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Customer Ratings & Reviews

Customer reviews

Rating 4.7 out of 5 stars with 371 reviews

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  • Value

    Rating 4.7 out of 5 stars

  • Quality

    Rating 4.7 out of 5 stars

  • Ease of Use

    Rating 4.8 out of 5 stars

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92%would recommend to a friend

Customers are saying

Customers often highlight the MAX 20,000mAh power bank's fast charging speed and impressive battery life. Its overall performance and portability are also appreciated by users. However, some customers find the power bank to be heavier and larger than expected.

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 3 Showing 41-60 of 371 reviews
  • Pros mentioned:
    Battery life, Portability

    Rated 5 out of 5 stars

    Reliable Lifesaver on the Go!

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

    I recently bought this power bank, and it has been an absolute game-changer for my travels and daily use. It charges my phone 2–3 times on a single charge and does so quickly. The compact size makes it easy to carry in my bag or pocket, and it feels sturdy and well-built. I also love the LED indicators that show the battery level. It’s great for road trips, flights, or just getting through a long workday without hunting for an outlet. Definitely a must-have for anyone who relies heavily on their phone.

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

      Dear Yashwant,

      Thank you for your wonderful review! We're thrilled to hear that our 20,000mAh power bank has been a "lifesaver" for your travels and daily life. It's fantastic to know that you appreciate its quick charging, portability, and sturdy design. We're so glad our product has become a reliable part of your routine!

      -- Energizer PowerPacks Service Team

  • Pros mentioned:
    Battery life, Port count

    Rated 5 out of 5 stars

    Good battery

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

    I wanted/needed an external power source with more USB-C and fewer USB-A. Also, I wanted 20,000mAh (not 10,000mAh). This charger provides 2 USB-C and 1 USB-A. So far, so good.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life, Port count
    Cons mentioned:
    Size

    Rated 5 out of 5 stars

    Convenient

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

    I love that I can charge multiple devices at once. The charge for the battery lasts me a long while, but I may not use it as much as the average person. The size is a little bigger than I would like but it still fits nicely in my small backpack.

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

    Rated 4 out of 5 stars

    Power bank

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

    This bank is great for charging phones when on the go and no outlets are available and it's also handy to have if you ever have a power outage at home. The only thing is it's a bit big and bulky.

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

    Rated 5 out of 5 stars

    Tough, reliable, functional, and on the heavy side

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

    Thie portable charger seems to have the rated capacity (unlike some others) and charges my devices quickly with a couple of port options (USB-A and USB-C). Even when cold it seems to work great. My only complaint would be the weight of this thing. It feels like a brick. It is great for the car, but I have another 20k mAh charger that is noticeably lighter that I carry in my backpack. To be fair, the lighter charger doesn't seem to have the same capacity this one does, but the weight does make a difference for me.

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

    Rated 5 out of 5 stars

    great battery life

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

    Long battery life. I got this for my friend, and he loves it and you can plug more then one more phone in it at once

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

    Rated 5 out of 5 stars

    Finally!

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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 purchased so many charger banks for trips and things that literally work for a day or dont work at all. I came across this one and decided to give it a try as the reviews looked promising. When i went in store to pick it up, the sales associate said its the only one he will use and told me how he uses it. I have had time to use it now and it has been great! You can even charge multiple devices with it at the same time. We charged up 3 iphones one day and it still had lots of hours left.

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

    Rated 5 out of 5 stars

    Great, pow.\n ER source.

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

    Great-Power stores to have on the goal. Small enough to carry with you everywhere.\n Powers up my phone very quickly.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life, Charging speed, Overall performance

    Rated 5 out of 5 stars

    Energizer battery is great

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

    This external battery is easy to use, holds a charge well, and charges my phone and laptop quickly when I need a boost away from a plug. Very good product

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

    Rated 5 out of 5 stars

    Great

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

    20,000 mAh, great to charge everything you need. It's great to use with a USB light when the power goes out.

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

    Rated 5 out of 5 stars

    Energizer Max Power Bank

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

    Great for charging and overall back-up when electric is not available, perfect size...not to big or heavy!

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

    Rated 5 out of 5 stars

    Amazing

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

    It works amazing and has a long battery life as well. it works great with your iphone charge.

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

    Rated 5 out of 5 stars

    Quick charge in and out

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

    Great product, a bit too heavy but unfortunately most are that are fast charging. Exactly what I needed

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

    Rated 5 out of 5 stars

    Much appreciated

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

    I purchased this for my son for Christmas at his request. He takes it everywhere and says it’s the best gift he’s received. He showed my son-in-law who agreed how helpful and practical it is especially since he travels and cannot always get to a charger for his phone or other electronic devices. So, I ordered 4 more, one for each member of the family. I myself am not savvy about electronics but they seem to like it so I say it must be a good thing.

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

    Rated 5 out of 5 stars

    Very helpful

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

    Very helpful battery and was helpful when we was on vacation i recommend 100% also is a fast charger so when you have a emergency takes 3 minutes to give powers to your devices

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

    Rated 5 out of 5 stars

    Nice product

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

    Great power bank. Fair price. Nice design. Charging phone and keep it cool

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

    Rated 5 out of 5 stars

    Energizer 20k Amp Power Bank

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

    Great power bank that is very powerful and charges fast. It has an LCD display that shows how much power is remaining. Only thing I would say is it's a bit bulky so keep that in mind.

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

    Rated 4 out of 5 stars

    Charger works great

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

    Works great but takes longer to recharge than usual. It runs my heating pad more than twice as long as my other 10000 charger.

    I would recommend this to a friend
  • Cons mentioned:
    Size, Weight

    Rated 4 out of 5 stars

    Bulky Power Bank

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

    This power bank does the job but it is heavy and bulky. Maybe not the best to take in your backpack because it adds a lot of weight. However, if you’re just using it at home to charge your phone, I’d recommend it.

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

      Hi Chad,
      Thanks for sharing your thoughts! A 20,000mAh power bank is designed for extended charging, so the larger size and weight are normal for this capacity. It’s a great option for home or stationary use, as you mentioned. For portability, a smaller-capacity model like 10,000mAh might be more convenient.
      --Energizer PowerPacks Service Team

  • Pros mentioned:
    Charging speed, Overall performance

    Rated 5 out of 5 stars

    very useful

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

    Needed a portable charger to for trips because not all public chargers are available, so i decided to get one of my own and not worried about finding a public charging station for my electronical devices. The product is very good and it can charge my phone, my buds and my tablet and still have charge left.

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

      Dear Pablo,

      Thank you for your review! We're happy to hear that our power bank has provided you with the peace of mind you were looking for on your trips. It's great to know that the 20,000mAh capacity is enough to keep your phone, earbuds, and tablet charged with power still left over.

      That's exactly the kind of reliable backup we designed it to be!

      -- Energizer PowerPacks Service Team

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