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Customer Ratings & Reviews

$19.99

Customer reviews

Rating 4.5 out of 5 stars with 544 reviews

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  • Value

    Rating 4.7 out of 5 stars

  • Quality

    Rating 4.6 out of 5 stars

  • Ease of Use

    Rating 4.7 out of 5 stars

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91%would recommend to a friend

Customers are saying

Customers express satisfaction with the MAX 10,000mAh power bank's portability, charging speed comparable to wall chargers, and outstanding battery life for its cost. Its overall performance and convenient size are also well-received. The lightweight design, reasonable price, and helpful LCD display contribute to a positive user experience.

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 25 Showing 481-500 of 544 reviews
  • Rated 5 out of 5 stars

    Energizer Max Portable Charger and phone

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

    A great Battery Charger and very durable, my go to all the time

    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.

    A necessity for every day use and for backup power.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    If it’s what you need, it’s 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’s a bit heavy for a backpacking trip but at the same it’s perfect for that purpose.

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

    OK ITEM

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

    No useful instructions were provided to me. I went to customer service four times.

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

      Hi SatisfiedCustomer,
      We’re sorry to hear about the lack of instructions and the inconvenience you experienced. If you have any questions or issues with your Energizer product, you can visit our official support page for troubleshooting, guides, and warranty assistance:

  • Rated 5 out of 5 stars

    Good purchase

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

    Very useful item especially for emergencies, price is decent

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

    As advertised

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

    Have not used it yet, but it seems as advertised. The battery level indicator is a nice feature.

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

    Good power bank

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

    Product worked as advertised. It was used as a supplemental power source for a heated vest.

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

    Replacement power bank

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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.

    This was a replacement power bank for my electric coat and vest

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

    Good buy

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

    Its a nice extra phone charger to have around. Just wondering if i should have gotten something smaller. But over all its ok.

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

      Hi CeliaRomero,
      Thanks for your review! We're glad to hear the charger is serving its purpose as a backup. If you're considering something smaller, we do offer compact models with lower capacity that might suit your needs better—especially for lighter daily use or travel.
      Feel free to explore our range anytime to find the perfect fit!
      --Energizer PowerPacks Service Team

  • Rated 5 out of 5 stars

    Happy Recipients

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

    I have these as gifts to son and teen granddaughters. They were very excited to get these.

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

    Slow Charging

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

    The battery bank was slow to charge took about 5 hours to fully charge and the battery was halfway charged.

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

      Hi Connie,
      We’re sorry the charging experience didn’t meet your expectations. A full charge for a 10,000mAh power bank can take several hours depending on the power adapter used. For faster results, we recommend using a USB-C PD (Power Delivery) charger with at least 18W output. If the battery only reached halfway after 5 hours, it may indicate a performance issue.
      Please visit https://support.energizerpowerpacks.com/ so we can help troubleshoot or arrange a replacement if needed.
      --Energizer PowerPacks Service Team

  • Rated 4 out of 5 stars

    Nice

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

    Not powerful. But for this price is a good item. Recommend

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

    Disappointed

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

    It does not fit my iPhone 13 and thus can not use the charger

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

      We're sorry to hear that the charger doesn't fit your iPhone 13. Please provide the following information to our dedicated email service@tennrich.com

  • Rated 3 out of 5 stars

    Battery life is too weak

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

    The battery drained way too quickly. I plugged in my iPhone X2 for a charge, and soon after, it was completely dead.

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

      Hi QuiT,
      We’re sorry to hear the battery didn’t perform as expected. A fully charged 10,000mAh power bank should provide multiple charges for an iPhone X, so if it drained quickly or didn’t deliver power properly, the unit may be defective.
      Please visit our support page at https://support.energizerpowerpacks.com/ so we can help troubleshoot or arrange a replacement if needed.
      --Energizer PowerPacks Service Team

  • Rated 5 out of 5 stars

    Efficient and light

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

    Unexpensive and efficient. Very happy with my purchase

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

    Battery backup

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

    Nice to have back up power unit for USB charging. Works well. Would recommend.

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

    No warranty

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    Posted . Owned for 8 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This power bank malfunction after 8 months of use. I was unable to get warranty coverage because the manufacturer website does not work, emails are undeliverable. I don’t think this brand is associated with Energizer battery company. They use the same name to deceive customers.

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

      Hi Anon,
      Sorry for the issue and warranty trouble. Please contact Energizer Power Packs support for assistance: https://support.energizerpowerpacks.com/

  • Rated 5 out of 5 stars

    Amazing for USB C cabkes

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

    Very great for charging portability for USB-C to lightning cables

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

    Well made and works fine.

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

    Well made and works fine. Would recommend to a friend.

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

    Good value, light weight, convenient

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

    Light weight, convenient - good for recharging your phone when traveling.

    I would recommend this to a friend