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Customer Ratings & Reviews

Customer reviews

Rating 4.6 out of 5 stars with 78 reviews

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  • Value

    Rating 4.8 out of 5 stars

  • Quality

    Rating 4.7 out of 5 stars

  • Ease of Use

    Rating 4.7 out of 5 stars

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94%would recommend to a friend

Customers are saying

Customers appreciate the Ultimate Lithium power bank for its exceptional battery life and charging speed. Users find the device to be a reliable companion for travel and power outages, thanks to its large capacity. However, some customers have noted that the power bank is bulky and heavy. Overall, the power bank receives positive feedback for its performance.

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 1 Showing 1-20 of 78 reviews
  • Pros mentioned:
    Battery life, Charging speed
    Cons mentioned:
    Weight

    Rated 5 out of 5 stars

    Great 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 power bank really holds a lot of juice to charge up to three devices simultaneously which is very nice. I used it to charge my phone and laptop up to full charge before needing to echarge the battery when i first tried it out. It comes with an LED light as well which is a nice bonus. The battery does weigh a good amount so it may not be the best for air travel. Would reccommend though!

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

    Rated 4 out of 5 stars

    DECENT FOR MINIMALISTS

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

    TWO MAXIMUM PORTS, ONE USB AND C OUTPUT. CHARGES IN ABOUT A DAY. KEPT CHARGE IN STANDBY FOR A WEEK. PARTICULARLY DENSE AND HEAVY. DECENT TENT LIGHT.

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

    Rated 5 out of 5 stars

    High/versatile power delivery + bonus amenities!

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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 is a handy power bank for my high demands! Three charging ports with loads of power delivery - great for my needs. It's a bit heavy but that comes with the power it offers. The flashlight is a fantastic bonus - with the handy handle, this one will definitely be coming on my next camping trip!

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

    Rated 5 out of 5 stars

    Recommended

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

    Very useful product! As good as the reviews said. It fast-charges my phone, and the battery lasts a long time, enough for work or long trips.

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

    Rated 5 out of 5 stars

    IT HAS A LIGHT!!

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

    PROS: This huge charge is greattttt I love the fact I can charge basically anything and it will still have charge after charging three different devices. You can charge a chromebook if you want but yes it will charge kind of slowly but it's still convenient. It also has a built in light I love that so much. CONS: ITS very big so kind of a hassle to store somewhere and doesnt fit great in a backpack so just to make sure to buy a big bag with a bigger pocket for it.

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

    Best power bank out there

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

    I picked up this Energizer 50,000 mAh power bank for travel and emergencies, and it’s lived up to the hype in terms of capacity. This thing is a monster—it easily charged my iPhone 15 about 10-12 times, my tablet a few times, and even topped up my laptop partially, all on a single charge. The three ports (two 30W USB-C PD and one USB-A) let me charge multiple devices at once without much slowdown, and the LCD display is super handy for seeing exact battery percentage. What I like about it : • Insane battery life—up to 180 extra hours for phones, as advertised. • Fast charging with 30W PD (great for newer phones/laptops). • Built-in flashlight is a nice bonus for camping or outages. • Feels durable with the textured finish.

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

    Rated 5 out of 5 stars

    Amazing charging box!!!!

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

    It's the Best and fastest charging box and it lasts for a long time charged up. It takes a bit long to charge the box but it lasts a long time.

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

    Rated 4 out of 5 stars

    Massive 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 power bank is heavy duty and charges devices quickly. Also has a LED light on the back which can be useful. Comes attached with a carrying strap. Arrives precharged so I was able to try it right away.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life, Charging speed
    Best Buy Employee

    Rated 5 out of 5 stars

    Great camping tool

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

    Great battery life and comes with a built in emergency light charged phones and hand held devices quickly and still had left over juice to run my speaker all around amazing.

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

    Nice powerbank

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

    It has a good battery life and the light is surprisingly good honestly if you had a chose this power bank is a solid choice.(only negative is that it’s pretty heavy for a power bank)

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

    Rated 4 out of 5 stars

    LA Fire Power Outages

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

    Water and Power Keeps Turning OFF Power do to All the Lawsuits to the Power Companies So We Are having Power Outages every Time High Winds are Happening Best Investment I Did Need to Buy 1 for Every Family Member will be Buying more of this Great Brand

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

      We're glad our power bank has been a useful investment for you. If you have any questions or need further assistance in the future, don't hesitate to contact us.
      Energizer Power Bank
      Service Team

  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Not TSA Approved but Works

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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 heavy-duty charging battery and seems to work well. However, I purchased it to take on a trip but it is not TSA approved. So, I had to buy a smaller one. Buyer beware!

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

    Rated 5 out of 5 stars

    Great portable charger

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

    Massive charger, literally took just a few seconds to go from 80 percent to 100, it is super fast and a great product if you go hunting for days etc.

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

    Rated 5 out of 5 stars

    Excellent backup battery charger

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

    Excellent multipurpose battery pack charger. I can charge multiple devices at the same time.

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

    Dependable

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

    It is dependable during power outage during calamity

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

    Rated 5 out of 5 stars

    Great backup power

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

    I always have low expectations for these kind of products. Portable chargers always seem nice in theory, but never seem to perform as intended. This one on the other hand. Over performed. I can charge so many devices on a single charge with this thing. It does take awhile to charge. I recommend using the correct power cube because it will not charge if the power is too low. And will be slow too. Overall it’s a really great product for the price. Also I almost forgot to mention, it’s massive. Heavy too. Just be aware.

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

    Rated 5 out of 5 stars

    Absolutely Great

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

    This power bank truly has me amazed. Not only does it charge my iPhone 14 Pro Max 10 times without intensive load, but also is able to charge my 65 watt laptop 2.3 times fully from 0-100%. Yes, you will need a 100 watt cable but you can find great ones here. However if you do choose to use the 30 watt cable your laptop might not detect it and refuse to charge. The 30 watt is the only limit this power bank has but I prefer something that can charge at least once my laptop for college than other bigger brands that can’t deliver such. The charging to the phone is extremely fast. Again from 0-100% it takes like 35 minutes. I was astonished by it as it charged my phone 10 times meaning it used 10% of the 100% it had and has continued doing the same. I do recommend it, but always do your own research on your specific device battery.

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

    Rated 5 out of 5 stars

    BEST BUY comes through yet again

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

    Great! Much better than the old Energizer 30k mah I used to have. That thing was so SLOW and drained fast. Took a full DAY to charge from 0 after use. But only lasted probably 3-6 hours charging. But this one. Much better. Charges fast. heavy but robust. People ask me what is that a portable battery?! Haha I definitely Will get another one eventually.

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

      Hi user962125,
      We’re glad to hear the 50,000mAh power bank is a big step up from your previous one! It’s built to deliver faster charging and longer performance, even if it’s a bit heavier—it’s designed to be tough and dependable. We love that it’s turning heads, and we’d be happy to have you back for another!
      --Energizer PowerPacks Service Team

  • Pros mentioned:
    Battery life, Capacity
    Best Buy Employee

    Rated 5 out of 5 stars

    Great Product

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

    Been using this portable charger everyday since I boight it. Very large capacity. Perfect for someone woth multiple devices and doesnt always have access to an outlet.

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

    Rated 5 out of 5 stars

    Awesome Charger - Durable and Works Well!

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

    Awesome charger for the price. Keeps my cell phone and tablet charged on the go. Its a big charger but lasts long and chargers my devices fast! Easy to use and charge.

    I would recommend this to a friend
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