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Customer reviews

Rating 4.4 out of 5 stars with 103 reviews

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Rating by feature

  • Value

    Rating 4.4 out of 5 stars

  • Quality

    Rating 4.3 out of 5 stars

  • Ease of Use

    Rating 4.5 out of 5 stars

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89%would recommend to a friend

Customers are saying

Customers highly value the Ultimate Lithium portable battery charger for its exceptional charging speed and portability. Many appreciate the long-lasting battery life, allowing for days of use on a single charge. The overall performance is well-received, and the lightweight design, coupled with the helpful LCD display, adds to the positive user experience. Its compact size is also appreciated by users.

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 3 Showing 41-60 of 103 reviews
  • Pros mentioned:
    Charging speed

    Rated 5 out of 5 stars

    I highly recommend

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    Posted . Owned for 7 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This battery pack was a lifesaver when i was on my flight charges my phone, laptop, headphones, steam deck it also has wireless charging

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

      Hi SiL3nC3r666,
      Thanks for the enthusiastic recommendation! We’re thrilled the power bank came through for you during your flight. With 4 ports, fast USB-C PD, and wireless charging, it’s built to keep all your devices powered—even the demanding ones like laptops and gaming gear—without taking up much space.
      If you ever need tips to extend battery life or optimize charging speed, we’re here to help!
      --Energizer PowerPacks Service Team

  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Solves The Problem Of not Always Finding An Outlet

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

    For everyone who has ever had the problem of finding an outlet to plug a charger into this is the solution. It is also the solution if the power is ever out for a long period of time. This charger solved my problem of finding a outlet when traveling. Took it on a train trip to Riverside CA on Wednesday and used it to keep my iPhone charged. Was able to use the iPhone to take many pictures and videos without having to worry about keeping the iPhone charged.

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

    Rated 4 out of 5 stars

    Nice little charger.

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

    I've had one for several months now and so far it worked well. I mostly use it to charge my watch (using slow charge mode) it only takes about an hour and half and lasts for more than 5 charges before it goes low enough to need charging itself. Glad I got it.

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

    Rated 5 out of 5 stars

    Nice and compact

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

    Great charger for your phone and it's nice and compact fits in your pocket or purse nicely and I can charge my Android phone at least twice and still have power left over

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

    Rated 5 out of 5 stars

    Thadis

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

    Dependable for my Apple XR!! Easy to carry on the go.

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

    Rated 4 out of 5 stars

    Good product

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

    Wireless charging is super slow so im never using it, if you need a slim powerbank its ideal.

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

    Rated 4 out of 5 stars

    Great quality

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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 product and great quality. Fast charging and wireless charging works as it should.

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

    sweet product

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

    size, value, convenience and capacity are top notch

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

      Hi BlakeA
      We’re thrilled you’re enjoying the Ultimate Lithium 10,000mAh power bank! It’s great to hear the size, value, and convenience are hitting the sweet spot for you. With its fast charging and versatile ports, it’s built to keep up with your day — wherever it takes you.
      --Energizer PowerPacks Service Team

  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Always a charge for the phone

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

    I had just gone through a horrible storm where I lost power and had no way to charge my phone, pad, or lamp. This energizer saves the day for the next storm and is exactly what I need. A great buy.

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

    Rated 5 out of 5 stars

    incredibly helpful

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

    Very helpful. Allows for wireless charging if your phone supports it. Charing speed is very fast as well.

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

    Always good

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

    This is my 3rd one buying and all of them worked great for there size

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

    Rated 5 out of 5 stars

    Lilly's charger

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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 but my i phone 11 will not charge on top?

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

    Rated 3 out of 5 stars

    Phone charger

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

    Got very warm, along with phone when charging. Didn’t charge from both slots.

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

      Hi Jtechguy,
      Sorry to hear about the heating and charging issue. Wireless and fast charging can cause some warmth, but if it feels excessive or if both ports aren’t working as expected, that’s not normal. Please stop using the product and contact Energizer support for assistance or replacement:

  • Pros mentioned:
    Battery life

    Rated 4 out of 5 stars

    Swell Product

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

    Has been working really well. Long battery use. Doesnt charge devices as fast as i would like though. Still would recommend.

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

    Rated 5 out of 5 stars

    Energy anywhere

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

    Unlimited power for your mobile devices. Pretty convenient: wired, wireless. Charges as fast as my regular 20w iPhone charger.

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

    Rated 4 out of 5 stars

    Amazing

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

    Awesome product thank you Best Buy!!!! Love it! Use it daily

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

    Rated 5 out of 5 stars

    Great battiers for my security camera

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

    Last a lot longer than the regular batteries. Great value for the price.

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

    Rated 4 out of 5 stars

    Battery pack review

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

    I am able to charge my phone fully multiple times with this battery pack

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

    Rated 5 out of 5 stars

    Great portable powerbank

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

    It's good for travels you charge your phone and any qi compatible device at the same time when you're on the go

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

    Rated 5 out of 5 stars

    Fast charging - good capacity

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

    Convenient rapid charging of cell phone in car or on the go. Only downside is that it does not magnetically hold the phone in place while charging

    I would recommend this to a friend
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