Customer Ratings & Reviews

For the money and convenience it's difficult to find a charger with such a capacity that's a better value. I was in a hurry to get to Vegas and I needed extra juice for my phone and bluetooth earpiece while on the SHOT Show floor and while trekking at Red Rock. Although it's a little heavier than many other lower-capacity units, I liked that during my week there I didn't have to charge it once and it was in my backpack keeping my stuff topped-off nicely. I even used it on the plane during the 5-hours of flying back to Florida to also keep my Huawei tablet topped-off. It takes a little while to charge it when it's low, but it retains a charge for quite some time and is very easy to use. No issues so far. I keep mine in a small hard-shell case with ventilation. I hope this helps and regards from Florida Jimmy

I love this charger. I had originally purchased the 4,000 mAh wireless charger but returned it due to it not being very efficient at all through wireless charging and lagging in the wired charging as well. I returned that and paid the extra $18 to get this with almost 4 times the power and love it. It doesn't have the wireless charging of the other unit I originally purchased but that is fine since I didn't like the performance of that feature anyway. I was more concerned with the total battery power. This is great with that. I can charge my Samsung Galaxy S9 twice and my wife's Samsung Galaxy Note9 once and almost enough to charge hers a second time completely but it does run out of battery at about 70-75% on the second charge for hers. The S9 has a 3,000 mAh battery and the Note9 has a 4,000 mAh battery so that's almost 14,000 mAh of power out of a 15,000 mAh battery. From my personal experience with these things, that is great for efficiency. You will never get 100% of the battery rating with any product but how much you do get can vary greatly from one to the next and this one delivers.

This thing can hold a charge good enough for a week or work and takes about a night to charge. Never thought something so compact and sleek would work so well and for suck a great price.

This power bank is a must for long days or nights where wall plugs are not readily available. With 2 USB ports to connect your devices to, you can stay powered up. The down side is 3 fold....first the charge cable included is super short...like 2 inches from end to end. The Tzumi charges by connecting from a USB block or your computer on one end of the cable to a mini input on the device. It charges much faster with wall power but using the included cable is difficult. Second, the Tzumi takes a long while to charge...you'll have to be prepared to charge overnight for your next days' adventures. And third, it's heavy and bulky so you'll need your purse or backpack to carry it. Overall, it's pretty good but make sure you get it on a deal of the day.

On a recent vacation, both my wife and I noticed our phones batteries were draining a lot faster than anticipated. We were able to hook up both phones and get charges using the TZumi Pocket juice. This product turned out to be a life saver on long hikes to keep us powered up. A little heavy, but very comparable to other products on the market and a better value.

This thing lasts me multiple days! I use it to play pokémonGo as well as charge my phone while i'm at work without having to leave it near a wall outlet. The satiny finish is a nice touch. Weight is nice and size isn't outrageous considering the power it holds and the covenience it adds to my life

I used it on the plane and played music, movies and games and it stayed at 100 percent during a 3 hour flight. When I landed it still had 4 lights on the charge. Also have to point my phone sucks and it drains fast so the fact that it stayed fully charged was impressive.

This is a present for my sister. Why do I mention that...she is constantly not keeping her phone charged or forgets her power cord. This device also has 2 output sources so you can charge 2 items at once. Small as a phone, big enough not to lose ( hopefully). The small, stick like chargers seem to go missing more easily.

This this is awesome and I mean AWESOME. I am going to get another for my brother for Christmas gift this year. I would recommend getting this product. I got the 15000 version of the charger takes time to get fully charged, but when it is it will last for awhile

Tzumi charges my phone quickly and holds many recharges. Easy to recharge too. After hurricane Irma I needed a new charger with high capacity. This is it!

Nice size and holds a lot of juice! Nice fit in my camera bag and comes in handy to charge my camera batteries several times. Great product.

Extremely Works Great. Use If My Phone Is Dying On The Train. Also Could Charge (2) Things At The Same Time A Phone And A IPod.

This was the biggest battery pack and the price was amazingly cheap very tough and charged my Galaxy S7 Edge about 5 times

just bought this portable charger due to blackout in our area and i didnt have anything to keep my phone charged. i like that it has dual usbs and can prevent over charging. its a little heavy to carry around as a backup charger but at .8 lbs, that was the avg weight. it already came fully charged so i havent had to do a complete charge yet so not sure how long itll take. this is the 1st time ive heard of the tzumi brand but its worth a try!

I don't have power in the cab of my work truck so I use this to power my GPS and charge my iPhone. The last time I used it consecutively the whole day without turning it off, it lasted about 8 hours!

I was looking for a portable charger to charge 2 iPhones, 1 iPad, GoPro, earphones on the go. It charges devices pretty quick and can’t complain on the actual recharge time of the portable charger.

I wanted more for my money and that's what I got with this brand plus it charges my samsung S7 fast and a best buy employee recommended it p.s. short charging cord that comes with it is the only con

This definitely give the extra power needed and the 2 USB plugs are nice. It charges reasonably fast.

I bought this for my dad so he can have his phone charge while at home since we are from Puerto Rico and still gat no power since the hurricane. I got this on special sale and it has worked flawlessly for now. It's a bit heavy but it doesn't bother.

First, the only flaw is its size, but I knew this upon browsing in store. On a full charge of the juice pack, this has fully charged my Galaxy Note 8, four times. I play games, watch youtube, slingTV, or stream audio via spotify; depending on level of my boredom. It has 2 USB ports which comes in handy when I need to recharge my Marshmallow earbuds at the same time. For the price, I paid, well worth it.