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Customer reviews

Rating 4.6 out of 5 stars with 1365 reviews

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Rating by feature

  • Value

    Rating 4.4 out of 5 stars

  • Quality

    Rating 4.4 out of 5 stars

  • Ease of Use

    Rating 4.7 out of 5 stars

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93%would recommend to a friend

Customers are saying

Customers are impressed with the PocketJuice 20,000 mAh Portable Charger's impressive battery life, portability, and economical price. Many appreciate its multiple USB ports and large capacity. However, some customers find the device to be somewhat bulky and heavy. A small number also noted that the charger can get warm during use.

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.
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Page 1 Showing 1-20 of 277 reviews
  • Pros mentioned:
    Battery life

    Rated 4 out of 5 stars

    Works good for my kids' ipads

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

    Bought 2 of these and received on good condition. In full charge, we tried plugging a runnibg iPad to it in prep for our camping and works for almost a day. I didn't wait til it drain out and I'm good with it. I put only 4 stars as I wish I could charge it faster... takes about 4 hours to charge.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life
    Cons mentioned:
    Size, Weight

    Rated 4 out of 5 stars

    Performance good, heavy after a while

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

    I thought this to help extend the life of my iPad Pro to get through a full day at college taking notes with my Apple Pencil via Bluetooth. This did a great job extending the battery. It charges relatively rapidly at night when I’m charging my iPad. Really my biggest problem is that it gets heavy after a while in the backpack, and perhaps that it’s kind of bulky an unruly on teeny tiny college desks when I’m trying to recharge the iPad. I wish I could get a give this a 4 1/2 But I had to choose one or the other, so with my two very minor not even really complaints I rounded down to 4.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life, Charging speed, Usb ports
    Cons mentioned:
    Size

    Rated 4 out of 5 stars

    Huge capacity!

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

    I have an iPhone 6S and haven't had the battery changed yet, so it tends to run out of juice faster than I would like. As I was getting ready to fly out for a big 5-day sales meeting, I decided it would be a good idea to invest in a portable charger. Luckily, the Best Buy "Deal of the Day" just happened to be this Tzumi - PocketJuice 20,000 mAh Portable Charger, and for less than $20 dollars, it seemed worth a try. I'm glad I did! First of all, the capacity is huge at 20,000 mAh. According to the packaging, I should be able to charge my phone about 11 times - although I would say it's more like 6-7 full charges. It's a little larger and heavier than I expected, but it's still small enough to fit into a suit jacket pocket. It has 2 USB ports, so I can actually charge 2 devices at once such as my iPhone and iPad. I would say it charges my phone at about the same rate as my wall charger. The on/off button has lights around it showing how much charge is remaining, which I find really helpful. The device itself takes up to about 15 to reach a full charge, and the only cord that comes with it is a very short USB to mini-USB. No "wall wart", you'll have to provide your own or plug it into the USB port of a computer to charge it. Overall I'm very happy with it. We'll see how well it holds up over time.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life, Portability
    Cons mentioned:
    Size

    Rated 4 out of 5 stars

    I use it all the time

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

    This is a great backup battery for charging mobile devices. It is a bit bulky, but it packs a lot of energy and can recharge my phone about 3 times before needing to be recharged itself. It is simple to use with only one button. One click to turn it on, and two to turn it off. It could not be simpler.

    I would recommend this to a friend
  • Pros mentioned:
    Usb ports
    Cons mentioned:
    Weight

    Rated 4 out of 5 stars

    Is bigger better

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

    Love that y can get several charger for your iPhone or iPad. Also works to keep DSL camera charged when taking a lot if video. Only down side, beside the weight is the fact that it only comes with a charger cord and not a plug to put into outlet. Cord is also very short so charging my be awkward using normal outlets.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life, Charging speed
    Cons mentioned:
    Size

    Rated 4 out of 5 stars

    Great backup power source

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

    A little bigger than I expected, but once this unit is fully charged, it should last you through out the week. Definitely 20,000 mAh, and charges fairly rapidly. I strongly recommend this power bank

    I would recommend this to a friend
  • Pros mentioned:
    Battery life
    Cons mentioned:
    Size, Weight

    Rated 4 out of 5 stars

    a LOT of stored juice

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

    Great source of external battery power is packed into this, relatively, small, package.It is kinda bulky, and a bit on the heavy side if carrying it in a carry-on, but convenience of having 20,000+ Mahs on the go is worth it. Works seamlessly by simply connecting it to your device via USB micro cable. The only nuances I have is that it takes a long time recharge it. It came half-charged out of the box, and took overnight to charge the other half. Also, you can't recharge while it recharging another device. Other than that, 5 stars!

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

    Rated 4 out of 5 stars

    Great Battery backup but kinda on da heavy side

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

    2nd Battery backup of the exact same model/brand. Got 1st at decent price but not like this 1 went on Sale. Great backup for iPad & iPhone 6s+ & still had plenty of juice left. It does take a lil bit of time to recharge But it’s not a problem if you have 2 like myself. It is kinda heavy but I’m guessing since it has a huge capacity then it gets a pass so get 2 & workout your arms, lol. I definitely would recommend it & when on sale., get it...! I would of given it a 5 Star rating if not for the weight & charge time....

    I would recommend this to a friend
  • Pros mentioned:
    Battery life
    Cons mentioned:
    Size, Weight

    Rated 4 out of 5 stars

    Long lasting

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

    After using a smaller power pack by this company I decided to try one of larger capacity. This thing lasts a long time! One charge and you'll have multiple days of recharges for your phone. Of course such power comes at a price: the device is rather heavy and perhaps a bit longer than is comfortable to carry in hand or pocket. I still greatly recommend it though if you're going to be away and need the ability to charge your devices. Would be a great asset for a hurricane supply item.

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

    Rated 4 out of 5 stars

    Does what it says

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

    This thing is great for traveling. I also rubberband to my tripod and it keeps my 360 camera going for an entire wedding on a streamline recording. It does take all night to charge, but it is a big battery. For more money there are others that allow duel charging. This one does not have that option. Also, you CANNOT charge the bank while the bank is charging your device. The price i got it for was good, so not going to complain about the other features. Just plan ahead amd dont forget to charge it. It has enough juice to last a few days if you just charge youe device a fee times a day.

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

    Rated 4 out of 5 stars

    Christmas present

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

    I bought this portable battery for a Christmas gift, so I do not know how it works. I would say that it is fairly large and heavy. I`m not sure how "pocket" it really is. I`m not sure if the person I`m giving this to will keep it or not.

    No, I would not recommend this to a friend
  • Pros mentioned:
    Battery life, Charging speed
    Cons mentioned:
    Size, Weight

    Rated 4 out of 5 stars

    Nice big capacity charger

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

    Charged my phone quickly from 1% to full in an hour. Still had 3/4 Charged left on charger. Bigger than a cell phone and heavier.

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

    Rated 4 out of 5 stars

    Long lasting & quick charging

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

    Bought for traveling for work. Use it all the time now. It only takes a couple hours to charge fully then lasts for a long time. It quickly charges my multiple devices.

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

    Rated 4 out of 5 stars

    Tzumi 20,000 MaH portable charger.

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

    Bought this to power my cell phone when I can't access a power supply easily and it has worked out great. The short cord that it comes with lasted about 3 months with light use. I personally found it much easier to use a slightly longer micro USB charging cable but that's no reflection on the charger itself. Pack was in my bag for about a month with no use and still showed as havinh 75% juice so it holds a charge for a decent amount of time.

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

    Rated 4 out of 5 stars

    Great portable charge

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

    Used on a ski trip and was able to recharge phone and GoPro while having lunch. Holds charge long and quickly recharges phone.

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

    Rated 4 out of 5 stars

    Does it’s job

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

    Holds a charge for a long time but the charger it comes with to charge it is very short. It is also very heavy

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

    Rated 4 out of 5 stars

    Good portable charger

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

    I bought this mainly to allow me to charge my iPad and iPhone without being tethered to an AC outlet, and it has served its purpose nicely. While it is a little heavy, and not small enough for your pants pocket (despite the name implying so), it does fit in my wife's purse or in my backpack's small pocket, which is portable enough for my needs. I'm able to fully charge (from 1% to 100% battery) the iPad twice on one full charge of the PocketJuice, which is nice. I do wish it came with a longer included microUSB to USB cable, but it's fairly easy to get another cable to use. It also would be nice to come packaged with a USB-to-AC power adapter. Still, it's a good product to have on hand, particularly if you don't have easy access to another power source.

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

    Rated 4 out of 5 stars

    Great...

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

    A great product that does recharge electronics very fast. The only downsize is the weight

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

    Rated 4 out of 5 stars

    Decent Battery Pack for the price

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

    I purchased the Pocket Juice battery pack mainly for travelling. I find myself on long distance trips with layovers that I use my portable electronic devices and need an external source of power when outlets are not easily accessible or available. To that end, this battery pack is well suited and offers several charges of a phone and a couple for a tablet (both of which can easily and somewhat quickly be charged by this battery pack). The build quality is decent. The only con I can think of is that this battery pack is larger than expected. It is 20,000 mah so, I knew it would be large, I was just expecting it to be a little smaller than it actually is.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life
    Cons mentioned:
    Size, Weight

    Rated 4 out of 5 stars

    Amazing charger for my Samsung S7

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

    Although it takes hours to fully charge, I was able to fully charge my Samsung S7 four-five times over with this battery pack. The only drawback is its bulk. Its very heavy and I don't think you can carry this on airplanes.

    I would recommend this to a friend