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Customer Ratings & Reviews

Your price for this item is $11.99
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The comparable value price is $44.99

Customer reviews

Rating 4.3 out of 5 stars with 172 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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82%would recommend to a friend

Customers are saying

Customers value the Ultimate Lithium power bank for its fast charging speed and long-lasting battery life. Users appreciate its ease of use and convenient size, making it highly portable. The LCD display is also a valued feature, and some customers find the weight and price to be reasonable. Overall, customers seem to be satisfied with the product's performance.

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 9 Showing 161-172 of 172 reviews
  • Rated 1 out of 5 stars

    The user manual is HORRIBLE..

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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.

    No instructions for how to activativate charging...wont charge. Back it goes. Horrible product

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

      We’re truly sorry to hear about your experience. Your feedback is very important, and we’ll share it with our team to improve the manual and product design. If you'd like help with troubleshooting or return information, feel free to contact us at service@tennrich.com.

  • Rated 1 out of 5 stars

    Betrayal and dishonest.

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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.

    If you want to magnetically connect to your phone, this is not the product for you. An employee told me that i can magnetically connect to my phone for wirelessly charge but it wound up not being true. Best Buy, you lied to me once again.

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

      Dear valued customer, Thank you for the comment. If you have any question or concern for the product, please send the email to this address: service@energizerpowerbanks.com. They’re glad to assist you. Thank you.

  • Rated 1 out of 5 stars

    Bad do not buy

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

    Bad charger, I mcharged it al night showed 100 and then it started loosing power without being connected. Went back to 30 then 0.

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

      Dear valued customer, Thank you for the comment. If you have any question or concern for the product, please send the email to this address: service@energizerpowerbanks.com. They’re glad to assist you. Thank you.

  • Rated 1 out of 5 stars

    Defective

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

    This cord provided does not work with the charger.

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

      Dear valued customer, Thank you for the comment. If you have any question or concern for the product, please send the email to this address: service@energizerpowerbanks.com. They’re glad to assist you. Thank you.

  • Pros mentioned:
    Battery life, Lcd display

    Rated 4 out of 5 stars

    Good affordable portable charger

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

    Did the job! took this camping for a weekend and i was able to change multiple devices easily. It has a nice display to show how much % battery is left. Would recommend.

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

    Rated 1 out of 5 stars

    Save your money. Stops charging constantly.

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

    I’ve had this portable battery pack for a few months now and it’s awful. It stops charging for no reason & I have to keep unplugging and replugging it in to reset it. I used to have a Pocket Juice one but I upgraded my iPhone and the plugs changed of course so I had to get a new one. The new pocket juice charger was heavy and I like it for traveling, hiking, theme parks, etc so I wanted a light weight one plus I liked that you could just set your phone on top of this one. Lesson learned, you get what you pay for. This one was cheaper and I thought it’d work fine because it’s Energizer but I’ve been very unhappy with it. Can’t return it now but I will be going ahead and getting the Pocket Juice one because that was very reliable.

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

      Dear valued customer, Thank you for the comment. If you have any question or concern for the product, please send the email to this address: service@energizerpowerbanks.com. They’re glad to assist you. Thank you.

  • Pros mentioned:
    Charging speed

    Rated 5 out of 5 stars

    Great charger across platforms!

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

    This is a great little charger that works wirelessly with my Bose earbuds, iPhone 15 Pro, and Samsung S24 Ultra. I love that it works across platforms and charges quickly.

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

    Rated 5 out of 5 stars

    Can’t beat it!!

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

    Incredible, total lifesaver while in NYC, charged my iPhone 3 times and very very quickly.

    I would recommend this to a friend
  • Pros mentioned:
    Lcd display

    Rated 5 out of 5 stars

    Portable Battery Charger

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

    The Portable Battery Charger has met my expectations.

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

    Beware

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

    It never charged wirelessly very well. Instructions are weak. It charges phones very slowly and recharges itself very slowly. I would not buy it or any other from Energizer again.

    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 1 out of 5 stars

    Fails You When You Need It Most

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

    The whole point of a power pack is to not need to plug into a wall receptacle. This power pack would work for a while and then when I would try to use it again, it would not turn back on. If I plugged the power pack in to charge, it would work again immediately, like it was being reset. I had to plug it in several times on one amusement park trip. That is exactly what you DON'T want in a power pack.

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

      Dear valued customer, Thank you for the comment. If you have any question or concern for the product, please send the email to this address: service@energizerpowerbanks.com. We will be glad to assist you. Thank you.

  • Rated 1 out of 5 stars

    Eveready power bank for cellphone 10 mAh

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

    I bought this last week in Pensacola, charged it & used it ONE time to charge my cellphone, then it refused to be charged again. I am not in the town I bought it in & dint have my receipt with me. Wanted to have hubby take pics of receipt so i could exchange it here in PA but dont think they will exchange it here with a picture of the receipt on my phone. DONT BUY ONE!

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

      Dear valued customer,
      Sorry to have brought you a bad user experience,
      according to Best Buy's return policy, please bring your purchase receipt to the original place of purchase ASAP to apply for a return or exchange.
      If you have any other questions,
      please send the email to this address: service@energizerpowerbanks.com.
      We will be glad to assist you.
      Thank you.