Tzumi - PocketJuice Solo 4000 mAh Portable Charger for Most USB-Enabled Devices - Black

Bought when it was on sale. 5V 1-amp. Compact, pocket size, but wish the USB cord was a bit longer. First charge of the power bank took more than 4 hours. Green LED blinks when charging and turns to steady green once charged. Would recommend to anyone for the size and price.

For around 6 bucks you cant get mad for being little heavy and small led on top. The picture is wrong. The circle led isnt true. Got 2 more from different best buy and they are the same. Used it for few days. Works well.

Good price for 4000mah Easy to use just use the cord with socket plugin to the electrical source and it charges easily good to carry in your car in case your iPhone gets low battery

This power pack seems to work fine and is great for those times you are out and about and need to charge your phone where other alternatives aren't available. I also use it as a power source for a decorative Firefighter LED night light I have. it works great and will power the light for hours and hours. It recharges fairly quick. I actually have two. One dedicated to my phone when out and about and the other dedicated to my LED light. The LED light came with a very short cord so where it is located there is no wall socket available so this come in very handy. I'd recommend them especially for the price.

Works in a pinch when no other power source is available. Small and easy to bring along. Downsides are short cable and it’s easily misplaced.

I purchased 3 of them cause thought $7.99 each was pretty good deal for 4000mah charger, however mine dont have the same indicator lights to let me know if they are fully charged or dead? Only have a little blue led on top when charging, but no indication if 1/2 charged, fully charged, or dead. So I was disappointed to not have the same indicator lights in online description. Still a good value charger for the price though...

Its portable and about this size of a average persons hand. Its not heavy at all but does not feel flimsy or as if it is going to break. It also charges your device relatively quickly, although not as fast as something bigger with more power behind it obviously. Still great to have on hand when you know you are gonna be out for a while without anywhere to charge your device.

This is a small battery back up. Both in size and capacity. It’s only 4000 mah but that’s very much inline with its diminutive size and price. It’s fairly light as well. It comes with a usb/micro usb cable for charging (no lighting connector if u have Apple). I like it for tossing into a pocket or backpack as it takes up little space.