Pros: Lasts a long time for my Tracfone smartphone. Has dual 1A & 2.4A charging ports

Cons: None

Other Thoughts: I alternate between a pair of Deluxe models (RB PB-35, this one with a 16,750mAh battery) and (RB PB-13, a same physical size in white device with a 14,000 mAh battery)

Pros: Capacity vs: cost is really good - well made - nice design - easy to figure out how it works.

Cons: This was advertised and sold as an upgraded spec, however the capacity printed on the back of the device and in the printed literature is less than advertised. Has lots of capacity but I am disappointed that at least labeling wise I was sold and item that was less than as advertised.

Other Thoughts: I originally bought this for my wife to charge her iPad and thought I would occasionally use it to charge mine. We rarely take them out of the house and continue to charge those devices on the line powered chargers.
What I found was really useful for this power bank is to use it to charge up all the other USB charged gadgets, and the large capacity lets me recharge a number of devices multiple times before needing a recharge. So now I've been able to eliminate the gaggle of wires coming off my USB ports on my laptop or my multi port wall charger.
So far I've experienced no problems, seems to be well built and when I use it up I'll look for this brand again. I'm more satisfied with it than several other manufacturers that are not as well made, confusing to use, and their durability is questionable.

Pros: none i never got to use the item

Cons: was doa i know things like this happen and i was going to rma the item but it cost more to ship it back than it cost to get the item

Pros: I have the Ravpower RP-PB07 which will not charge a recent phone that I purchased. The 2.4A iSmart output of RP-PB35 is able to charge the 3000mAh battery on the newer phone at least 3 times.

Cons: The power cuts out after a minute or so if I use it with a USB LED lamp. The older RP-PB07 does not have this issue. The built in LED flashlight is dim. Takes overnight to charge even with a 2.4A AC charger.

Other Thoughts: Plan on charging this battery pack well ahead of time before you put it to use. Might not charge other devices such as MP3 players.

Pros: 2.4A output on 1 port 1A on second. Charges within a few hours when using fast charger for Nexus 6.
Charged my Nexus 6 twice from 5%, My wife's Note4 3 times and still had 1 bar before I recharged it. More than enough power to charge two devices at the same time.

Cons: Doesn't come with a charger

Pros: - Adapters and Cables included
- Size is roughly the same as a 2.5" hard drive
- Will charge a smart phone 4-6 times before needing to be charged.

Cons: None.

Other Thoughts: This thing is huge..... when it comes to mAh. 16000 to be exact. This little guy stores a lot of juice and will charge your mobile devices multiple times before needing to be charged again. It does however take hours to charge back up. I did not deduct eggs because this is to be expected. It's got a big battery and it takes time to charge. This is great for trips away from wall outlets and charge stations. Great buy. First RAVPower product and I love it.

Pros: Good built quality
Nice black matte finish that doesn't attract fingerprints
No sharp corners that would scratch a device placed in the same bag
Comes with two usb cords: the flat, tangle-free kind
Comes with some interesting adapters: mini usb (which used to be on everything!) is the only one I have any use for, but there's also adapters for proprietary nokia and samsung connectors, which I imagine would be a nice bonus for anyone with compatible devices
One of the ports outputs 2.4 Amps, which makes for very fast charging of devices that are capable of accepting it
The battery itself is capable of charging at 1.5 amps if you have a charger that can provide it, which greatly speeds up charge time on such a high-capacity device
Compact *for its size*
Charges two devices at once
Most importantly, has a huge capacity. 16000 mAh is enough to charge my phone completely six times over. Or, for more typical use, it keeps my phone and tablet charged all day through almost any normal level of usage.

Cons: Too big to be comfortably pocketable, and certainly not in the same pocket as a phone or other device
It does not automatically begin charging a device when plugged in; you have to push the circular button. I guess I understand why they made it that way, but it can be easy to forget that extra step and find out later on that your phone hasn't been charging
Not really a con, but the flashlight function doesn't add much utility--any phone already has that, as do a good number of tablets
No AC adapter

Other Thoughts: I've owned a number of similar devices and this is one of my favorites. The way I see it, once you get past a pocketable size (which maxes out at about 8000mAh), then give me the highest capacity that's reasonably possible. This device has a tremendously high capacity, and it's well built and works well to boot.

Pros: 16,000 mAh of power in a small package easy to carry with you. 2 ismart ports for correct charge for your device. Led flashlight also. There is a blue light bar to let you know how much power is available and can also tell when its charged! Enough power to charge your phone multiple times.

Cons: None I can tell.

Pros: -Compact
-LED Flash light
-2 USB ports
-Portable

When looking for external battery charger Ravpower is the name you want to look for. All of my chargers are from them and I have yet to have a single issue with any of them. Great products from a great company.

Cons: NONE

Pros: This is an amazing battery pack! The reason it is so great is because it's very well built and it hold a ton of power. My friend said he bout a battery pack for about 40 bucks. He said it was 4000 mah. I started to laugh that he had just blown his money. I showed him my battery pack and he instantly got jealous. He said that this was a great sized battery pack and he could fit it in various places around and inside his body. This battery pack comes with an led light and charges your phone very fast. It doesn't take too long to charge the pack but it doesn't take long at all to charge my phone. I love it!

Cons: None!