Customer Ratings & Reviews

Haven't used it for 11 different full charges but it works perfectly when on charged my phone 5 times before recharging the battery pack.

This works great. Charges my phone faster than me plugging it into the wall. Also allows me to sit up at night and get a lot of work done.

Worked great for my iPhone 6 Plus! Got multiple charges out of it. Easy to use and charges fast.

My phone now lies to me about how much battery life is left. I got this to give me a few extra hours on the phone at the end of the day. Now I find I need to recharge the phone multiple times per day. This allows me to do that wherever I find myself, whether there is a power outlet available or not. 4 stars, because there are a few odd quirks. Once, the device seemed to be discharging while not connected to any device. I connected the the power output back to the power input and that stopped the issue. It still works so I didn't break it. This worked because (apparently by design) the power output shuts off if the power input is connected. Bonus, two charging ports, so you can charge your phone and tablet at the same time. Pack can fully recharge my devices at least three times before I need to recharge the pack. Warning: LED lights are really bright, so maybe you want to charge the pack in the office or the kitchen rather than the bedroom.

Needed this to recharge cell phones when attending outdoor band contexts. Easily took care if all recharging with power to spare.

It charges 2 divices at the time.Fits in your pocket.

This was a great purchase. I have used this charger multiple times already without have to charge it back up. It is great!

Great price size is nice and the length of charge is awesome

The battery pack holds its own, the only downside being the very short charging cable it is provided with. They give you about a 1inch cable which is high enough ampage to charge the battery pack or your devices and I found this to be very inconvienient. The cable shorted out after about 2 weeks of use. You will definately want to invest in a high amp charging cable to go with it. Some cables you will find will only handle about 1/3 of this battery packs output capabilities so it is definately a good investment and good idea to keep in mind. Otherwise great product, works as advertised.

Nice portable charger to bring along for keeping my older cell phone charged. It's nice to have the two USB ports for charging two things at once (though I rarely use it for that).

Investigated several portable chargers before purchasing the Tzumi. Reviews and price were good. The device itself takes a little while to charge fully but once it does it holds well. It charged my cellphone very quickly. Device has a little weight to it and was about the size of my phone. Would recommend.

I bought this charger for our Disney trip. It worked great. We were able to charge 3 phones and could have charged more

I bought this charger so it would be able to charge all my electronics while I was in the field for my military training. Takes a few hours to fully charge but, once it's charged it charged my phone for 4 days. For someone who just wants a charger to last and charge a small amount of electronics, this one is perfect for a great price!

The price of the power band is great and the quality of the power bank is good and mine hasn’t given me any trouble

Long battery life, durable, and convenientlyrics sized

This portable charger was exactly what I needed. There are smaller chargers out there (that would easily fit into a pocket, for example), but I wanted one that would charge my electronic devices several times over before needing to plug the charger in again. For the price, this charger served my needs and is a good value

Bought this charger for my daughter, who uses her phone all the time. She absolutely loves it! It charges her phone several times without needing to be recharged after each use. It isn't too bulky for her bags, and she brings it on all of her vacations or road trips. Great buy for the price!

My daughter took this on a car trip to Texas from Pennsylvania and it helped her never to be without her phone.

It maintains the charge for six cell phones. Full charge only takes less than 10 hours to charge battery pack.

This charger has gone above and beyond my expectations and quickly charges my phone when I really need it. It is also able to charge more than one time and this is convenient because I have a job that requires me to have a fully charged phone at all times. I highly recommend this product.