Appliances Memorial Day SaleFree delivery. Ends 6/3. Terms apply.Shop now

Skip to contentGo to Product Search
Main Content

Customer Ratings & Reviews

No content
  • Front. Energizer - MAX 5,000mAh Ultra-Slim, High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black.
  • Alt View 1. Energizer - MAX 5,000mAh Ultra-Slim, High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black.
  • Alt View 12. Energizer - MAX 5,000mAh Ultra-Slim, High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black.
  • Alt View 13. Energizer - MAX 5,000mAh Ultra-Slim, High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black.
  • Alt View 14. Energizer - MAX 5,000mAh Ultra-Slim, High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black.
  • Alt View 15. Energizer - MAX 5,000mAh Ultra-Slim, High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black.
  • Alt View 16. Energizer - MAX 5,000mAh Ultra-Slim, High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black.
  • Alt View 17. Energizer - MAX 5,000mAh Ultra-Slim, High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black.
  • Alt View 18. Energizer - MAX 5,000mAh Ultra-Slim, High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black.
  • Alt View 19. Energizer - MAX 5,000mAh Ultra-Slim, High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black.
  • Alt View 20. Energizer - MAX 5,000mAh Ultra-Slim, High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black.
  • Alt View 21. Energizer - MAX 5,000mAh Ultra-Slim, High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black.
  • Alt View 22. Energizer - MAX 5,000mAh Ultra-Slim, High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black.
  • Energizer 5,000mAh Ultra-Slim video 1 minutes 05 seconds

Energizer - MAX 5,000mAh Ultra-Slim, High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black

Model:
UE5044
SKU:
6412337
Highly rated by customers for:
Loading...

Customer reviews

Rating 4.4 out of 5 stars with 2516 reviews

Rating Filter

Rating by feature

  • Value

    Rating 4.4 out of 5 stars

  • Quality

    Rating 4.4 out of 5 stars

  • Ease of Use

    Rating 4.5 out of 5 stars

Pros mentioned filter

Cons mentioned filter

86%would recommend to a friend

Customers are saying

Customers often highlight the long battery life and compact size of the MAX 15,000mAh portable charger as key strengths, also praising its ease of use and lightweight design. Positive feedback also mentions the charger's competitive price and reliable performance. However, some users reported compatibility issues and problems with the USB-C port.

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 20 Showing 381-400 of 2,516 reviews
  • Pros mentioned:
    Battery life

    Good back up battery

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

    Did it’s job when the power went out and on a trip to the beach!

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

    Great buy

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

    this is a great power bank, I still have it and it works exceptionally.

    This review is from Energizer - MAX 20,000mAh High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black

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

    Works well

    |
    |
    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works well. Lasted for seveal years. Kind of heavy.

    This review is from Energizer - MAX 20,000mAh High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Does it's job. Easy to use

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

    Very straight-forward. Does it's job and very easy to use

    I would recommend this to a friend

  • Noice

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

    Very satisfied with the product! Works well and for a good price.

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

    Bill S

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

    Keeps my iPhone or headphones charged for hours. Great item

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

    Great size external battery

    |
    |
    Posted . Owned for 9 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The great external lightweight battery. Great product to keep in purse

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

    Best Buy customer

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

    I was impressed with the speed in which it charged up my items

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

    power bank

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

    Best of the best energizer in the market to help you keep energy all day

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Ms

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

    Very great and useful garget for the road and traveling.

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

    Works like a charm

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

    I purchased this charger for a specific project, to power a portable selfie-light, with USB connection. Works great. Charges quickly (relatively), and sustained charge throughout the project. LED indicator light relieve anxiety about running out of juice. Size and weight allowed me to slip battery pack in my pocket so I could move around freely.

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

    I love ❤️ my portable battery charger

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

    I love ❤️❤️❤️❤️❤️❤️❤️❤️❤️ this it charges my phone really FAST.

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

    Meets Expectations

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

    Perfect for times when away from a traditional charging station.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Awesome

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

    So convienent and easy to use. Great item to carry at all times

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

    Perfect

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

    Slim, gets the job done and it was cheap. Sent the link to friends

    I would recommend this to a friend

  • Great Product

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

    This is a great product for the price. It works very well.

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

    Love it !

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

    Works good and love the size a lot thinner than my old one

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

    A complete pain to charge itself between uses.

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

    When there's juice in it, this thing can charge my iPhone 8 pretty quickly and it is extremely portable/easy to store. Charging between uses, though, is a nightmare. It comes with a charging cable with a USB at the end, but not actual plug for it to go into. So I have to balance it on my PC tower to charge it, which takes a pretty long time. I tried using an Apple charger adapter and that was a terrible, terrible idea: DO NOT DO THAT. It's not intended by the manufacturer and the adapter itself heated up so much, I'm kind of terrified by what would have happened if I left it charging to run an errand.

    This review is from Energizer - MAX 10,000mAh Ultra-Slim High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black

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

      We apologize for the issue you are having with this product, please reach out to us at service@energizerpowerbanks.com and we will get a new unit to you immediately.

  • Pros mentioned:
    Size

    Love it

    |
    |
    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Charges my phone fully and is slim and fits in my bag

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

    Great for charging phones and other small devices.

    |
    |
    Posted . Owned for more than 2 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Perfect for charging smaller devices during an outage.

    This review is from Energizer - MAX 10,000mAh Ultra-Slim High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black

    I would recommend this to a friend
Page 20, Showing 381-400 of 2,516 reviews
Sign in or Create Account

Get the latest deals and more.

Best Buy appLearn more
Share on YouTubeShare on InstagramShare on TikTokShare on FacebookShare on PinterestShare on X
Best Buy Canada
AccessibilityTerms & ConditionsPrivacyInterest-Based AdsState Privacy RightsHealth Data PrivacyDo Not Sell/Share My Personal InformationLimit Use of My Sensitive Personal InformationTargeted Advertising Opt OutCA Supply Chain Transparency Act
In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.