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Customer Ratings & Reviews

$14.99

Customer reviews

Rating 4.4 out of 5 stars with 264 reviews

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  • Value

    Rating 4.5 out of 5 stars

  • Quality

    Rating 4.4 out of 5 stars

  • Ease of Use

    Rating 4.6 out of 5 stars

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85%would recommend to a friend

Customers are saying

Customers often highlight the MAX 5,000mAh portable battery charger for its portability and overall performance with heated clothing. Many appreciate its charging speed and battery life, as well as its convenient size and light weight. The multiple ports and helpful display are also valued features.

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 12 Showing 221-240 of 264 reviews
  • Rated 5 out of 5 stars

    Nice

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

    Nice power bank. It's working as expected no issues.

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

    Another excellent product.

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

    This is another nice and good quality product from Energizer. It's efficient and practical. Worthed having it.

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

    Portable Phone Recharger

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

    It serves its purpose but had no idea it took so long to recharge a phone with this battery.

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

      Hi BChris,
      Thanks for sharing your thoughts! This power bank delivers a steady 15W output, which is reliable but may feel slower compared to high-speed fast chargers—especially when charging from a very low battery or while using power-intensive apps. For faster results, we recommend using a fast-charge compatible cable and device together.
      --Energizer PowerPacks Service Team

  • Rated 5 out of 5 stars

    Product

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

    Helps when away and your battery runs out and you have no place to charge.

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

    Best Buys is the Best

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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.

    Best Buy is the best and more affordable place to get my electronics!!

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

    Space

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

    So much more space than older unit. And the price! Oh my!

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

    Comes in handy .

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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.

    Got this for my sister and she said it works great.

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

    Enough charge for my phone.

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

    This is not a huge power bank, but it's big enough for my phone.

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

    Phone charges

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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 quality for the price. very economical and easy to use.

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

    Good Price. You Get What You Pay for.

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

    Its ok. Nothing special here. Here is what 50 characters looks like. This device does make a mean margarita.

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

      Thanks for the honest review! We're glad to hear you feel the power bank is a good value and performs as expected. We also appreciate your creativity with the 50 characters and the margarita joke—it certainly made us smile!

      -- Energizer PowerPacks Service Team

  • Rated 3 out of 5 stars

    charger

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

    Takes too long to charge. Loses power too fast. i wish i bought another

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

      We're so sorry to hear that our power bank hasn't met your expectations. We understand how frustrating it is when a charger doesn't perform as you need it to.

      It's important to know that the time it takes to recharge the power bank depends on the wall adapter you're using. We recommend using an 18W or higher Power Delivery (PD) adapter for the fastest recharge. Also, some power is naturally lost during the transfer to your phone, but it should still provide a full charge to most smartphones.

  • Rated 1 out of 5 stars

    Bought 2 and returned them both

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

    We had powerbanks that were a few years old, kind of heavy and not holding a full charge, and it was time to replace them. I figured, newer model, more power and less weight would be perfect as we were going out of country for a week on vacation and could not risk our phones running out of charge when we were off resort. We bought these thinking they checked all the boxes, and Energizer had to make a decemt battery… right? Boy were we wrong. These were the worst. The first time we used one, it was to charge an iphone at 75% power. We were shocked that it ran the powerbank down to 30% just to charge the phone. We ended up having to charge them both after every use and use them sparingly to make sure our phones had enough charge each day while we were out exploring. We got home at 3:00 am on a monday and I was at the local Best Buy to retrun them as soon as the store opened, Just because we were so upset about how bad they were. We were so disappointed and will never buy an Energizer product again.

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

      We’re truly sorry to hear about your experience and how it impacted your vacation. That’s definitely not the level of performance or reliability we aim to deliver, and we completely understand your frustration.

      Battery capacity and performance can vary depending on the phone model, usage conditions, and charging efficiency, but what you described sounds far below expectations. We sincerely apologize and appreciate you taking the time to share this honest feedback — it will be shared with our product team for review.

      If you’d like us to look into the issue further or provide assistance, please feel free to contact us at service@tennrich.com. We’d be happy to help in any way we can.

  • Rated 3 out of 5 stars

    Ok in a pinch.

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

    Fine in a pinch and for the pricepoint, but remarkably slow charging

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

      We're sorry to hear that the charging speed of your power bank did not meet your expectations. The charging speed depends heavily on the wall adapter you're using. While we recommend an adapter with Power Delivery or Quick Charge 3.0 for the fastest results, the charging time for a power bank of this size is a characteristic of its design and is not considered a defect. We apologize for any inconvenience this may have caused.

      -- Energizer PowerPacks Service Team

  • Rated 3 out of 5 stars

    Gallero

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

    the reason i only give 3 stars is because i did not use yet thanks

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

      Thank you for your review! We understand you haven't had a chance to use the power bank yet. We hope you enjoy it when you do, and we'd love to hear your full thoughts on its performance once you've had a chance to try it out.-- Energizer PowerPacks Service Team

  • Rated 2 out of 5 stars

    Not a Fan

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

    Slow and does not hold much power. I’d find another charger.

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

      Hi Chetters,
      Sorry to hear the power bank didn’t meet your expectations for speed and capacity. The MAX 5,000mAh model is designed for light, emergency charging rather than extended use, so it may feel limited compared to higher-capacity options. If you need faster charging and longer battery life, consider a 10,000mAh or 20,000mAh model with higher wattage output.

  • Rated 2 out of 5 stars

    It’s all right for the price

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

    It’s alright but will try to buy a better one next time

    I would recommend this to a friend
    • Brand response from Energizer PowerPacks Service Team
      Posted .

      Hi Morris,
      Thanks for sharing your thoughts! The MAX 5,000mAh model is designed for light, emergency charging, so it’s a good budget option. If you’re looking for more power and faster charging next time, consider a 10,000mAh or 20,000mAh model with higher wattage output for better performance.

  • Rated 1 out of 5 stars

    DON'T BUY!!!

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

    DON'T BUY!!! This charger doesnt charge well. Ot runs out of a charge quickly and only charges a phone 50% with it having a full charge. Its not worth the price

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

      Hi Twogd2b4gotten,
      Sorry this power bank didn’t perform as you expected. Charging capacity can vary depending on the phone model—larger‑battery phones may get less than a full charge from a 5,000mAh power bank. If your unit drains unusually fast, our support team can help check or replace it:
      https://support.energizerpowerpacks.com/

  • Rated 3 out of 5 stars

    Portable battery

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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.

    Nice pocket battery it take long to charging it work well

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

    Shadow

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

    It only gives you one charge. Then you have to charge it again

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

      Thank you for your feedback. The number of charges depends on the power bank’s capacity and the device’s battery size. If you believe there is an issue with performance, please reach out to us at service@tennrich.com, and we’ll be happy to assist.

  • Rated 2 out of 5 stars

    Good as a backup charger only.

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

    its mainly a backup charger. It drains to quickly when charging a phone. It takes a awhile for it to fully charge itself. aside from that it fits great in your back pocket.

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

      We're sorry to hear that our power bank only worked as a backup charger for you. While we're glad to hear it fits great in your pocket, we understand your frustration with its performance. A 5,000mAh battery's usable power can be affected by conversion loss, making it feel like it drains quickly, and its own charging time depends heavily on the wall adapter you use. 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