Customer Ratings & Reviews

I've had a ton of portable chargers and this one is by far the best. 20,000mAH is a strong charge and charges my iPad Pro and iPhone 7 Plus.

This is something you must buy if you use your cellphone a lot or any devices that run out of battery fast. I use this on my lg k20 phone and my Galaxy Tab 4 devices. It can charge them a few times before i have to fully charge it again. It does take a while, but having the convience of this device surpasses that flaw. I have 2 of these. Bought it for 20 during the deal of the day. Definately worth it!!!

Even though my battery rarely dies, by far this Tzumi battery pack works great, never lets me down and charges at a decent rate.

Easy to use. Portable. Hold the charges for a long time when not in use. Definitely recommended for the price

Carried charger in backpack while skiing. Quickly refreshed charge on phone I had music on and the Gopro I was using during lunch break.

Best power bank I've purchased. Highly recommend. Holds charge very well and quickly charges my cell and Bluetooth speakers.

With so many devices that need charging around the house, everyone needs a charge in the go sometime. Little heavy but many charges.

This does well with charging your phone on the go. Only issue is the heft to it might be bulky sticking in your pocket on long walks.

Bought this for the long flight to Germany each month. The built charger on the plane only works half the time. With this battery I can charge my iPad and iPhone at the same time and still have juice left for the flight to Saudi Arabia. So far no issues with security not allowing it. It is a larger sized battery but fits perfect in a pocket or side bag on the backpack. Happy to have found it!!

I absolutely love this charger. It Is a little heavier than I would like for my purse but the amount of power it has makes it worth it.

Fast Charger, a little heavy to be a portable but It's 20000 mha so I guest that is the reason the battery have to be bigger.

it is larger and heavier but has more charge and can do more than one device at a time...if you need more this one is great

I had bought this product from different brands in the past and none of them were as good as this one. In terms of quality, you can't go wrong with it, you'll be able to recharge your phone over and over again. However, the size of this specific product, the 20,000mAh is ridiculous and very inconvenient! My husband has the 12,000 and it works just as fine and it has the perfect size to carry in my purse.

Very portable. A bit slow to charge. Charges devices at a moderate speed. Overall an amazing product for the price when on sale.

This charger is not only quick but it does last forever charging many devices after only charging it once. I highly recommend it!

I bought this as a Mother's Day gift, and my mom loves it. She can charge her phone and kindle at the same time. There are also lights to indicate the amount of battery left, so when its under 25%, or 1 light, she knows she can still get about 2 charges out of it before recharging. She can't wait to take it camping or on vacation and not to have to worry about always finding an outlet.

This portable charger is very powerful. You can use it multiple times before having to plug it back in. Only drawback is that it is big and heavy

This is the best one ever ,fast charged and last longer , also I can charge iPhone and iPad at the same time , worth it

The unit works well. It is a quick charge unit so it will refill fast. However, it does not dish out quick charge. Nevertheless, it is a great unit that you can put to charge and it wont be long untill it is full. Do keep in mind that it is heavier and bigger than other units due to its capacity. I would not put it in my back pant pocket but if you have a backpack or purse, it is perfect. Lots of "juice"!

20,000 mAh...tons of power. This will charge my iPhone 7+ Six times before needing a charge. And it recharges pretty quickly.