Customer Ratings & Reviews

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.

It charges dev quick and durable. The product is bigger than a iPhone 6+, it takes the battery around two days to fully charge. Its heavy and bulky but holds charge for a long time

Does what it needs to do, option to charge two devices at once is a plus. Charged my iPhone SE from 20% to 50% in around 30 min. It raised the temp of the battery during charge so I stopped the charge at 50, not sure if its an issue or just the amount of output power into the device. The look and feel of it is good but it shows your fingerprints easily, a full green ring for indicating a full battery is nice and bright. It is in the large size and heavier side, its better to keep it in a bag or backpack if you are on the go.

Bought this because it was on sale and less than other power banks with less mAh. Honestly, wasn't expecting much from this but it surprised me with how quickly it charges and it lasted at least 6 full charges between my iPhone and iPad. It is a bit heavy and bulky but that's expected for a power bank with 20,000 mAh. Ideal for traveling!

The Tzumi PocketJuice 20,000 man Portable Charger packs the punch with quick charging. I wanted a reliable charger that I could get several uses out of, this does just that. I have wasted money on off brand less powerful chargers to only be disappointed because they work a few times before dying. If you want quality and something that will last a long time, go with the Tzumi. I only found 2 very minor flaws - it does not come with a case and it's heavy when carrying it around. However, the sense of knowing I can get a quick long charge outweighs these very minor flaws.

I purchased this power bank due to size and price. Comfortable size considering its 20,000 mAh. Can charge two devices at the same time. Would recommend for storm outages, road trips, camping, hikes, or traveling by air. Being usb, you aren't committed to one type of devices. You can charge your iPhone, micro usb, Type-C, GoPro, tablet or anything else that has a usb plug.

We needed additional battery power for 2 Kindles on a 3+ hour flight. This pack worked great. Powered 2 kindles for the flight and had about 1/2 battery to spare. One of our Kindles holds absolutely no charge so one relied solely on the battery pack. As for the pack itself, it's small and lightweight, lighter than expected. It has an indicator light that shows how much battery is remaining. It has 2 USB outlets so it can power up to 2 items simultaneously. Recharge time depends on the charger but using a high power charger it will fully charge in about 4 hours or so. In short, it was well worth the money. I would recommend it highly.

Recharges the IPhone 6 with good speed. There are quite a few recharges of the IPhone 6 in the PocketJuice. Recharging of the PocketJuice takes quite a long time. The PocketJuice is quite heavy and takes up a lot of room in your pocket.

This battery is fantastic! I got it during one of the deals of the day - it definitely doesn't disappoint. Large capacity and you can charge two devices at a time - it worked for us during a Disney vacation.

I purchased two of these on deal of day after reading several good reviews about it. It charged my iPad from 5% to 100% in a couple of hours and still had a half charge left on it. It has been extremely useful in charging devices while children were watching movies on our devices outside of house/vehicle. The only con for some might be the weight of the product, as it is a little heavy, but this doesn't bother me any. I just throw it in my purse on my way out the door and never have to worry about any of our devices having dead batteries while on the go.

This power bank is unique, powerful and super fast. Excellent for emergency purposes when you are away from home.. I really love it and I use it a lot.. Can recharge any phone up to 5 times before it gets to the low level..

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

During a long flight my phone just ran out of power. I decided to look into a portable power source. The Tzumi was on sale plus we had rewards to spend. The unit is large and has some weight to it. The trade off is the amount of charging it can produce. On our last cross country flight the Tzumi kept 2 phones and a ipad going. Made the flight a lot easier to deal with. It does the job as described.

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.

When I purchase a battery pack, I always look at the battery size by milliamps. This is the going to be the best bang for your buck. Works wonderful and will charge my 12.9 iPad pro quickly

Best portable charger I have ever purchased, and I have had several over the years! It’s lightning quick and it charges my phone several times before having to recharge it. It’s a little on the heavier side, but worth every penny...you get what you pay for! Would definitely recommend this charger to anyone and would purchase it again!

I've taken this on my travels overseas and at work. It's perfect for any occasion. Holds charges for days and powers my devices (iPad, phone, camera) quick.

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 bought this for 15 bucks and it has worked like a charm. 2 USB ports I can charge 2 things at a time plus this thing charges my phone fast.

Such a great product that I bought 2 more for family members. Charges phone super fast and can charge it like 5 times before it itself needs to be recharged. Only 2 things that are cons to me and that is its big and bulky and that it takes forever to charge up but considering what it can do, its not the end of the world. Great product.