This is a Review of UNU Ultrapack GO and TOUR external portable batteries with Ultra-X fast-charging technology. http://www.myunu.com/products/ultrapak-fast-charging-batteries.html
Some of you may noticed that I'm no longer reviewing as many different external batteries. Unfortunately, there has been very little innovation in this sector of smartphone accessories. One of the new trends I have seen so far is the increase in external battery capacity to keep up with new power hungry big screen phones and tablets. As you increase the capacity you also increase the charging time for the battery itself where in some cases even overnight charging is not enough to get to 100% ready. Realizing this shortfall, UNU engineers decided to come up with a new line of Ultra-X fast charging batteries which I got a chance to review. Here is what I found.
Since both of these batteries have a very similar design and functionality with the only difference of capacity and a number of charging ports, I decided to combine review of GO (3,000 mAh) and TOUR (10,000 mAh) Ultrapack batteries together. Both arrived in a very similar packages, only scaled in size, with a clear message of 8x Faster charging rate. The package also has a lot of useful info about the benefits of using this battery, in terms of additional hours in extended functionality, but it's all relative to your use and I typically recommend taking it with a grain of salt. The most important thing you have to realize is that once you are away from a power source and need to recharge your phone battery - you now have a portable source on the go. Also, a total advertised capacity of the external battery is not what you are actually going to see because it's based on their internal 3.7V-3.8V voltage which needs to be converted through 5V usb interface where you will loose some of this capacity due to a typical 85%-90% conversion efficiency. Therefore, you need to choose the capacity of your external backup battery based on how long you are going to be away from the power source and how many times you will need to recharge your phone or tablet battery.
With this explanation out of the way, let's take a closer look at the design and special features of UNU Ultrapack batteries. The design of GO and TOUR is almost identical with a piano finish top/bottom surface and softer material sides for a better grip. Both of the batteries have a power button which turns on a hidden LCD screen with a charging capacity info and also turns on a built-in led flashlight (convenient when you are in the dark, like during a power outage). GO features a single USB charging port rated up to 2.1A and TOUR feature a double USB port rated at 1A and 2.1A for a combined output of 3.1A. Another port they share in common is DC input charging port. Unlike most of the other external batteries with micro-usb charging port and a typical 5V/1A charging speed, here you have 12V/2.5A charging port which enables a much faster charging speed of the battery. Just keep in mind, we are not talking about faster charging speed of your phone/tablet battery, but the actual external battery itself.
Faster charging speed, up to 8x faster, means you don't have to wait hours to charge up this battery before you can start using it. As a matter of fact, it has a rapid charging mode where in 15min you get 2,000 mAh of capacity from empty. This means if you are in the rush you can still get a charging capacity boost for this backup battery in only 15min. The only catch is that you have to use a bulky wall AC adapter. It's the only drawback which is a price to pay for a fast re-charging. Another fantastic feature is the built-in LCD screen which tells you exactly in % how much battery left and also tells you how long before battery is full when you charging it up. When not turned on, the display is fully hidden under the top surface. Also, charging mechanism has it's own current regulator to optimize charging speed of your smartphone/tablet. With a smaller capacity GO, I was only able to charge my Note 2 at 1.2A speed. With dual output TOUR, Note 2 was charging at a maximum speed while S5 connected to another port only had 1.3A of charging current not to exceed a combined 3.1A output. It didn't even matter which port I had my phones connected to, either 2.1A or 1A ports were able to charge at max speed individually and current draw was regulated when two phones were connected simultaneously.
Overall, I was very impressed with performance of both batteries and all the additional bonus features they had to offer. Fast charging speed and a detailed LCD screen functionality was a very useful new feature if you are willing to pay premium price for these batteries. I know there are a lot cheaper alternatives with a similar or higher capacity, but you really have to factor in all the additional design features Ultrapack brings to the table in order to have a true comparison. And even so I typically don't review smaller capacity batteries, if you want this Ultra-X fast charging technology and LCD info screen but don't want to drag around a large and heavier TOUR, GO is a perfect solution for that.
Here are the pictures.
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Related
This is a review of NewTrent NT70T EasyPack 7000 mAh external battery charger: http://www.newtrent.com/store/andro...nt70t-external-battery-ipad-battery-pack.html
Here is another great product I discovered that will definitely benefit Note 2 users who are sticking with a regular size battery and their favorite case and need backup power on the go. This particular unit has a very portable footprint and it's relative slim with dimension of 119mm x 74mm x 18mm (4.7" x 2.9" x 0.7"). It's also pretty lightweight for 7000 mAh capacity, at 6.8 oz (193 g). It's definitely very comfortable and pocket/purse friendly. As a matter of fact, this unit is actually intended to be used on the go where you don't even have to worry about power cables since it has built in full usb cable for Input charging (a fast 5V, 1A port) and also micro-usb cable for one of the Output charging ports (5V, 1A). In addition to 1A output port with micro-usb cable, it also provides 2 additional usb ports with 2.1A and 1A outputs. These got you covered for any smart phone or tablet, and can also charge two devices at the same time.
For convenience if input charging cable is not long enough for you, New Trent also included USB extension chord which I found to be a great bonus. No other chords or adapters were included with this product. The device itself is very slick with a footprint reminding me a small external hard drive. The bottom of this power bank is finished matte while the top has a shiny piano finish. On the top you also have a discretely placed power button and 4 led power meter indicators with cool green lights. Those 4 lights partition power reading into 25% increments.
Beside its portability and convenience of built in cables, the main attraction of this device is a whooping 7000 mAh capacity. This is some serious number!!! And NT70T has this 7000 mAh speced at 3.7V - the voltage of the actual lithium battery. To be honest, I was a little skeptical at first because external battery market is flooded with a lot of high capacity external batteries that have exaggerated labels. So right away I put this battery to the test. I had my Note 2 discharged down to 25% while NT70T was charged all the way to full (4 leds lit up). I used 2.1A output port for a faster charging and used my own usb-to-micro-usb cable. My Note 2 battery got charged up to 100% in under 3 hours. That was very impressive. After charging it up, I checked with NT70T and it still had 3 leds on!!!! Of course, 3 leds doesn't mean it's at full 75% charge, but rather between 50% and 75% charge. But still, very impressive considering we are talking about our GN2 with 3100 mAh stock battery. As a bonus, you can actually charge your phone while charging NT70T, pretty cool although not recommended by manufacturer since it can accelerate aging of the battery.
In my opinion this is one of the top small footprint portable external battery chargers that offers simultaneous charging of two devices at the same time with one port being 2.1A and others at 1A, and having a whooping true 7000 mAh capacity!!! A must have if you need a portable backup battery and don't wont to part with your current Note 2 case (to accommodate bulky extended battery). I definitely recommend NT70T EasyPack!
Now, here are some pictures for your enjoyment:
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Missing letter?
vectron said:
This is a review of NewTrent NT70T EasyPack 7000 mAh external battery charger]
Click to expand...
Click to collapse
Thanks for the excellent pics, did anyone else notice the "n" missing from the word "external" in the shots of the back of the unit? Curious.
firstbrick said:
Thanks for the excellent pics, did anyone else notice the "n" missing from the word "external" in the shots of the back of the unit? Curious.
Click to expand...
Click to collapse
Good one!!!! I gotta tell these guys to fix this typo
Btw, I have their new NT120C (http://www.newtrent.com/carbonpak.html) coming my way for review - looks cool! That one is a step up with a higher capacity at 12000 mAh, although no built-in cables to give you more flexibility. Should have it sometime next week, will post a review then.
Thats a really stylish looking external battery charger.
Sent from my SPH-L900 using Tapatalk 4 Beta
This is a review of Anker Astro2 (2nd generation) 9000 mAh external battery: http://www.ianker.com/product/79AN7903-BA
Just a short while ago Anker introduced their next gen Astro3 battery. Following it's footsteps now comes next gen of Astro2 with all new design details introduced in Astro3 but in scaled down version of it. Some might argue it has a reduced capacity and one less charging usb port in comparison to Astro3, while the price difference is not that significant. So why would someone choose one over the other? Let's find out.
First of all, I'm glad to see how Anker switched to all new packaging across all of their latest products, using environmentally safe recycled material and minimum amount of plastic. The battery itself uses a nice soft touch rubbery material that will not leave any fingerprints and gives you non-slippery grip. The shape of the battery has rounded off edges and is very comfortable to hold. With my measured dimensions of 105mm x 60mm x 23mm and reduced weight down to 7.7 oz (218 g) - this battery is relatively light and very pocket friendly. It comes with micro-usb input capable of 1.2A charging rate for a faster charging of the battery itself, and 2 full size usb charging ports one labeled as Smart Output with 2.4A max charging speed and another one labeled as Universal Output able to support up to 3A of charging current. Per confirmation from Astro3 which also has Smart Output with 2.4A - that port will charge your latest iPad at max speed! Universal Output will be able to support any latest smart phone with a full 2A charging speed. Both ports can be used simultaneously for a combined charge output of 3A. I have verified charging my Note 2 at 2A and Nexus 7 at approximately 1A charging speed simultaneously. In addition you also get micro-usb cable, 30-pin apple adapter, and a very nice mesh storage bag.
Just like with Astro3, this new Astro2 uses a 10-segment led indicator which breaks down charging capacity in increments of 10% instead of typical 4-led batteries with 25% increments. The led lights are not visible until you shake the battery to reveal remaining segments. While you charging battery itself, those will stay up indicating charging progress. What sets this 2nd gen battery apart from so many other external batteries available today is the efficiency. As I mention in all of my ext battery reviews, the labeled capacity is not the actual capacity because you loose energy during conversion through usb output port. Typical ext battery looses on average 30-35% thus you are getting only 2/3 of the actual capacity. The new 2nd gen of Astro3 and Astro2 have 80% efficiency, thus you are loosing only 20%. I was able to confirm that with multiple charges an average of 78% which is close to advertised 80%. It means that you should have no problem getting 7000 mAh from this battery.
Overall, in my conclusion I want to make a point about Astro2 vs Astro3. Both are fantastic batteries with innovative design and very impressive efficiency. One has higher capacity and additional usb charging port while the pricing is very close in comparison, especially with the latest Back-to-School sale on Astro3. So why would you choose Astro2 over Astro3? The deciding factors are the size/weight/portability. If you need to carry your ext battery in a pocket or a smaller purse - Astro2 will be the way to go. Just look at side-by-side pictures. That's what it really comes down to.
Here are the pictures.
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For some of you coming from phones with removable batteries, you may have some anxiety about running out of battery life and not being able to swap a spare in. I was the same way a year ago, but I didn’t let that fear keep me from buying a newer phone without a removable battery. So I decided to just grab a few portable chargers to use and I’m glad I did.
Below is a comparison of the portable chargers I have. To try and compare them as fair as possible, the process was simple. Reboot the phone, fire up the stopwatch, set to 15 minutes, shut off the screen, plug in the charger, and leave it alone. The readings were taken from Battery Monitor Widget which was set to update the history every 60 seconds. I used a charging cable from my HTC EVO 4G LTE. I didn’t have my N5 charging cable with me and we know sometimes the cable can play a big role. So take that in to consideration if you think my numbers are off.
The portable chargers from left to right.
1.New Trent iCarrier 12000mAh Portable Dual USB Port - $39.95 (Amazon)
*The one I have is an older model which doesn’t included the “Recharge by USB” option. Mine can only be recharged via AC Wall Adapter. The new model has both options but doesn’t included the wall chargers.
2. Anker® Astro 5600mAh Portable Power Bank - $29.99 (Amazon)
3. Anker Astro Mini 3000mAh Ultra-Compact Portable Charger Lipstick-Sized - $19.99 (Amazon)
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Test Results:
Review for Each:
New Trent:
I originally bought this to be used with my Nexus 7 (2012) since it was REALLY picky about what could charge it. You can tell this is a lot bulkier than the other two and isn’t something you’ll throw in your pocket. I keep this in my backpack and only use it when I don’t plan on moving around. Or if there are two people/devices that need to be charged. The plastic housing feels a little cheap, but I understand the idea was to keep the weight down on an already ‘heavier’ portable charger. It has held up well.
I’ve used this thing 3-4 times on my phones without it dying which is nice. This one re-charges using a AC Wall Charger (No longer included) or via USB (5v 2A…no charger included). NOTE: I have the older model which does not have the “Charge via USB” option. Only the AC wall charger option which it did come with. I can’t imagine how long it would take to charge via USB. It already takes a long time using the AC Wall Adapter.
Anker Astro:
This has been my Go-To portable charger for over a year. And it still charges my phone at least twice. When it comes to size vs. capability it is the clear winner. It also includes a LED Flashlight built in. There is a 4 light meter that tells you the status of the battery when charging a device or when being charged itself. Or you can just hit the button to see how full it is.
It can easily fit in your pocket or purse. I have a few very short micro-usb cables laying around so I’ll bring that with me too so I don’t have a 3ft cable in my pocket.
Anker Astro Mini:
I just bought this on sale and was surprised at it’s weight when it arrived. It has a metal casing so that probably adds to the weight. The fit/finish is very nice looking. When holding this in one hand and the Anker Astro in the other, you don’t feel much of a difference. Yes the Mini is round/smaller, but it isn’t a huge difference for me. The mini fits in your pocket nice.
If you are looking for something very portable, a little cheaper than the other options, and a charger that will charge you up once (maybe 1.5 times), then this is a good option. But if you may think you’ll need the portable charger for more than 1 charge while out, go with the Anker Astro (5600 mAh).
I have the Anker astro, but it takes AGES to charge my n5, almost as if it was being detected as a pc usb port rather than a charger.. any ideas? Stock rooted...
crazyguns said:
I have the Anker astro, but it takes AGES to charge my n5, almost as if it was being detected as a pc usb port rather than a charger.. any ideas? Stock rooted...
Click to expand...
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What cable are you using with it?
Get the battery monitor widget app and see what it says when plugged in.
Nice quick review.
Strange that New Trent 2A output is less powerful then regular usb..
And the average charging mA for Astro mini seems bit lower than it should be. Both Astros have the same output rating, arent they?
kmckmc said:
Nice quick review.
Strange that New Trent 2A output is less powerful then regular usb..
And the average charging mA for Astro mini seems bit lower than it should be. Both Astros have the same output rating, arent they?
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Yes, Both Astro devices have the same output rating.
This seems a very interesting device
AUKEY 20000mAh Power Bank with Lightning Input
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Unboxing
The Power Bank comes with an eco-friendly packaging and basic accessories: 1x Micro-USB Cable, 1x User Manual, 1x Warranty Card and the Power Bank (of course).
Its chassis is made of Plastic, pretty solid and it reminds a sort of Modular design (it isn’t modular though).
On the front, there is a Power Button with a LED, used to check the battery level.
It is pretty smart, as you can see from this image.
There are 2 USB ports available, with 5V/2.4A output, featuring the usual technology called “AIO” from AUKEY that works on the voltage depending on the attached device. Follow my next paragraph to know more. There are two types of USB inputs: Micro-USB & Lightning.
Together with the USB ports, there is also an useful (even if not extremely powerful) Flashlight that can be turned on by long-pressing the Power Button.
As regards the size, being a 20000mAh battery, it is bit bulky and heavy, but it is rare to find something smaller with the same capacity.
Efficiency
All tests have been done using AUKEY’s Cables, in order to get maximum efficiency and to avoid any possible issue.
I have tested the “AIO” USB Ports using my USB Capacitor (1A/2A), and the voltage seems to get a bit too much low on high-load. Unfortunately this is a common issue (well, it isn’t a real issue, but a limit), so you can’t expect the same voltage that you get using a standard AC charger.
I have measured its capacity using my USB Tester, and sincerely it disappointed me a bit because real capacity is considerably lower than declared. (20000mAh vs 16664mAh)
While charging, it reached just 37°C, the coolest power bank I ever tried.
Conclusions
Well...its hard to express an opinion about this power bank. It is solid, smart, but it isn’t perfect. Battery Capacity doesn’t match declared value (at least on mine) and there is no Quick Charge support, but it has a Flashlight and a Lightning input for Apple users.
So...do I recommend it? If you are an Apple user, and if you don’t mind about Quick Charge, then Yes, otherwise just go for something else, such as the smaller (16000mAh) variant with Quick Charge or other brands.
Pros:
- Flashlight
- Lightning Input
- Solid
- Smart Power LED
Cons:
- Real Battery Capacity is lower than Declared
- No Quick Charge support
Rating: 8.3
Packaging and Accessories: 7.5
Design and Materials: 9
Performance and Efficiency: 8
Price: 9 (based on Amazon price)
Official Product page: http://www.aukey.com/product/PB-N36
You can find full-res images (I know, Quality isn't excellent) here: http://imgur.com/a/v800H
Cons:
- Real Battery Capacity is lower than Declared
- No Quick Charge support
You did not consider the DC/CD conversion ratio and efficiency. The manufacturer states that the power bank has 20000mAh capacity @ 3.7V nominal battery voltage.
That's 74Wh. It's written on the case.
You discharged 16664 mAh while the output voltage was 4.85V. That's 80.82 Wh. Already higher than 74Wh.
But the DC/DC conversion efficiency is lower than 100%. It should be somewhere 85% and 90% since Aukey is using very well built synchronous converters.
So the real energy pool of the power bank is somewhere between 89.8 Wh and 95.1 Wh before the conversion.
At the nominal 3.7V battery voltage that's between 24270 and 25700 mAh.
Which means that in fact You got a much better battery than specified.
Quick charge is supported in PB-T5 ( QC 2.0 ) PB-T10 ( QC 3.0 ). These are the same power banks but equipped with quick charge ports.
Dont't expect quick charge when You purchase the only model from 3 similar which is intentionally not quick charge capable.
Thanks, good review.
AllMaybe Dual USB Wall Chargers - Standard (EU2-ST) and Quick Charge (EU2)
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Unboxing
Since i got both variants of the charger, this will be an unified review with detailed comparisions.
Photos Order: Standard variant on the left, Quick Charge variant on the right.
Compared to the desktop charging station reviewed a while ago, this new wall charger doesn't come with many accessories: 1x User Manual with a nice specs sheet, 1x Warranty Card and the Charger (of course). No USB Cables included.
Both models share the same chassis, only the color is different: Black for the Standard variant and White for the Quick Charge variant. It feels solid and there are no annoying glossy parts that can get dirty and scratched really easily.
On one side, there is the LCD screen (more details in the next paragraph) covered by a plastic surface. This surface doesn't look 100% new even after removing the protective film, and is also easy to scratch, so be careful with it (of course this doesn't mean that all units face the same issue, but it is still worth to be reported).
On the side opposite to the power plug (that is foldable), there are 2x USB Ports (with a small marking above each port, "QC 3.0" or "2.4A" depending on the model) and a button required to switch the measurement between each port.
As regards the size, it is probably the most compact dual-usb wall charger i have ever tried, just 62.4x55.0x2.82mm (same for both models) with a weight of 87g for the Standard model and 101g for the Quick Charge model. Of course the latter weights more since it is the most powerful.
Efficiency and Power Meter
Since i am mad when it comes to power efficiency and real output power, i got a crazy USB tester some weeks ago to stress all chargers and cables i own to the max. Of course both of these chargers will receive the same treatment. ^^
NOTE: In order to make sure that the built-in power meter is accurate, each test has been made using also my reliable high-quality USB tester.
As you can easily notice, the screen shows the USB port currently selected with voltage output, current output and the amount of total current drawn since its connection to the socket. Also, it features a nice blue backlight that can be dimmed by long-pressing the button, definetely a plus compared to standard chargers.
Starting from the no-load test (on idle), the voltage appears to be quite stable, maybe higher than usual for the standard variant, but still OK to comply with USB standards.
Stressing both chargers to the maximum rated specs (5V/2.4A for the standard variant and 5V/3A for the Quick Charge variant), the result is quite impressive.
The Quick Charge variant reached a voltage of 5.15V under 3A of load, and the Standard variant reached 5.21V under 2.4A of load. Excellent results, definitely able to handle high resistance (high AWG) USB cables.
Considering the excellent result i thought...what about stressing each charger to the max? Well, since the Quick Charge variant is already maxed out (don't want to go over 3A for safety reasons), i did this test only with the standard variant, by increasing the load over 2.4A. The maximum it can reach without tripping the overload protection is ~2.78A while keeping the same voltage of 5.21V!
A test dedicated to the QC 3.0 variant is, of course, the test made using a Quick Charge capable device connected to it. Both my smartphone (LeEco Le 2) and power bank (iVoler 10000mAh) managed to use the Quick Charge capabilities of the charger, no compatibility issues noticed even with other devices.
As regards the noise level, i wasn't able to hear any buzzling noise (or high-pitched sound) even while doing the extreme test so i can confirm that high quality components have been used.
Conclusions
It is nice to see that AllMaybe followed user feedbacks and tried to provide one of the most complete wall charger i have ever seen. I am not sure whether the idea of placing a power meter is unique or not, but it is really useful and reduces the risks to connect a device with a poor USB cable, that would result in unstable battery charging or, even worse, permanent damage to the cable or device connected.
Honestly, i am not able to find any serious issue with any of these chargers. Based on the user's needs, it is possible to choose the variant required with or without Quick Charge, and the power output is just perfect. Maybe the only thing i would appreciate with next models is the inclusion of at least one USB Cable (Micro-USB + Type-C, 2-in-1 variant), and why not, a multi-usb charging station featuring the same power meter.
So, do i recommend them? Yes, with no doubts. Just choose the one that fits more your requirements, even though the Quick Charge variant is always the best choice, being future-proof .
Pros:
- Excellent Power Output
- Useful and Reliable Power Meter
- Overload Protection
- Quick Charge support (for the EU2 model)
Cons:
- No EU plug variant available
- Easy to scratch LCD plastic surface
Rating: 9
Packaging and Accessories: 7
Design and Materials: 10
Performance and Efficiency: 10
Price: 9 (based on Amazon price)
You can find full-res images (I know, Quality isn't excellent) here: https://imgur.com/a/XaRlV
Official Product Page: http://www.allmaybe.com/products_detail/productId=46.html (EU2-ST Standard) & http://www.allmaybe.com/products_detail/productId=44.html (EU2 - QC 3.0)
You can buy it on many online shops. Official, and authorized, Retailers are listed in the AllMaybe website.