Customers consistently note the fast charging speed and portability of the 10,000mAh SLIM METAL PowerBank. Many appreciate its overall performance and adequate battery life, with some highlighting its convenient size. However, a few customers have mentioned concerns about the strength of the magnetic connection.
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 530 reviews
Cons mentioned:
Heat dissipation
Rated 1 out of 5 stars
Piece of junk
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
The backup battery seemed like a good deal at $15 for 10,000 mah and magsafe wireless charging. Even with it being Energizer brand, the quality of it was pretty cheap looking and feeling.
The charging seemed to work just fine at first, used it maybe twice with one of the times being wireless with a magsafe case. It was really slow but seemed to work at least. Next time I went to charge wireless, the battery wasn't charging my phone. The casing of the battery backup pulled apart, as you can see in the pictures, when I took it off of my phone case. It felt hot and had a bit of a smokey smell but no visible smoke or anything like that.
I wasn't about to go plugging my phone into the USB-C port to see if that still worked. Returned it and got a refund from Best Buy minus a $5 Reward that I redeemed.
I have a Samsung Galaxy S24 Ultra and a UAG case with magsafe built into the case so not a cheap case with magnets put on it or anything like that.
Would not recommend this product and wonder if the Energizer backup batteries without wireless charging are better or not.
No, I would not recommend this to a friend
Brand response from Energizer PowerPacks Service Team
Posted .
Hi Patrick, We’re very sorry to hear about the overheating and casing issue you experienced. That’s definitely concerning and not the quality we aim to deliver. It’s good that you returned the item for safety reasons. Regarding your question, non-wireless Energizer power banks generally have fewer heat-related risks because they don’t include magnetic charging components, but performance can still vary by model. If you decide to try another, we recommend checking reviews for wired-only models to ensure reliability.
Pros mentioned:
Charging speed
Rated 3 out of 5 stars
Alright
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
Battery life could be better. Not exactly as advertised but does what it’s supposed to - charge. The MagSafe doesn’t have a strong hold or line up properly.
No, I would not recommend this to a friend
Brand response from Jamal Chen
Posted .
Hi Zach, We appreciate your feedback. Battery life can vary based on device type and usage, but we understand your concern. For the magnetic alignment and hold, ensure the phone case is MagSafe-compatible and free of metal or thick layers, as these can weaken the magnetic grip. If the issue persists or feels like a defect, please visit https://support.energizerpowerpacks.com/ for assistance with troubleshooting or replacement. --Energizer PowerPacks Service Team
Rated 5 out of 5 stars
Great box at good price
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This reviewer received promo considerations or sweepstakes entry for writing a review.
This charger does exactly what it's advertised to do.Nothing fancy or revolutionary about it.I was looking for a charger at a budget price.And this fit my need.
I would recommend this to a friend
Rated 5 out of 5 stars
Cheap Powerbank
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
I got this for 10 bucks! Love the discount and the quality
I would recommend this to a friend
Rated 5 out of 5 stars
Great Product!
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
I really like this it works for my Bluetooth, my iPhone, and my grandchildren’s android , I would recommend those to anybody.
I would recommend this to a friend
Rated 5 out of 5 stars
Energizer magnetic wireless 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.
Pretty good affordable product. I have been using a lot since I got this charger.
I would recommend this to a friend
Rated 5 out of 5 stars
Enjoying it
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
For this price of this “save” it’s really worth it.
I would recommend this to a friend
Pros mentioned:
Charging speed
Rated 2 out of 5 stars
Brocken button
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
Its fast charging just buttons broke after 3 days of using it
I would recommend this to a friend
Brand response from Energizer PowerPacks Service Team
Posted .
Hi EricM, We’re sorry the button broke after such a short time. That’s not expected for this model. Please visit our support page to arrange a replacement or repair:
--Energizer PowerPacks Service Team
Rated 2 out of 5 stars
Review for the magnetic portable
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Posted . Owned for 2 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Worked well for about two weeks and then stopped charging properly and had to constantly move it around the back of my phone to charge. Quality of the side that slaps onto the back of your phone is thin, fragile, and will bend inwards if pressure is applied.
No, I would not recommend this to a friend
Brand response from Energizer PowerPacks Service Team
Posted .
Hi DavidF, We’re sorry to hear the power bank stopped charging properly and that the magnetic side feels fragile. That’s not the experience we want for our customers. Please stop using the device and contact our support team for assistance or a replacement:
--Energizer PowerPacks Service Team
Rated 1 out of 5 stars
Do Not Buy! Expanded Batteries
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Battery was expanded right out of the box, not once but even the replacement that Best Buy tried to replace it with had an inflated battery. Do not buy!
No, I would not recommend this to a friend
Brand response from Energizer PowerPacks Service Team
Posted .
Hi Luis, Sorry to hear both units arrived with swollen batteries. That’s a serious defect and absolutely not expected. Our support team can help investigate and arrange a proper replacement or further assistance: https://support.energizerpowerpacks.com/
Rated 1 out of 5 stars
Less than 10,000 mAh
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
The battery capacity appears to be under 10,000mAh, as it was able to fully charge a 5,000mAh phone but ran out before completing the charge of another 3,000mAh phone.
No, I would not recommend this to a friend
Brand response from Jamal Chen
Posted .
Hi aCustomer, We understand your concern. The 10,000mAh rating refers to the internal battery capacity, but actual usable power is lower due to energy loss during conversion and wireless charging, which can reduce efficiency by 20–30%. If you believe your unit is underperforming beyond normal limits, please contact us at https://support.energizerpowerpacks.com/ for assistance. --Energizer PowerPacks Service Team
Pros mentioned:
Charging speed, Portability
Rated 5 out of 5 stars
So small and compact. Love it!
Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
This baby was on sale for like half price, and then I used some BestBuy Rewards and got it for like $10. It powers right thru my OtterBox Defender Pro case on my iPhone 17ProMax and charges quickly!!
I like how you can throw it into your pocket and charge while you carry without wires being attached (see photos).
So nice and convenient, I may buy two!!
I would recommend this to a friend
Pros mentioned:
Charging speed
Cons mentioned:
Heat dissipation
Rated 5 out of 5 stars
Excellent device
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
The Energizer 10,000mAh Slim Metal Magnetic Wireless Powerbank is a versatile and premium-feeling portable charger designed primarily for modern smartphone users. Its sleek metal construction provides a durable and high-quality feel compared to standard plastic models, while remaining impressively thin at just 0.62 inches.
One of its standout features is the LED display, which gives you an exact percentage of remaining power, removing the guesswork found with typical blinking indicator lights. It supports Qi2.0 and MagSafe standards, offering up to 15W wireless charging and 20W wired output via USB-C, making it fast enough to significantly top up an iPhone or Android device in about an hour.
With a 10,000mAh capacity, it can typically charge most smartphones 1.5 to 2 times. The magnetic hold is strong enough to stay attached while you use your phone or carry it in a pocket, though some users note it can get warm during extended wireless charging sessions. Overall, it’s a high-value choice for those seeking a balance of portability, style, and fast-charging capabilities.
I would recommend this to a friend
Pros mentioned:
Charging speed, Portability, Size
Rated 5 out of 5 stars
Nice compact charger
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
Nice compact unit for recharging. To use the magnetic feature you must have a cell phone case with the magnetic ring. You can also use this charger with a cord and it operates just like any other charger. Charges a phone fairly fast--not sure how much time it took, but it would probably depend on your particular phone. After charging my phone it had plenty of charge left for another device. I like the size- would easily fit in a pocket and is slim.
I would recommend this to a friend
Brand response from Jamal Chen
Posted .
Hi Gidget, we’re glad you like the compact design and magnetic feature. You’re absolutely right—the magnetic function works best with a MagSafe-compatible case, and using the USB-C cable is the fastest way to charge. The slim size makes it perfect for travel and pocket carry. If you have any questions or need tips for optimal charging, feel free to reach out at https://support.energizerpowerpacks.com/. --Energizer PowerPacks Service Team
Pros mentioned:
Charging speed, Overall performance, Portability
Rated 5 out of 5 stars
Great purchase
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Works very well and charges fast, especially with the 20W wired charging ⚡. The magnetic wireless charging is convenient and holds securely to my phone. I like the slim metal design and the LED display showing battery percentage. Easy to carry and reliable for daily use. Would recommend.
I would recommend this to a friend
Pros mentioned:
Battery life, Charging speed, Portability
Rated 5 out of 5 stars
Less bulk, fast charger.
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Charger is excellent. Fast charging with a cable, and it's not too bulky to fit in your pocket. My phone has been on 30%, and even while watching YouTube, my phone charged quickly in about an hour. I would charge the power bank every day so that it's always ready. One day I forgot to charge it and I got two full charges from the bank.
I would recommend this to a friend
Pros mentioned:
Portability
Cons mentioned:
Heat dissipation, Magnetic strength
Rated 4 out of 5 stars
Good value for money
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
compact and easy to carry on.Dual connectivity with cable or wireless but magnet not super strong. Good capacity and avergae charging speed. It does overheat a bit but no issues so far
I would recommend this to a friend
Pros mentioned:
Battery life, Charging speed, Portability
Rated 5 out of 5 stars
Great Little Power Source
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
These power banks charge up fast and hold a charge for a descent amount of time, perfect for days where you are no where near a power source and need to keep your phone charges or if the power goes out. Love the small size, not super bulky, easy to carry in your pocket.
I would recommend this to a friend
Pros mentioned:
Battery life, Charging speed, Size
Rated 5 out of 5 stars
Good product
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
Bought as a gift. They tell me they like its sleek, compact size and long lasting battery. They also says it provides very fast charging.
I would recommend this to a friend
Pros mentioned:
Charging speed
Rated 4 out of 5 stars
Good but a little confusing
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
It does charge fast - have not used it "on the road" yet. However, the magnetic charging capability (the 2nd "output") requires a special case and it appears that only applies to iPhones and not clear in the product description. It's lightweight so I will keep it for emergency use if I need to charge my phone without electricity being available. I purchased at a deep discount otherwise would probably not.