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  • The text on the image reads "Insignia."
  • The text on the image reads "F C700 6e 100 IN/OUT INSIGNIA."
  • The text on the image reads "75% charged."
  • OUT 1h/100mA
  • The text on the image reads: "1 USB-C port and 1 USB port (30W total) can be used to charge your devices and the charger itself."
  • 7.2 in. built-in cable supports flexible placement.
  • Durable PC casing has a classy matte black finish.
  • Pair with the Insignia 4 ft. USB-C to USB-C cable (charging speed varies between devices).
  • 75% Charged 2. Insignia 48% 100% Do Not Disturb SD
  • The text on the image is "100t Insignia."
  • Insignia 10,000mAh Portable Charger Fast Charger for Smartphones, Tablets, Laptops & more C100 100 20 8 10,000 mAh Capacity 30w Max Output 10% Insignia 3 Output Ports Built-in Cable with Attached USB-C Charging Cable
  • The text on the image is already grouped and correctly written. It describes the Insignia 10,000mAh capacity fully charges tablets and smartphones, with bidirectional USB-C ports that can charge devices quickly. The power bank also has a built-in 7.2-inch USB-C cable and a sleek, compact design that fits inside a pocket or backpack. The text also includes a warning to avoid overcharging and to use the power bank with compatible devices.
  • Insignia - A Best Buy Brand video 0 minutes 22 seconds
  • Insignia™ 30W 10,000mAh Portable Charger Features video 1 minutes 16 seconds

Insignia™ - 30W 10,000mAh Portable Charger for Most Smartphones, Tablets and other USB-C devices - Black

Model:
NS-MB31030B25
SKU:
6585737
Your price for this item is $17.99
Clearance
The comparable value price is $34.99

Customer reviews

Rating 4.7 out of 5 stars with 120 reviews

Rating Filter

Rating by feature

  • Value

    Rating 4.7 out of 5 stars

  • Quality

    Rating 4.7 out of 5 stars

  • Ease of Use

    Rating 4.8 out of 5 stars

Pros mentioned filter

Cons mentioned filter

93%would recommend to a friend

Customers are saying

Customers have good things to say about the 30W 10,000mAh Portable Charger's long battery life, finding it sufficient for multiple charges of smartphones and tablets. They also appreciate the inclusion of a USB-C port and the charger's ease of use and portability. The convenient built-in cable and additional ports are frequently praised.

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 120 reviews
  • Pros mentioned:
    Overall performance

    works great.

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

    Works great.. Like the digital display that shows the available charge level. Great value..

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

      Thanks for sharing, SwatiK! That digital display really adds a useful touch. Glad it’s keeping your devices powered up with confidence. |Angelica| Insignia Products| BBY-ExBrand_Insignia

  • Pros mentioned:
    Charging speed

    Fast 30W Portable battery pack!

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

    This is a fast 30W battery pack with a very convenient built in usb c cable with decent length.

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

      Hi RVNN,
      Thanks for the awesome review! We’re glad you’re enjoying the speed and convenience of our 30W portable charger. That built-in USB-C cable was designed with on-the-go users like you in mind no more digging around for cords. We hope it keeps your devices powered up wherever life takes you! Patricia | Insignia Support BBY-ExBrand_Insignia

  • Pros mentioned:
    Portability

    As Advertisied

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

    Lightweight and get the job done. Good value compared to more expensive options.

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

    Charger

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

    Great charger to use on the go. I have had a great experience having an extra charger.

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

      "Thanks for sharing your experience, Yolanda! It’s great to hear the charger’s been a reliable companion on the go. Having that extra power source really makes a difference when you're out and about!"

      — Shiela | Insignia Support BBY-ExBrand_Insignia

  • Pros mentioned:
    Portability

    Portable and Great

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

    It works great and everyone needs one. Very portable and gives you peace of mind.

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

    Insignia 30watts 10,000 mAh portable charger

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

    Excellent design, quality and size. One of the best power bank to carry around.

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

    Everyone needs one

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

    Amazing product!! I bought it since im on the road a lot. I love it!

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Works so far

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

    It works so far. A little bigger than i expected but should be powerful.

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

    Slim power bank

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

    Nice power bank at a very good price. Slim and not heavy to carry in purse.

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

      Thank you for the kind feedback, Teacher! We're happy to hear the power bank is a great fit for your needs—its slim design and portability make it a convenient companion, and it's great to know you're finding value in both its performance and price. Jeth|Insignia Support. BBY-ExBrand_Insignia

  • Pros mentioned:
    Size
    Best Buy Employee

    Very useful!

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    Best Buy Employee
    Posted . Owned for 3 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Small compact and very relianle for my grandma when i need to help her charge her phone when she need to charge it during a family gathering!

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

      Thank you for your feedback. We are pleased to hear that our product's compact and reliable design has been helpful for your grandma during family gatherings. Your support is important to us, and we are committed to providing solutions that meet your needs.

      Keith | Insignia Support BBY-ExBrand_Insignia

  • Pros mentioned:
    Charging speed

    Small but Strong

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

    Holds charge and charges fast itself. Very light with a small form factor

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

      Hi AustinP,

      Thanks for the awesome feedback! We're thrilled to hear that the Insignia™ 30W 10,000mAh Portable Charger is delivering both power and portability for you. Its compact size and fast charging are exactly what we aimed for, so it’s great to know it’s hitting the mark. Patricia | Insignia Support BBY-ExBrand_Insignia

  • Pros mentioned:
    Charging speed
    Best Buy Employee

    The best battery for all day

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

    Amazing back up battery, charge my phone very very fast, love it

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

    Power bank

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

    Small and compact charges well and shows a display how much charge is left.

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

      Hi Mahbub,
      We really appreciate you taking the time to share your experience! We're glad to hear that the compact size and charge display of the Insignia™ 30W 10,000mAh Portable Charger are hitting the mark for you. That real-time battery indicator was added to give users more control and peace of mind—so it’s great to hear it’s working well for you. Patricia | Insignia Support BBY-ExBrand_Insignia

  • Pros mentioned:
    Overall performance

    Nice Charger

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

    Very nice nice quality and good performance I totally recommend

    I would recommend this to a friend

  • Registers as Super Fast Charging

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

    Love this! It does fast charge, actually my android phone says super fast charging when plugged in with the attached cable. It is a great value for the price, works just as well and even better than other power banks that are double the price. The 10,000 mAh is accurate. Small enough to throw into my cross body bag when on-the-go or traveling.

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

    Power all day

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

    Enough power for one day, insignia allway had good product

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

    sleek and effective

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

    great design. wish it held 20k instead of 10k, but charges devices quickly and recharges at a decent speed.

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

    Phone portable charger

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

    Charges very fast, and is easy to use, very simple

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

      Thanks, TamL! Love hearing it’s delivering speedy charge and hassle-free use. Sounds like a power companion worth keeping close! |Angelica| Insignia Products| BBY-ExBrand_Insignia

  • Pros mentioned:
    Overall performance

    Good 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.

    Works fine. Attached cord is nice. Loses some charge while sitting which I didn't really like, it can fully charge my iphone 16pro once with 30% left, kinda figured it would do a little more than that.

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

      Thank you for your review of the Insignia™ 30W 10,000mAh Portable Charger. We're glad to hear that it works fine and that you appreciate the attached cord. We apologize for the issue with losing some charge while sitting and understand your expectation for it to do a bit more than fully charge your iPhone 16 Pro once with 30% left. Your feedback is valuable and helps us improve our products to better meet our customers' needs. If you have any further concerns or need assistance, please don't hesitate to reach out. Ivy | Insignia Support BBY-ExBrand_Insignia

  • Portable charger

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

    Very convenient to use Cable included is very useful

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

      Thank you for the feedback. We’re glad to hear that you’re finding the product convenient to use and that the included cable is adding to its usefulness. It’s always great to know our products are making everyday tasks easier. We appreciate your support. – Keith | Insignia Support BBY-ExBrand_Insignia

Page 3, Showing 41-60 of 120 reviews
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