Customer Ratings & Reviews

Very easy to use and the digital readout is a plus factor. Use it for my Go-Pro camera when out fishing. Also inexpensive compared to others.

This battery is extremely thin and lightweight, my iPhone can be recharged with this battery in around an hour; great when you are in a hurry. I would recommend this battery to anyone that is need of a fast recharge capability while traveling. The digital display is a nice touch, you can easily see the percentage amount left on the battery instead of looking at dots.

I've bought way too many battery packs over the last few years, but none have proved to be better than these REV products, But..... what happened BestBuy, they disappeared. I bought at least 10 of these. They hold their charge, don't get hot, they tell you how much charge you have digitally. They are small, and light compared to their peers. Great product and quality.

excellent power bank, holds a charge for a long time and can fully charge a smart phone and still have juice left over

I'm in sales and this has saved me several times either by charging my phone, iPad or laptop. Can't believe I went this long without one.

Purchased this charger as I am out in the field with work more these days. It's batteryour is large enough to give me a full recharge in a very timely manner on my LG g4, thanks to the 2 amp outlet. Recharging of the battery pack is a bit slow, but I just do it overnight and it shuts off when it's charged. Very slim, disappears into my pocket.

These portable chargers can be a lifesaver if you aren't around an electric source or the power goes out....this unit works very well

This little box holds a powerful punch. When your phone, tablet, portable speaker, needs a little more power when your battery dies.

My daughter could not survive without her charger! It is compact and very convenient. It quickly charges her phone.

This portable charger is good for travel, charges two iPhones at the same time, good battery life

I bought this product because my iPhone battery does not hold a charge very well anymore and I looked at a few different makes/models. I wanted something that could do more than just one full charge and that had multiple ports. What I really love about this charger is the LED battery percentage on the front so that I can see how much battery there is left to charge my multiple devices.

You can't beat the price! It gives you one full phone charge. It doesn't really work with an iPad even though it says on the package it does. It takes awhile to recharge the portable device but it charges your phone pretty quickly. The digital power countdown is nice too

I bought this as a simple backup solution when traveling. It's small enough to fit into your pocket and is light weight. What I like is the LED display which shows you exactly how much battery power is left. It has two USB charge ports at two different power levels, 1amp and 2amps. So far, no problems at all.

Great bang for your buck item. It charges decently fast and can even charge two at a time. Portable and easy to use.

I love it. Not to big so it fits in my pocket and it chatges my phone fairly quickly

From 0 percent has taken 4-6 hours to recharge on wall power. Recharg from laptop close to 6 but seems to be getting faster. Not sure why. iPhone 5 I've gotten 2 full recharges with dome power left over. Has 1amp and 2.4 outputs. Used both at once with goid recharge on both items. For size I think the rev4 is good match for business travel when you can't find a power source but more importantly when your low on power in a meeting

Took a blind shot at this portable charger without knowing anything about the brand. Charges my phone pretty quickly and has a charge left over in case I need additional power. Love the digital indicator that lets me know how much of a charge is left on the unit! Works beautifully!!

small enough to easily carry in my purse but gives my phone/tablet double the operating time.

Super slim to fit in my purse. Easy to charge and use

fits in jacket pocket easily. light. & the juice gets me through the day.