FREMO M66 6000mAh Lithium Polymer Power Bank External Battery Charger for iPhone, iPad, Galaxy S5, S4, Note 3, HTC One, PS Vista and other Smartphones and Tablets

Pros: Excellent backup power when needed for phones, and small blue tooth accessories. Charged my Galaxy S3 TWO times with power to spare. Very slim aluminum case fits easily in your pocket and is just a little smaller than a Galaxy S3 phone. Measures roughly 3/8" x 2.5" x 4". Does not come with a power supply for charging but can be easily connected to a computer with the supplied cable for charging with a usb port. I prefer to use my phones charger as it appears to charge the power bank much faster than with a computer. Also can be charged in your car with your phones' car power cord! LED's will let you how much charge it is holding prior to use by pressing the button. LED's will stay lit while charging also informing you with a glance how much remaining power is left for charging!

Cons: None at all!

Overall Review: I snagged a couple of these when they were on sale. One for the car and one to carry with me.

Pros: Great Bang for the buck if you get on sale! I got mine for 10$ after a shell shocker + coupon code deal. Solid Ports and connections, extremely well built Aluminum housing dissipates heat very well, keeps the unit from overheating. Power output is higher than rated, around 1.5A @ 5.0V Flat profile and small size is perfect for keeping it in your pocket Great power capacity for a unit of this size. Will keep your smartphone or tablet playing Netfilx all day

Cons: Does not have auto on feature when you want to recharge something, you have to press the power button for it to start discharging. Not stated capacity of 6000mAh. After a few complete discharge and charge cycles, I have determined the actual working capacity of this power bank to be approximately 4000mAh.

Overall Review: As with all power banks on the market, the advertised capacity is never the true working capacity. The battery has to retain some juice so it doesn't go bad. You always have to figure about 50-75% is usable juice. The Scud Elf, a power bank to be this small and this flat (the size of a iPhone 4s), 4000 mA is an amazing. It takes about 4 hrs to recharge on a 1A charger from empty to full. I wouldn't recommend using a 2.1 A charger cause it will shorten the life of the unit. I was really surprised as this power bank will output more power than it is rated. I would estimate about 1.5 A out, it powers and charges my Samsung Galaxy Note 8.0 even while I'm surfing the net and watching NCIS. My HTC One M7 loves it as its partner I get two full recharges. This is a great buy, but i would not spend more that $20 for it, For a $29+ price range, I would look at a RavPower power bank, they have bigger capacities, great components and reliability.

Pros: Well. When it worked it was great.

Cons: The on/off switch busted off because of a bad solder job. If you have this be careful with treating the on/off switch with great care.

Overall Review: I have had the unit for just over 60 days. I would have thought it would have lasted at least through the Holidays. Nope. I inspected where the switch came off and the solder didn't adhere to the switch contacts good. It is very small and I have skill with soldering and a solder station, so I will try to reattach it since it no longer under warranty. If you have other units with a very small on/off switch I would be very cautious when turning the unit on and off. When I inspected the control board the solder joints all look of poor quality. Just my experience, hope yours was better.

Pros: Lasts a long time. Charged my iPhone 5s from 0% to 100% twice on one charge. Indicator lights work well.

Cons: None so far, but it didn't hurt that it was only $5 delivered when I bought it.

Overall Review: Good product, no real complaints so far.

Pros: i give this 5 eggs because it came with my purchase of the MSI Ghost gaming laptop. it has the ability to charge my iphone about 3-4 times. the charging time varies between USB power and AC outlet power.

Cons: it can't charge a blackberry, but i blame blackberry for that.

Pros: Prompt delivery.

Cons: Similar to other reviews, the battery did not hold charge and would not charge any device. Returned.

Pros: It charges the device it is plugged into.

Cons: Ordered it december 22nd 2014, used it 4 times. The power button no longer works. It is stuck in the on position. The item supposedly comes with a 1 year warranty from the manufacturer but they don't answer to emails.

Pros: When it worked it worked. Charged phone quicker than wall charger. Small and looks good.

Cons: Both of the charge ports started to sometimes not activate after one month. The ports had to be held down or push in certain way to work. Didn't expect it to fail so soon =(

Overall Review: Not worth it when it failed so easily. Not even worth the RMA with the cost to ship, etc.