Great High Powered Battery Option
597835
After starting to use a touch-screen Android phone, the HTC One Mini, I realized that I'd need an external battery in order to better enjoy this high powered device while on the go.

Although I am my family's tech support specialist, I classify myself as "knows enough to be dangerous" and will share what I learned when researching my charging and external battery needs.

The first lesson that I learned while researching external battery options was that not all USB adapter chargers are created equally. I quickly discovered that the BlackBerry chargers which I previously used for my prior mobile device was taking much too long to charge the HTC One Mini because those chargers -- also micro USB plug-in adapters-- only deliver a 0.5 amp 2.5 watt output while my factory HTC charger delivered a 1.0 amp 5.0 watt combo. In other words, the plug-in USB chargers on which I had previously relied would not deliver the charging output that i now desired.

Since there are also iPhone 4 and iPad 4 as well as Nexus 7 1st Gen devices in my household, I began a search for an external battery that could support Apple, Android, and Google Nexus 7 devices. The iPhone operates optimally when using a 1.0 amp 5.0 watt charger -- identical to the HTC One Mini's needs, the iPad juices up best when using a 2.1 amp 10.0 watt charger, and the Nexus 7 was packaged with a 2.0 amp and 10.0 watt charger.

To add further confusion, these four devices use three different USB device adapters. HTC & Nexus - micro USB; iPhone 4 - 16-pin adapter; iPad 4 - 8-pin adapter.

I tried two other external batteries strictly for the HTC One Mini before proclaiming the Power Gem as my preferred external back-up power source since the Power Gem can provide battery backup for all four of the aforementioned devices. Although I imagine that the other batteries could adapt in a pinch to provide external battery support to the Nexus, iPad, and iPhone, the Power Gem can almost completely charge the HTC One Mini whereas the others could provide less than half the charge to the HTC One Mini in the same charging period.

The Power Gem charges using a micro USB cord plug-in charger and provides two USB ports for use when acting as an external battery to charge a device. The first port is intended for devices which require > 0.5 amp 2.5 watt charge (the amperage and wattage that a standard computer USB port provides) like an iPad, iPhone, Nexus 7, or HTC One Mini. The second port is best for devices requiring the charge that a computer USB port provides like the various bluetooth ear pieces that I use and perhaps the BlackBerry which my HTC One Mini replaced.

With the Power Gem, a USB wall-plug adapter which can charge the Power Gem, the Power Gem's micro USB adapter cord, a USB to 16-pin adapter cord, and a USB to 8-pin adapter cord I am able to accomplish exactly what I had hoped when I began my search for a reliable external battery backup.
4263633
This just has the feel of a quality portable battery.  The case fits together nicely, and the battery holds the charge over weeks of no use.  Being able to charge two devices at one time is a plus, and the battery level indicators are easy to interpret.  The included flashlight feature is a nice bonus. This battery packs a lot of power into a relatively small package, and it's good to have when battery-eating devices need to be fed again.
3827134
It's taken me a while (a long while) but I've finally found an external battery pack that actually charges to full capacity in a reasonable amount of time.

Most other external batteries do NOT charge fully, and their charging indicators flash for hours at a time. The EasyAcc battery here arrived full, and after discharging it across my devices (simultaneously charging a OnePlus One, Nexus 7 2nd Gen and Fire Phone!) it charged up in a few hours to full capacity again. Not bad at all.

The batteries in this are flat pack li-ions, a higher quality than stuffing in several 18650 cells into an enclosure with a board and calling it a day, this is an actual quality external battery pack.

There is only one button to press, which shows the charge on a very small set of LED lights. Apart from that, the entire thing is just smooth plastic (which scuffs easily, mind you, and I doubt if it has ANY IPX rating) which is sleek new, but has gathered quite a bit of minor scuffing from going in and out of my backpack and one overnight trip so far. This will replace my Sentey 20800mah battery, as it is lighter by about 30% and has a smaller footprint, with a still-respectable battery capacity, which will easily last a weekend of hiking. I have added two silicon wrist-bands to keep it elevated off surfaces and prevent further scuffing.

I received this device at a discounted price in exchange for an unbiased review.
987341
This battery was a little heavier then I expected, however, it is one of the larger ones.  It fits perfectly in the Kamasi Weatherproof external battery bag with a charging cable.  Had the opportunity to use this on a hunting trip and it performed perfectly.  Although a little bigger than most external batteries, I like that I can get 3-4 full charges out of it, so the added weight will be worth it.  The price was very reasonable, especially when you compare prices of smaller batteries that may only charge your phone for 1-2 times.  I would purchase this product again.
2250594
Wow.....this thing has power....lots of power when and where you need it.  Don't waste your time with those other weak battery packs.
2420137
After a lot of research, I decided to purchase the myCharge Portable Power Bank 6000.  The key selling points are the high battery capacity and the built-in charging tips.

The unit is a bit bulkier than pocket-sized, as one might expect of a charger with this capacity, so it won't exactly fit in most people's pants.  However, you can throw it in a suitcase, backpack, or briefcase and you'll have plenty of power for your trip.  I was able to charge a Blackberry and an iPhone from empty to full capacity, with still 50% of the power left over.  It works also well on an iPad to top off the battery.

The built-in charging tips (micro USB, mini USB, and Apple connector) are great.  During my trip, I didn't have to bring along so many cords to get tangled up.  Be aware that the cords are really short -- especially the Apple one as you see in the picture.  So, it's a little bit awkward if you want to talk on the device while you charge it.  The nice thing is that it still has a full-sized USB charging port, so you can plug in a longer cord if you have it.

Overall, I'm very pleased with the product.  It really doesn't replace a smaller charger if you just want something in your pocket, but will let you have plenty of fresh power when arriving in a city after a plane ride, through a day of meetings, or while backpacking around town.  It seems well constructed, has useful power indicators, and a nice design overall.
1911999
The product is of good quality, very easy to use and it looks great!

I especially liked the large capacity of charge it held.

If you are looking for a general purpose battery to charge you portable devices in pinch, this item deserves consideration.
4036089
The battery does as advertised. The positive reviews are in no doubt, true. The only concern I had was the speed in which the Intocircuit lost its charge. I have yet to use more frequently to see if it holds a charge for several units (ie. phone, tablet) at the same time.

The build is really solid; heavy and sturdy, tough for its kind. You could say it is a bit too heavy, BUT you can't go wrong, it is well built and should last long.

The only downside I had is that the products status screen was scratched upon arrival. Minor issue I know, but some units might come scratched or look used.

All in all, great portable power solution in a sturdy package.
1094944
I bought one of these several months ago because I needed a portable power source and the size and price were attractive. It has performed so well that I have subsequently purchased two others to give to family members who needed something like this. They are impressed as well. If you are looking for a backup battery to use when you cannot find or access a wall outlet, you won't be disappointed with this. Worth the money.
3324025
works very well. A nice option to keeping spare batteries charged
3383539
Well built battery packs with an on/off switch built in
3431702
With two high capacity 18650 cells (supposedly from Panasonic or LG), this is one of the most charge dense battery packs I've seen. I was glad to see a steady 4.9V (+/- 80mV) output at 600mA charge rate. After conversion losses, you should get ~5500mAh out of it, enough to charge most cell phones twice. Mine arrived fully charged, which is a plus. The little bag and usb micro cable seem well made and are appreciated.

I cannot yet comment on the claimed 2.4A output or 2.0A input charging rates, but I'll do my best to update once I run more tests. Haven't found anyone who dissembled one of these, would love to know if there is an overtemp sensor and confirmation of the batteries rating.
2653625
I travel a pretty fair amount, and I've experimented with a few different external battery options. The New Trent Powerpak 10.0 is the first one I've used that strikes a good balance between weight/form factor and stored power. Previous external batteries were too large and too heavy to be practical; this New Trent unit is much smaller, lighter, and easily added to your existing "go bag" for on-the-go power whenever you need it. While it is listed as "pocket friendly," it's a bit heavy for that use case in my opinion. It is, though, a great option for your bag.

I was able to recharge my iPhone twice and recharge my HTC One once before the Powerpak's color-coded LED showed I had dropped to a lower level of charge. (This is one of my complaints about the device---the color-coding is not user-friendly or easy to remember. Give me a set of bars, or a numeric reading instead.) Recharging times were good; although I haven't recorded any specific times I have been generally pleased with the recharge times.

Overall, a good product at a good price point.
4086352
Excellent quality and power. Great battery life.
3774384
There are two things that set this style battery apart from the original. The first being the NiMh technology that is engineered to resist the sulfide buildup inside the batteries that led to premature failure. This is referred to as the "memory" problem in the original NiCd batteries. The second feature is the added capacity that provides for longer tool run times between charges. My old batteries were below 2000mAh so the 3000mAh is a welcome performance boost for me. I like this battery and plan on ordering a second soon so I can have one on the charger while the other is in use. The construction of my battery was flawless. The release tabs operate smoothly and the electrical contacts line up perfect. The batteries are slightly taller due to the added capacity so take that in consideration if you plan on storing the batteries in the original driver case slots. I used a Dremel tool to cut away the plastic tabs in my case so they could fit & it looks like it was made for them,
4632409
I bought this 3000mAh Ni-MH battery to replace the original Ni-Cad batteries that would no longer take a charge. As soon as it arrived,I charged it up and began using it in my 12volt Dewalt driver/drill. I am impressed with the power and performance. It sat for a few weeks and still had plenty of power upon next use. It doesn't need to be completly depleted to be recharged. Overall, great battery.
4662082
Great big battery pack.
This battery is pretty hefty, not so useful for day to day carrying but has been great for international travel.
The built in cable is great for my phone with micro usb and the sub plug in works fine for charging my iPad.
The charger does take a while to charge when plugged in, but this will mean it runs for a while too (I got 3 phone charges and 2 iPad charges before it got low).