Customer Ratings & Reviews

I bought it to charge my phone while camping. I was able to charge my iPhone 6s Plus 5-6 times per charge from 50-60%. It works just like it’s supposed to. It does take along time to charge it. But it holds a charge very well till you need it.

I purchased 3 units at $14.99 each. I’m using them to charge two GoPro Hero4 Dual Battery Chargers (4 batteries charging at one time) and also I’m able to charge up two separate Beats Pill+. Great for on the go. Little weight to them if you’re planning to put it in your pocket. but if you’re traveling with a backpack, you’ll be just fine. Enough juice to last you many charges. Takes 13-14 hours to charge if unit is completely dead.

We bought this as I was tired of running out of battery on my cell phone and gopro. This charges both at the same time, isn't that heavy and is consistently working to charge my tablet, phone, gopro and more. VERY HAPPY with this product.

I saw this on sale for around $25.00. At the time that was the cheapest 20,000 mAh external battery available at Best Buy, so I purchased two. The size is very reasonable given the power rating, It has two USB ports for charging and I can say they are very fast. They're rated at a max of 4.8A, but I'm not sure if that's for both or each. I'm not sure what the price is currently, but for $25.00 I can highly recommend.

I have three of these charging bricks and use them frequently. It is very convenient around the house to not be tethered to the wall by a phone charger. I also traveled Europe recently with two and they kept my phone and my wife's phone charged while we were walking or hiking. This brick is a great option for a purse or backpack, it is a little large to fit in a normal pocket but will fit in a cargo pocket easily.

Bought this for a vacation and it worked great. It's big but you can get multiple phone charges. The capacity is very large.

Purchased this charger on a great sale at Best Buy. The two charging ports allows two devices to be charged simultaneously. With 20,000mAH charging power, on one full charge I was able to charge a smartphone twice and a tablet twice. It does take awhile to charge, so plan accordingly prior to use. Also, the charger is somewhat heavy, so even though it is a "portable" charger, I would not want to carry it around.

This charger is pretty heavy but it will charge about 4 devices to 100%, definitely better than any other portable charger I've purchased.

So far so good....that's why I gave it 4 stars. Have not had it for a long period of time yet. My son-in-law has the 8,000 mAh and he loves it. This one is larger and heavier and as someone else mentioned the cable is too short so buy another cable(another reason for 4 stars). But I did purchase as a Deal of the Day and got a great price so I can't complain. This is something worth having in case you need to charge your phone and no place to do it. I would recommend.

I purchased this before taking a week long vacation at Disney World, it was the perfect charger to throw in the backpack and head to the parks with. Yes it was slightly heavy... too heavy to keep in your pockets in my opinion, but I hardly noticed it in my back pack. It charged my Iphone 6s Plus and my husbands Iphone 7 Plus at least two times a day with battery still left on it at the end of those long Disney days!

great battery. just know that as batteries go, it's pretty large (dimension wise) and kinda heavy.....but really great capacity.

Finally on the shelves for sale. NEVER worry about a dead phone again. And, never go to a location and worry about finding a plug. Never worry about somebody tripping over your charging cable. Just plug it into your phone, keep going as if nothing happened AND charge up your phone as well. Oh, you can do it to two phones at the same time. After charging this unit, you're good for many morecharges.

We have taken this on multiple camping trips. It saves the day for my teenagers’ game console and cellphones when winding down the day and my husband and my cellphones drained from taking pictures. Compact and portable. Only 2 USB outputs but no problem rotating for charging. Indicator light for remaining juice is also great.

I purchased the Pocket Juice 20000 mAh for a recent overseas trip visiting close family and it was exactly what was needed to keep my teenage sons phones charged. Each phone was able to get at least 2 full charges from it and it was still showing that it had 2 lights of power left. Needless to say my sons were not complaining as with two USB slots they were able to plug in and charge at the same time.

Ability to charge two devices at once but the power bank is heavy, but has a capacity of 20000 mAh. The led indicator shows the charge level.

So far so good.It is a bit heavy and the cord they give you is too short. It will charge my galaxy at least 5 times and with 2 usb its a plus.

Bought this portable charger for a trip to New York last month. Not only did it keep my iPhone 6 fully charged all day but my wife's iPhone 7 and my cousins Android never died during our week long sight seeing trip. The power indicator light is quick and easy and the unit recharges quickly. Great product...when my kids are older and i need another charger, i will be buying from Tzumi again.

This thing it’s a beast! I fully charged it, so I wanted to test it. It charged my phone 6 times. It also hold the charge even if you don’t use it for a few of weeks. I agree with some of the other reviews when they said it’s kinda big. It is big, not the kind of portable charger you can put on your pocket. For my needs works perfect. Getting ready for hurricane season.

This is a great power pack fast charging works great at all my devices little bit big but holds a lot of power

It's very packed and last pretty much the whole day if use non-stop half the day on a high draining phone but on a standard or low draining phone it could last one or two days and have multiple charges