48-Hour Flash SaleEnds Tuesday. Limited quantities. No rainchecks.Shop now

Skip to contentGo to Product SearchGo to Footer
Main Content

Customer Ratings & Reviews

No content
  • Front. Energizer - MAX 15,000mAh Ultra-Slim High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black.
  • Alt View 1. Energizer - MAX 15,000mAh Ultra-Slim High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black.
  • Alt View 11. Energizer - MAX 15,000mAh Ultra-Slim High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black.
  • Alt View 12. Energizer - MAX 15,000mAh Ultra-Slim High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black.
  • Alt View 14. Energizer - MAX 15,000mAh Ultra-Slim High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black.
  • Alt View 15. Energizer - MAX 15,000mAh Ultra-Slim High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black.
  • Alt View 16. Energizer - MAX 15,000mAh Ultra-Slim High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black.
  • Alt View 17. Energizer - MAX 15,000mAh Ultra-Slim High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black.
  • Alt View 18. Energizer - MAX 15,000mAh Ultra-Slim High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black.
  • Alt View 19. Energizer - MAX 15,000mAh Ultra-Slim High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black.
  • Alt View 20. Energizer - MAX 15,000mAh Ultra-Slim High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black.
  • Alt View 21. Energizer - MAX 15,000mAh Ultra-Slim High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black.
  • Alt View 22. Energizer - MAX 15,000mAh Ultra-Slim High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black.
  • Energizer 15,000mAh Ultra-Slim video 1 minutes 12 seconds

Energizer - MAX 15,000mAh Ultra-Slim High Speed Universal Portable Charger for Apple, Android, Google, Samsung & USB Enabled Devices - Black

Model:
UE15044
SKU:
6412342
Highly rated by customers for:
Your price for this item is $38.99
Clearance
The comparable value price is $44.99

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 74 Showing 1,461-1,480 of 2,516 reviews
  • Pros mentioned:
    Ease of use

    Portable power bank

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

    Amazing product easy to use and a lifesaver def recommend

    This review is from Energizer - MAX 5,000mAh Ultra-Slim, 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

    You need this for your heated vest!

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

    Long lasting. I bought this for my heated vest and it lasts about 6-7 hours.

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

    Great product

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

    Great purchase I charge my phone and the packs battery barely goes down

    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

    Happy I purchased!

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

    Product worked great! I was able to easily use the charger. Happy I purchased!

    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

    Life Saver

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

    Worked great came in handy when we were at Disneyland.

    This review is from Energizer - MAX 5,000mAh Ultra-Slim, 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

    Good quality & price

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

    This is a good power bank and was very helpful keeping our phones charged during a power outage.

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

    Perfect product

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

    My battery back up for my phone works great and I loved the price

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

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

    Great Portable Battery

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

    Compact, good price, and easy to use. Using a usb micro and usb type c is also a plus.

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

    I would recommend this to a friend

  • No problems

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

    Great price and its a solid Charger!!! handles all my basic charging needs with no problems

    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

  • Great price

    |
    |
    Posted . Owned for 5 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great power bank. Takes forever to charge though. Comes in handy for it’s nice and slim design

    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:
    Charging speed

    Trini

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

    Work great charge fast I would recommend it if your need to charge up quick

    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

    I love this Device!!!

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

    This is a good device to have you can charge your phone to it for days anywhere you go.

    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

    Great

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

    It’s good portable charger that I needed to carry and to charge my phone when my battery goes low

    This review is from Energizer - MAX 5,000mAh Ultra-Slim, 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

    Great charger

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

    I love it, it charges my phone beautifully and it lasts a good amount of time

    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
  • Pros mentioned:
    Battery life

    10/10

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

    Works very well! Excellent battery life! Perfect for vacations

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

    Greach charger for anyone

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

    Great Gift for a teenager. Get multiple charges of your phone

    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
  • Pros mentioned:
    Battery life

    It is charger phone

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

    It is charger phone I like it better battery life

    This review is from Energizer - MAX 5,000mAh Ultra-Slim, 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

    Portable charger

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

    I love it definitely comes in handy on road trips especially for my son who has 5 Ipads

    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
  • Pros mentioned:
    Battery life

    Best

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

    this charger 100% the best . I use it every time I travel and use it for 5 hours, love it

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

    portable charger

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

    Excellent product, we use it when we are on the road trip and a charge our devices very quickly

    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
Page 74, Showing 1,461-1,480 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.