Customers enjoy the Ultimate Lithium power bank for its fast charging speed, especially the wireless charging feature, and long battery life. Many appreciate its portability and overall performance, finding the LCD display helpful for tracking battery life. While the size and port count are also seen as positives, some customers find the weight to be a drawback. The price offers great peace of mind.
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 2 Showing 21-40 of 170 reviews
Pros mentioned:
Battery life, Charging speed
Cons mentioned:
Weight
Rated 5 out of 5 stars
Handy Little Gadget
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
This sure is a handy little gadget to have around, it charges easily with a type c cable, and it holds the charge well. As with any battery type device, especially a lithium battery, it gets warm when you charge it so pay attention to what you set it upon when you charge it. It has a bit of weight so it's not something you will carry in your pocket but if you carry a briefcase, purse, or backpack just carry it in that. When you are not around a power source this will be a welcomed device.
I would recommend this to a friend
Pros mentioned:
Charging speed, Overall performance
Rated 4 out of 5 stars
good for the price
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Posted . Owned for 2 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
It works good for the price i got it for on deal of the day, if it was full price probably return it. The fast charging wireless has to be on a certain way, if not it will charge slowly. the wired part works great fast charge,
I would recommend this to a friend
Pros mentioned:
Portability
Rated 4 out of 5 stars
Reliable.
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
It is very reliable, I like how it has the normal USB port and a USB C port so pretty much anything is compatible with this, the wireless feature I don’t use as much but yeah it takes a little longer for wireless charging.
I would recommend this to a friend
Pros mentioned:
Charging speed, Overall performance, Portability
Rated 5 out of 5 stars
Great product
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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 works great. I like that it is fairly compact and charges wirelessly. It is a bit heavier that I expected, but definitely portable enough.
I would recommend this to a friend
Pros mentioned:
Battery life, Portability
Rated 4 out of 5 stars
Great portable charger, quick device charging
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Posted . Owned for 3 months when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
This is a great product but i think it could be slightly cheaper. Really durable and holds chatge for a while. I was able to chatge my phone 4-5 times plus my laptop before needing to recharge the battery. The only issue is that it takes a few hours to get the bank back to 100 and you need a specific wattage to get it to recharge. If you can get this for $30-40 definitely purchase!
I would recommend this to a friend
Brand response from Jamal Chen
Posted .
Hi AntonioB, Thanks for the great review! We're glad to hear the Ultimate Lithium 20,000mAh power bank is keeping up with your devices and delivering solid performance. Being able to charge your phone multiple times and even your laptop is exactly what this high-capacity model is built for. You're absolutely right—the recharge time can be long if you're not using a high-wattage adapter. For best results, we recommend using a USB-C PD charger with at least 20W output to speed things up. And yes, if you spot this at $30–$40, it's definitely a steal! --Energizer PowerPacks Service Team
Pros mentioned:
Battery life, Charging speed, Overall performance
Rated 5 out of 5 stars
Great battery charger
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
very good product. It does the trick of charging my wireless charging devices. Very easy to use. Had enough battery power to charge my items day one.
I would recommend this to a friend
Pros mentioned:
Battery life
Cons mentioned:
Weight
Rated 3 out of 5 stars
Decent battery but slow wireless charging
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Posted . Owned for 4 months when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
I bought this power bank mainly for travel, and overall it works okay but not great. The wireless charging is slow and sometimes doesn’t connect properly unless I adjust the phone position multiple times. The wired USB-C PD charging works better but still doesn’t feel as fast as advertised. The battery capacity is good and it can charge my phone a couple of times, but the unit is a bit heavier than I expected. The LCD display is helpful, but overall performance is just average for the price.
I would recommend this to a friend
Brand response from Jamal Chen
Posted .
Hi SSrivastava, thank you for sharing your experience. Wireless charging can be slower and require precise alignment compared to wired PD charging, but it should still perform reliably. If the speed feels much lower than expected, the unit may need inspection. Please visit https://support.energizerpowerpacks.com/ so we can assist with troubleshooting or replacement. --Energizer PowerPacks Service Team
Pros mentioned:
Battery life, Portability
Rated 5 out of 5 stars
Perfect for trips!
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
We needed it for our trip to Japan as our constant use of our phones for navigating and video taking drained our batteries fast. Perfect for our family as this backup held a lot of reserves and charged our phones fast. You need to reload it during the night and carry it in a backpack. Just have the wire hang out of the bag and plug the phone while on the move. Perfect for the main trip navigator…..which was me.
I would recommend this to a friend
Pros mentioned:
Battery life, Charging speed, Portability
Rated 5 out of 5 stars
Great product
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
Durable, fast charging works great. Plenty of battery for multiple charges.
I would recommend this to a friend
Pros mentioned:
Battery life, Portability
Rated 5 out of 5 stars
Apparently waterproof?
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
I bought this initially to use at a music festival (it worked fantastically, charged my phone from 20 to 90 5-6 times) but now i use it on my day to day life. My son descided to chuck it in the pool the other day and its still chuggin along! I will be purchasing a second just to have a back up back up battery (and i plan to go to more festivals)
I would recommend this to a friend
Pros mentioned:
Battery life
Cons mentioned:
Weight
Rated 5 out of 5 stars
I got power for hours
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Love this little device when .when my devices dies i can charge mines and two other people and i still have leftover charge on the battery. Definitely do recommend to buy. Charge last a very long time a litthle bulky but i don't mind.
I would recommend this to a friend
Pros mentioned:
Battery life, Portability
Rated 5 out of 5 stars
Stellar Product
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
Great product for the office. Hold charge and is very portable!
I would recommend this to a friend
Rated 4 out of 5 stars
Good charger, a bit inconvenient
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Posted . Owned for 8 months when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
I like this portable charger very much and use it often. I can get a couple full charges of my iPhone 13 out of it before I have to recharge it. My biggest gripes have to do with the size and the functionality.
The charger is quite bulky and it doesn't fit in my pocket, so normally I have to carry around a bag to keep it with me. Obviously it’s more portable than a chord and a brick, but it could still be a bit more convenient.
It says that it has wireless charging, but honestly I’ve never had much luck. The charger is slippery and rounded, so the phone doesn’t stay on it. It overheats very easily and will randomly stop charging. Overall I like this product and use it a lot, but if you are looking for something more convenient and wireless, I would get a different product.
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 5 out of 5 stars
Never worry about loosing phone battery
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
Wow! What a great product! I have used this on numerous occasions when our phones were low on battery and we were able to charge both phones quickly, and still had 83% battery left. Once charged, it stays charged until you use it again. Great price for peace of mind. Now, I always carry it with me when I leave the house!
I would recommend this to a friend
Pros mentioned:
Battery life, Portability
Rated 4 out of 5 stars
Battery Adan’s
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Posted . Owned for 4 months when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Good portal baterías for my divices and save my baterías life
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 5 out of 5 stars
Great power bank for the money
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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 very good power bank. I am able to fully charge my iPhone 16 pro max 4 times with it. The size is not bad either
I would recommend this to a friend
Pros mentioned:
Portability
Rated 5 out of 5 stars
Excellent purchase
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
It was a last minute purchase due to needing a back up charger immediately. I had no idea it would charge all my devices at once and its easy to carry in my backpack or large bag.
I would recommend this to a friend
Pros mentioned:
Battery life, Charging speed
Rated 5 out of 5 stars
Very useful and needed
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
I got this purchase for my uncle. He absolutely loves it ! It is very useful to him as it charges fast and the battery itself does not drain so quickly. I will be getting some for other relatives.
I would recommend this to a friend
Pros mentioned:
Charging speed
Rated 4 out of 5 stars
Great portable charger
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
The charger brings your phone to full charge quickly even if the battery is very low. It is a little bulky/heavy but not as large as other fast chargers. Excellent value for the money would highly recommend!
I would recommend this to a friend
Brand response from Jamal Chen
Posted .
Hi HollyH, We’re thrilled to hear the charger is delivering fast and reliable performance for you! While its larger capacity adds a bit of weight, it’s great to know it still feels more compact than other fast chargers. Thanks so much for the recommendation! --Energizer PowerPacks Service Team
Pros mentioned:
Battery life, Charging speed
Rated 5 out of 5 stars
Fantastic Battery Bank
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Posted . Owned for 1 week when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Fantastic battery charger this had kept my phone topped off during my recent trip. The battery Bank charges relatively quickly so it's ready for the next day.