickly and still holding plenty of power. That kind of efficiency and convenience is exactly what we aim for.
      Thanks for calling it a great buy—we couldn’t agree more!
      --Energizer PowerPacks Service Team

  • Pros mentioned:
    Overall performance, Portability

    Rated 5 out of 5 stars

    The sea in the pot .

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

    Small in size but big in function . Helps in emergency with no extra wire .

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

    Rated 5 out of 5 stars

    Great 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.

    Was able to charge my cell phone and my wife's cell phone from 50% to 100$ more times I expected from a 10K mAh power bank. And the ability to charge 3 devices at one time is definitely a plus. The power band recharges quickly with a 20W charger. Very pleased!

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

      Thank you so much for the great review! We're thrilled to hear that our 10,000 mAh power bank is exceeding your expectations by charging multiple devices more times than you anticipated. It's fantastic to know you're taking full advantage of the multi-port charging and quick recharging with your 20W adapter. We truly appreciate your positive feedback!

  • Pros mentioned:
    Charging speed

    Rated 5 out of 5 stars

    Great for anyone with a cell phone.

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

    I donated one to the local school for the Sr. Graduation Party. I later found out that as their name was called, several students ask if they had any more power packs. My grandchildren dropped hints about maybe Santa would bring them this power pack. My adult children and my grandchildren love and use this daily to make sure they always have power for their phone.

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

    Rated 5 out of 5 stars

    Excellent yet affordable

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

    I saw it in store for good price and I purchased one for trial, and I am satisfied. It can charge my G Power 2025 in either wired or wireless (M logo should be at the center of circle). It can charge up to 2 times with wired mode (wireless disabled but you still can attach on the phone with supported case for convenience). Recommended but you need to have at least 60 watts short cable.

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

      Hi mingkee,
      We're glad to hear you're satisfied with the Energizer Ultimate Lithium 10,000mAh Wireless Power Bank! It’s great that both wired and wireless charging worked well with your G Power 2025. You're absolutely right—the "M" logo marks the optimal wireless charging spot, and using a supported case makes alignment even easier.
      Just a quick note: while the power bank supports up to 37.5W total output, each port has its own limit—USB-C PD delivers up to 20W, and the wireless pad up to 15W. For best performance, using a high-quality short cable rated at 60W or higher is a smart move, especially for fast charging.
      Thanks for the thoughtful recommendation!
      --Energizer PowerPacks Service Team

  • Pros mentioned:
    Battery life, Size

    Rated 5 out of 5 stars

    Great powerbank.

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

    Great specs for the price and small form factor. Lasted longer than expected powering arduino controlled leds.

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

    Rated 5 out of 5 stars

    Best light weight charged

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

    Love how light weight it is and yet performs exceptionally well.

    I would recommend this to a friend
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