Skip to contentGo to Product Search
Main Content

Customer Ratings & Reviews

$16.99
Save $13
The comparable value is $29.99

Customer reviews

Rating 4.3 out of 5 stars with 475 reviews

Rating Filter

Rating by feature

  • Value

    Rating 4.5 out of 5 stars

  • Quality

    Rating 4.2 out of 5 stars

  • Ease of Use

    Rating 4.6 out of 5 stars

Pros mentioned filter

Cons mentioned filter

83%would recommend to a friend

Customers are saying

Customers are pleased with the charging speed, portability, and overall performance of the 5,000mAh SLIM METAL 20W Magnetic Wireless PowerBank. Users appreciate its convenient size and lightweight design for on-the-go charging. However, some customers have noted that the device tends to heat up during use, and a few desire a stronger magnetic connection and longer battery life.

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 19 Showing 361-380 of 475 reviews
  • Cons mentioned:
    Heat dissipation

    Rated 3 out of 5 stars

    Okay charger

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

    Gets extremely hot and charges slow. It does the job though.

    I would recommend this to a friend
    • Brand response from Energizer PowerPacks Service Team
      Posted .

      Hi Ethan,
      Sorry to hear about the heat and slow charging. Wireless charging can generate some warmth, but if it becomes extremely hot, please stop using the device and contact our support team for assistance or replacement:

  • Rated 3 out of 5 stars

    Magnet un-glued??

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

    I have had this charger for about a month. It gets the job done but I wonder about its longevity. It makes noises when I shake the charger but goes away when it’s attached to the phone. I’m assuming the magnet is loose? I’m not sure

    No, I would not recommend this to a friend
    • Brand response from Energizer PowerPacks Service Team
      Posted .

      Hi Yessss,
      We’re sorry to hear about your experience. Please contact us through our support page so we can help you directly:
      https://support.energizerpowerpacks.com/

  • Rated 5 out of 5 stars

    works as expected

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

    Works well with magsafe mobile cases. Got it in an offer, so worth it.

    I would recommend this to a friend
  • Cons mentioned:
    Heat dissipation

    Rated 3 out of 5 stars

    Does the job but keep an eye on it.

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

    Not really a fast charger and it emits heat that's alarming.

    No, I would not recommend this to a friend
    • Brand response from Energizer PowerPacks Service Team
      Posted .

      Hi jerrydon6,
      Thanks for sharing your experience. Wireless magnetic charging can feel slower than wired charging, and some heat is normal during high-power transfer. However, if the heat seems excessive or unsafe, please stop using the device and contact our support team for assistance:

  • Rated 5 out of 5 stars

    Wireless charger

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

    Quick charging on the go with no cables in the way

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    Good with limitations

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

    The unit works ok. It does charge devices. However the output of the USB-C connection is supposed to be 5 - 10 Volts. I recorded an output range of 1.8 - 2.2 Volts. Well below manufacturer range. Because of the low voltage the unit was unable to power my device and will need to be returned.

    I would recommend this to a friend
    • Brand response from Energizer PowerPacks Service Team
      Posted .

      Hi ContractorDad,

      I’m sorry the power bank didn’t meet expectations and that you ended up needing to return it. Based on your experience, it’s clear the unit wasn’t performing as it should, and I understand how frustrating that can be. We’ll be sharing your feedback with our internal team for review so we can work on improving future products.

  • Rated 5 out of 5 stars

    Fast Charging

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

    Compact and affordable with wireless charging and magnetic alignment — great if you want something easy to carry

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    Decent charger for emergencies

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

    Great if on sale but charges slowly and runs out of juice quickly. If your phone is about to die and you’re out and about this is perfect since it uses the mag safe attachment. You can still use your phone while walking around.

    I would recommend this to a friend
    • Brand response from Energizer PowerPacks Service Team
      Posted .

      Hi AntonioB,
      Glad it’s been useful for quick top‑ups on the go. Smaller 5,000mAh power banks are great for emergencies but do run out faster, and wireless charging is naturally slower than wired. The MagSafe attachment definitely helps with convenience while moving around.

  • Rated 5 out of 5 stars

    Great portable charger

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

    This thing is incredible convenient, I like the fact that it’s MagSafe of course but I also like how thin it is.. is literally perfect and I’m loving it

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

    Rated 3 out of 5 stars

    Good enough

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

    Magnet isn't strong. Falls off too easy. But it charges.

    No, I would not recommend this to a friend
    • Brand response from Energizer PowerPacks Service Team
      Posted .

      Hi BriW,
      Thanks for sharing your thoughts! The slim design of this power bank can make the magnet feel weaker compared to thicker MagSafe chargers. For a more secure hold, try using a MagSafe-compatible case or keep the phone stationary during charging.

  • Rated 5 out of 5 stars

    Great charger

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

    Great charging and holds charge for quite a qhile. Would definitely recommend purchasing again!

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

    Great fast charging power bank

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

    Works great. Once the power bank is charged, it gives the phone a quick charge. So easy to use and mag safe does not burn or overheat my phone. Will get another for backup and travel

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

    Charger

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

    It seemed ok but it wasn't what I was really looking for.

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

    Great charger

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

    Great charger thin and gave me a full charge recently went to Hawaii kept my phone charged the whole fight well I watch movies.

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

    Recommended

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

    Excellent product for a low price, brand knowed by everybody, the delivery was very fast and now no problems with the charge of my iPhone

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

    Awesome battery pack

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

    Nice battery pack to travel with and to keep in a go bag.

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

    Great charger for extra juice

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

    Great charger for an extra cycle during the day. strong magnet

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

    Rated 2 out of 5 stars

    Small and handy but not enough juice

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

    Small, handy to use but cannot fully charge a Samsung galaxy s23 ultra from 15% battery level, but does provide enough battery to find a place and fully charge it.

    No, I would not recommend this to a friend
    • Brand response from Energizer PowerPacks Service Team
      Posted .

      Hi Atit,
      Glad to hear you found the power bank easy to carry and use. With a 5,000mAh capacity, it’s designed for quick top‑ups rather than full charges, especially for larger‑battery phones like the Galaxy S23 Ultra. It’s good that it still provided enough power to keep you going until you could fully recharge.

  • Rated 5 out of 5 stars

    I love it.

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

    I love this little guy. My charger report is broken on my iPhone. Was about to spend a few hundred for a new phone but instead spent 10 bucks for this.

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

    Decent wireless charger to save the w charge port.

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

    It's a little confusing with the LEDs and the amout of charge remaining. Wireless charging is fast.

    I would recommend this to a friend