Customer Ratings & Reviews

So I was very specific when I went to get a new power bank after having my last one stolen out of my vehicle. I wanted something that would charge my 13" hp envy x360, my note 9, and my school equip (calc, voice recorder, ect) all on 1 charge. Plus, I wanted it to be quick charging as well. Picky right?!? Anyways, I'm happy to say that this bank is not only keeping up with me, but I'm finding it goes quite a bit farther than the same size, but different brand, that had been stolen. Yeah, I had to replace a perfectly good one, but I would say that it worked out in my favor when you look at how much better this power bank is. Trust me, this ones worth a look.

I need a new battery pack laying on the spur of the moment pick this one up because I was on a good sale and boy was I surprised. He charges by a type c which is good cuz now I don't need to use all micro USB and type c all in different arrays since my phone is a Galaxy s8 plus it holds a good charge digital displays nice to see how much battery life is left

Nice product, works really good,charges fast & 4 times iphones charges

Great Battery for charging multiple devices such as iPads or iPhones. Great for me because of the USB-C port to directly charge my iPad Pro and the Power Delivery 3.0 USB port is great for charging my iPhone. Can probably charge a iPhone XS Max 2-3 times fully. It also has a nice clear led display that reads out the percentages. Highly recommended for the price. It did develop a small whining sound when charging and I was out of warranty, but Customer Service at Tzumi was top notch and they replaced it for me as a courtesy. Overall, a great everyday carry and it’s always in my backpack for College.

This battery pack is everything I wanted in a portable. I can charge my phone several times and even if im not using the battery it stays charged for a long time.

I’ve had this for about 3 weeks, works so far, Once it’s fully charged, It retains the battery pretty well. I’ve charged my iPhone X max plus, pretty quick to full charge, the charger still got 88% left. I like it, took it with me to the beach, convenient. Just slightly heavy than I would like (since I carry it around while on vacation).

So far I am pleased with this charger. It is a little heavy, but I tried another charger (different brand) and it would only charge my phone 3 or 4 times. So far we have been able to get 6-7 charges out of this one (we are still trying different tactics to get more phone charges out of it. It has two options, one is a faster speed which is a great option especially if we are traveling. Also it has two ports to charge two phones at once! It does take a very long time for the charger to re-charge, about 11 hours.

Once this device is fully charged (100 on LCD), it has enough juice to recharge two different size tablets twice (each) and two different cellphones (one Apple/one LG, simultaneously) two times each. There was also still enough power to continue since it had more than 20% left according to LCD. The power supply will vary from device to device, but I've had no issues with mine. I even tested the charge on my MacBook Pro (newest model) and, sure enough, it's compatible since the Tzumi PocketJuice 20,000 mAh also comes with a usb type-c. Unfortunately, I can't say how long it would take to charge my laptop, or if it's capable of an entire charge, because I haven't needed it.

Now that I've used this battery for quite a while (2 years), it earns 5 stars. It runs my Galaxy Note 8 all day with heavy use. I bought 2 of these, just in case... Not once have I needed to use the 2nd battery. Great battery for a good price. Charges relatively quickly, but I've never taken it under 50%...

Excellent sake price for a device I project being able to charge my phone at least 3 times (based on 1st charging). Only issue is it’s heavy but for when I plan to carry it with me, it’s not an issue since it’ll be in my backpack as opposed to my jacket pocket for example.

This was purchased in preparation for a European vacation and did not disappoint in the least! It holds a charge for a long time, it charges devices quickly, and is extremely portable/useful when you don’t have access to US outlets. We will not travel without it again!

This portable charger is quite hefty and a little bulky, but the 20,000 mAh capacity is a beast and can charge my cell phone probably 9x. The charger itself is slow to replenish its charge, but it lasts a long time between refills, so not much of a concern there.

Great portable charger. A little heavy, but no problem if you aren't holding on to it. Fast charging for any device. Stays fully charged (as indicated by the charge percentage) for a long time.

I really can't say anything about this item, even the price was reasonable at 50 something dollars. It's a beast, you can charge your phone to full many many times on one full charge. I like the digital display so I know where the battery is at. It's bulky but fits in my backpack just fine. I think I could charge my phone, tablet and laptop 2 or 3 times each before this battery would get low. I'm a fan.

I love this battery. It's a huge capacity and the ability to charge USB-c to USB-c is Awesome. It charges so fast. The qc3.0 port is great and very convenient to be able to charge it from a USB-c or lightning cable.

This battery pack will charge anything fast and multiple times. I leave my GoPro plugged into this for hours while recording simultaneously or livestreaming. It's a little big and heavy but it is a 20,000mAH battery.

This is my second purchase of this very same product. It’s been great. I can get several full iPhone X charges out of one full charge from this guy (I’ve honestly never counted so I can’t give an exact number). . . I noticed they don’t specify this in the product descriptions, but there are 2 USB ports on this, one charges at a standard rate while the other is a rapid charging port. . . It also has a lightning port and a type C port. The type c port works both ways so you can use it to charge the battery back up as well. Get this one

Purchased for a competition out of town. At some point every parent and athlete used it at the same time. It is heavy and not compact, but does hold power.

Great charging capacity. Only complaint is it is heavy like a brick, making it difficult to take with you everywhere.

Pretty easy to use. Great charger, although it’s big and a little too heavy. Charges fast, but also takes hours to fully charge the pocket juice.