Customer Ratings & Reviews

Worked for about 3 weeks before a charging port wither fell out or broke off. At thi same time the other port stopped working. However the company does have great customer service and is currently assisting me.

Works great as we use to charge both an Ipad and IPhone at the same time during softball season while using Game Changer and streaming live through the phones hotspot.

Love these little batteries of power. When the power goes out, you don't have to log out, just plug in ....

i bought this portable charger to recharge my celphone and blutooth speaker when i go out fishing. it works really well. make sure you keep it charged

The PowerBank lasts a looooong time! It supplies power to my Sony A6500 as an external battery supply which is so needed during a full day videoshoot of a wedding.

This charger has come in very useful. I am able to charge my galaxy s7 a few times without recharging unit. Great for conferences or a long day away from power.

I watch alot of movies on my phone, so I am always in need of extra charge, and this charger always has plenty.

Took it to a Cubs game and was able to keep my phone charged and the phones of the other three people I was with.I like this product so well I bought two more for my sons.

Best chargers ever. I got them for a steal. Worked flawlessly. Have saved me dozens of time when phones or computers were dying.

This battery pack has come in handy very often. I can charge my IPhone 7 Plus 4 times before draining it. I would recommend to anyone who uses their phone or tablet often.

It is always great to have something to charge my cell phone, This item lasts for a long period of time. I am glad that I purchased the warranty that came with it.

Love this!! I need to got another one. This works great last for at least two full charges up to two phones

Charger is already charged when you purchase it so you can start using it right away. Plan on using it to charge my Sony batteries while traveling.

This pocket charger is a lifesaver. I am self employed and it's great to have my phone with me to take client calls instead of leaving it to charge in my vehicle.

We used this to charge our phones and iPads during vacation over Memorial Weekend and it was able to recharge 4 devices multiple times. We love this product

Lifesaver. Extended the life of my wife's phone by a year, and very handy out in the sticks when hunting.

Bought this item for our trip to Alaska. The battery life and charge last a long time. Was glad to have it to charge up all our phones on our trip

This is charger is pretty heavy. In addition, I noticed that when recharging the actual charger itself, the normal, slower , blinking blue lights indicating charged level, would start blinking really fast, and stop charging further. Tried a different cable and plug, same results. If I unplugged and then replugged, it would charge further each time. I returned it for a different brand which works great. Also, Tzumi customer support is non-existent, meaning, I sent an email describing the problem, and never received a response other than the canned "will get back to you in 48 hours".

After trying two other brands got this one and so far we love it! Can charge both phones at the same time.

Holds a charge and delivers when you need it. Not sure how many times it could recharge my phone but it's more than I could possibly use in a day.