Customers are enthusiastic about the Ultimate Lithium 10,000mAh power bank's long-lasting battery life and ease of use. Many appreciate its convenient size and the high quality of its construction, along with its compatibility with various devices via multiple USB ports and USB-C connectivity. However, some customers noted that the device is relatively heavy.
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 897 reviews
Pros mentioned:
Battery life, Charging speed
Cons mentioned:
Weight
Rated 5 out of 5 stars
Lots of power
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Easy to charge with quick device charge. Multiple days of charging power with moderate device use. A little bit heavy. Would advise against carrying around with device while charging. It would be better if you were able to let it charge your device without trying to carry or use the device.
I would recommend this to a friend
Pros mentioned:
Battery life, Charging speed, Size
Rated 5 out of 5 stars
Great Charger for the Price
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
I have no complaints with this charger. It doesn't take but about 30 minutes to fully charge, and it will hold the charge for days. The portable charger is slim and fits nicely in my backpack area designed for a charger.
This review is from Energizer - Ultimate Lithium 10,000mAh 18W Fast Charge Portable Charger/Power Bank QC 3.0 & PD 3.0 for Apple, Android & USB Devices - Gray
I would recommend this to a friend
Pros mentioned:
Battery life, Ease of use, Quality
Rated 5 out of 5 stars
Energizer - Ultimate Lithium 10,000mAh 18W Fast Ch
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Posted . Owned for 4 months when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Love the brand energizer! Will continue to repurchase for my family as well. Lasts all day long and very convenient to bring everywhere I go. Nice design and very user friendly. Reliable and looks like will last a long time with me. Happy purchase!
This review is from Energizer - Ultimate Lithium 10,000mAh 18W Fast Charge Portable Charger/Power Bank QC 3.0 & PD 3.0 for Apple, Android & USB Devices - Gray
I would recommend this to a friend
Pros mentioned:
Battery life, Ease of use, Size
Rated 4 out of 5 stars
Helpful portable charger while traveling
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Light and easy to fit in my day bag (I took it with me for my 2 week European trip). Helpful to be able to charge my phone fully 3x over without recharging the portable charger.
This review is from Energizer - Ultimate Lithium 10,000mAh 18W Fast Charge Portable Charger/Power Bank QC 3.0 & PD 3.0 for Apple, Android & USB Devices - Gray
I would recommend this to a friend
Pros mentioned:
Charging speed, Ease of use, Size
Rated 5 out of 5 stars
life saver
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
lightweight, compact, fast, easy to use with simple instructions, easy to store
This review is from Energizer - Ultimate Lithium 10,000mAh 18W Fast Charge Portable Charger/Power Bank QC 3.0 & PD 3.0 for Apple, Android & USB Devices - Gray
I would recommend this to a friend
Pros mentioned:
Charging speed, Ease of use, Size
Rated 5 out of 5 stars
Fast Charging slim battery pack
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Posted . Owned for 2 months when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Fast charging and very slim. It is very easy to take around with you.
This review is from Energizer - Ultimate Lithium 10,000mAh 18W Fast Charge Portable Charger/Power Bank QC 3.0 & PD 3.0 for Apple, Android & USB Devices - Gray
I would recommend this to a friend
Pros mentioned:
Battery life, Charging speed, Ease of use
Rated 4 out of 5 stars
Won’t disappoint.
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
It’s a great product, but my main concern is that it takes a while to charge. Sure it lasts long but even with a 41w charger it’s a bit slow. I recommend this as its light, easy to travel with, feels premium, charges quickly. Reasons why I wouldn’t recommend it is because it’s kinda wide, would not take accidental drops well at all.
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 5 out of 5 stars
Powerful charger
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Posted . Owned for 1.5 years when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
This is a very versatile charger! It has a powerful and long lasting battery to recharge multiple devices! Highly recommended charger!
This review is from Energizer - Ultimate Lithium 10,000mAh 18W Fast Charge Portable Charger/Power Bank QC 3.0 & PD 3.0 for Apple, Android & USB Devices - Gray
I would recommend this to a friend
Pros mentioned:
Battery life
Cons mentioned:
Weight
Rated 5 out of 5 stars
Heavy but mighty
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Posted . Owned for 9 months when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Great power bank, perfect for long trips where you may spend extended hours away from outlets, charged my iPhone perfectly with no issues. Keep in mind it is pretty heavy considering the hours you get, so keep that in mind.
I would recommend this to a friend
Pros mentioned:
Battery life, Charging speed
Cons mentioned:
Weight
Rated 5 out of 5 stars
The most powerful power bank I have ever used
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
This thing is pretty crazy. For reference, I want to say an iPhone 11 Pro has roughly 4kmAh. This means this power bank can charge my phone about 5 times. It has 2 USB ports and one type C port. One of the USB ports is a quick charge which absolutely works. Everything works as advertised and you can tell it is high quality because it is heavy. Cons-Extremely heavy and probably not meant for light travel, from dead takes about 5 hours to charge, maybe more.
I would recommend this to a friend
Pros mentioned:
Battery life, Size
Rated 5 out of 5 stars
Portable Power
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
This power bank is amazing. It charged my iPhone and headphones and had juice left over. It is about the same size as an iPhone. It does have some weight to it. It's solid and doesn't feel cheap. I brought it to a rock festival and it survived no problem.
This review is from Energizer - Ultimate Lithium 10,000mAh 18W Fast Charge Portable Charger/Power Bank QC 3.0 & PD 3.0 for Apple, Android & USB Devices - Gray
I would recommend this to a friend
Pros mentioned:
Charging speed
Cons mentioned:
Weight
Rated 5 out of 5 stars
Super light weight, charges fast
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Posted . Owned for 1 week when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Super light weight, charges fast. Lighter than my phone. I have the older model which works just charges slow and is really heavy. This one is a keeper, would by again.
This review is from Energizer - Ultimate Lithium 10,000mAh 18W Fast Charge Portable Charger/Power Bank QC 3.0 & PD 3.0 for Apple, Android & USB Devices - Gray
I would recommend this to a friend
Pros mentioned:
Battery life, Ease of use
Rated 5 out of 5 stars
Perfect Capacity
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Love the portable charger. Easy to charge and use. Love the form factor. It is not heavy at all. I charge it every other day and it charges my phone and tablet. I wouod recommend the prouct to anyone and everyone.
This review is from Energizer - Ultimate Lithium 10,000mAh 18W Fast Charge Portable Charger/Power Bank QC 3.0 & PD 3.0 for Apple, Android & USB Devices - Gray
I would recommend this to a friend
Pros mentioned:
Ease of use
Cons mentioned:
Weight
Rated 5 out of 5 stars
Easy to Carry Value for Money
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Posted . Owned for 7 months when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
This is easiest and best decision i made on portable charger. Easy to carry especially for travelers. 20000 mAh felt heavy to carry around while charging this should be your preference for hiking or camping
This review is from Energizer - Ultimate Lithium 10,000mAh 18W Fast Charge Portable Charger/Power Bank QC 3.0 & PD 3.0 for Apple, Android & USB Devices - Gray
I would recommend this to a friend
Pros mentioned:
Battery life, Charging speed
Rated 5 out of 5 stars
One of the best batteries I have own!
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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 a little bit on the bulky site. But because i carry it in my backpack, that’s not my main concern. It has sufficient juice to go through my day and charge many of my electronic devices. It charges really quick too!
I would recommend this to a friend
Pros mentioned:
Charging speed, Size
Rated 5 out of 5 stars
Quality product
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Posted . Owned for 2 months when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Bought two of these for a trip overseas. They have been extremely reliable. Fast charge and light weight. Easily fits in pockets and is about the size of a iPhone 14 max. Glad i have them.
This review is from Energizer - Ultimate Lithium 10,000mAh 18W Fast Charge Portable Charger/Power Bank QC 3.0 & PD 3.0 for Apple, Android & USB Devices - Gray
I would recommend this to a friend
Pros mentioned:
Battery life, Charging speed
Rated 5 out of 5 stars
Absolutely love this thing.
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Posted . Owned for 2 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
This things works amazing. I used it everyday at disney world and i use it whenever im out playing pokemon go. Charges the entire time im using it. And can charge your phone multiple times on 1 charge
This review is from Energizer - Ultimate Lithium 10,000mAh 18W Fast Charge Portable Charger/Power Bank QC 3.0 & PD 3.0 for Apple, Android & USB Devices - Gray
I would recommend this to a friend
Pros mentioned:
Battery life, Charging speed
Rated 5 out of 5 stars
Power on the go
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Bought this for a trip to stay charged on the go . I normally read reviews extensively to pick the best products and the reviews i have read was right . This badboy charges up fast then charges your items just as fast . Little on heavy side but thats a quality heaviness . Holds a charge and i have had alot of uses from initial charge , mulitple phone tablets nintendo switch charges and still going . This the one to get the jobs done right
I would recommend this to a friend
Pros mentioned:
Battery life, Charging speed
Rated 5 out of 5 stars
Nice!
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Posted . Owned for 8 months when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
The energizer bunny on crack! This thing charges two phones within an hour! It lasts longer than me!
Greatest portable battery ever!
I would recommend this to a friend
Pros mentioned:
Battery life, Charging speed
Rated 5 out of 5 stars
Good Battery Charger
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Posted . Owned for 1 year when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Has worked very well over the 15 Months I have had it. Charges phone relatively fast, and am able to get at least 5 charges out of it. Does not take forever to charge it up.