http://www.amazon.com/Anker-Portabl...?ie=UTF8&qid=1389368123&sr=8-6&keywords=anker
Anker 2nd Gen Astro2 9000mAh
Manufacturer Description
Charges the iPhone 4+ times and large-capacity phones like the Galaxy S4 almost three times. Total charge output of 3A among two charging ports. One Smart Port (5V / 2.4A max) offers truly maximum speed charges to ANY device, including the iPad or even the Samsung Galaxy Tab. One additional port charges Android smartphones at full speed.
High energy efficiency rate, 10% above previous generation Astros and many current standard alternatives, gives you up to an extra full charge for your smartphone. Sturdy construction and matte finish withstands bumps and drops. Grade A cells and premium chips ensure reliability.
A "shake" starts a charge or displays the remaining power level. The ultra-low power consumption (100, 000 shakes consumes less than 1%) Smart LED display, designed with 10 LEDs, balances accuracy and aesthetics.
Input: 5V / 1.2A; Use a 1.2A adapter for fastest charging time (8 hours).
Packaging
It’s simple and minimal which is a good thing. Also, the Packaging is recyclable for you ECO friendly people out there.
Specs
Package contents: Anker® 2nd Generation Astro2 External Battery, Micro USB cable, travel pouch, instruction manual.
It’s about the perfect size for a battery pack. Easily handled with one hand, not too thick.
Here are the output details for the two ports based upon the type of device you are trying to charge:
Type of product-----------------Smart Port------Universal Port
iPad IOS 5 and above----------2.4 Amps--------1.5 Amps
iPad below IOS 5----------------2.4 Amps--------N/A
iPhone IOS 5 and above-------1 Amp------------½ Amp
iPhone below IOS 5------------1 Amp------------N/A
Android Phones-----------------1.5 Amps--------1.5 Amps
Android Tablets-----------------2 Amps-----------2 Amps
Samsung Galaxy Tablets------2 Amps-----------N/A
Other cellphones---------------1.5 Amps--------1.5 Amps
Build Quality
It’s made of plastic but of a very good build. It has a two tone look of glossy black ends with the rest being a matte black. It’s seemless from the transition from the glossy to matte. There doesn’t seem to be any gaps between the pieces. All ports are at on end. It has a ring indicators with 10 “pies”. Each pie represents 10% charge of the battery pack. It’s a nice soft white light and not too birght that a lot of electronics suffer from.
It just has one Anker logo at the top and very minimalistic.
Testing/Performance
It has a Shake feature to activate charging. Simply plug in a device and give it a quick shake and the device and start charging. Now I know what you’re thinking; leaving it in your bag will discharge the battery for no reason if nothing is plugged in. That isn’t true, it has a super smart super low discharge even when left in a bag where accidental shakes will happen.
I decided to test this out. Leaving it my baby nieces rocker, it didn’t even discharge 1 pie (10%) when left over 18 hours in the rocker.
Using the following devices:
Nexus 5
Nexus 7 2013
S3
Ipad 4
Ipad 2
Sansa Clip Zip Mp3 player
All were able to be charged without a hitch. It is to note that the max output is 3 amps. So trying to charge two devices that require 2.1 amps is simply not possible at full speed. It would charge t but at a slow rate. It can charge a 2.1 and 1 amp device without a hiccup though.
Either port would be fine for any smartphone under the sun.
Using a Nexus 5 at 26%:
30 mins – 55%
1h 13 mins – 91%
1h 28 mins – 100%
It used 3 pies (30%) to go from 26% to 100%.
Conclusion
It’s a great battery pack that has a nice shake feature! One of the better sized battery packs that has a good capacity compared to its size. A must have all tech warriors on the go.
Note- I was supplied a sample for test and evaluation, and I promised that my review is fair and honest
Did you buy this or was it a gift from Anker for review?
This is a great device. I have the 13Ah charger, and it seriously holds a charge. I've never gotten it empty before because it'll charge my phone for a week. Looking forward to the next time I fly so I can use it.
Any chance you could actually test the output with a 12w ipad? I just got a new anker astro3, and it only charger at 2.1, not a 2.4amp
Easiest way to test it is to download "batterylife"(free) in cydia, or time charging the default charger compared to the anker.
Thank you! It is advertised everywhere as 2.4amp, but it seems like they do not have that feature!
Power bank as gadgets are very popular these days because they can be very useful for smartphones or similar devices.
So today I will try to introduce to you EasyAcc Monster which actually have huge capacity 26000mAh.
Talking about the build quality and design it is more or less the same as any other power bank. The case is made of plastic
and very interesting information is definitely weight (454g). So I think the capacity could be real.
EasyAcc Monster has four Smart USB ports and because of that you can charge four different devices at the same time with
maximum output 5V 4.8A depending on the device. So you can charge the smartphone in same way like you do that with your DC charger.
For charging itself it has two micro USB ports. I think this is a good idea because you can charge the power bank
much faster than usual and you don't need to wait too much. You can charge it with maximum input DC 5V 4A.
So it is completely up to because you can charge it with one charger or 2.
Lately I saw several other Power banks and they all have built in LED flashlight. Obviously this is must have
equipment and because of that EasyAcc Monster has also LED flashlight which actually is very strong and can be useful in some situations.
So all of you are wondering is the capacity 26000mAh real or fake, because many of you saw batteries with
fake capacity and this is nothing new today. So in my test with calculations these power bank has approximately
20000mAh capacity and for me this is a good score because there are no large deviations.
Anyway if you need more information about EasyAcc Monster power bank you could visit thier official website.
Overview
Quick summary - great little device really solid and well balanced with three output slots to charge two devices. The hugh 10,000mah it enough to keep several devices topped up for quite some time. Despite its capacity its not too heavy, mine weighed in at 246g / 8.7oz).
Unboxing
So in the box is the battery pack, a short black USB lead and the instructions. The battery pack has a really large capacity at 10k mah which is enough to charge a Galaxy S6 up a few times before itself requiring recharging. The battery pack is black plastic body with orange plastic trim on the top and bottom. There is three USB outputs all at the top of the unit.
Despite the capacity of the internal battery the weight of this doesnt feel too bad, weighing in at 246g which is really isnt that heavy and the slim profile means that it will slot into a jeans pocket no problem.
On the front are 4 little blue LEDs which light up to show the capacity. In theory each dot should be enough to deliver 2,500mah of juice so in theory each light of power should easily charge any modern smartphone, just for reference the capacity of my Galaxy S6 is 2550mah. On one side is a plastic button you can press to view the charge or turn the pack on when you want to start charging a device. Lumsing doesn't specify the rating of each, but the device's maximum power output is 16W. That means with three devices connected charging will be pretty slow, with just 5W available from each. Testing out each port with Ampre the average output for my Galaxy S6 was 1000ma, it charged my S6 fairly quickly (about 1 hour 30) from nearly empty so the device delivers a amount of power from each port when charging a single device.
Overall I really like this pack, its nice, solid and premium feeling, works well and having three output ports is always a plus and pretty handy with lots of devices being USB powered, thi feels like the main selling point for this device. I can see this being used by people away long long trips or away camping or hiking where there is no access to an outlet to keep your smart device topped up. I really like the slim design which means it can fit in a pocket nice and easily.
So I'm in my junior year of electrical engineering and seeing the incredible things done with smartphones is something I really would like to be a part of one day. I wanted to discuss, considering the limits of current technology, if it would be possible to create a safe Dash Charging power bank for this device? For those who don't know how dash charging works I'll post a few links and my understanding of how it works and if I'm wrong at any point feel free to correct me.
Dash Charging - The Technology
The way dash charging works, as I understand it, is that the USB-C cable wires are made wider in diameter to accommodate a larger amount of current being passed through to the battery. The charger plugged into the wall takes on the burden of the extra voltage pushing the current through the wire and keeping it away from the phone's internal battery (which is brilliant). That means that the charger takes on the extra heat which isn't a problem because passive components are often more tolerant of heat than batteries are.
Links:
http://www.phonearena.com/news/How-it-works-Dash-Charge-fast-charging-on-the-OnePlus-3_id82646
http://www.trustedreviews.com/opinions/what-is-dash-charge-oneplus-3
The Issues
A dash power bank could be charged up exactly like the phone; with the dash charger it could fill extremely fast. However, using the battery pack to charge the phone means that the internal Li-Ion batteries of that charger will be taking on the extra heat from within the case which could:
a) shorten the power bank's life span
b) Possibly lead to unsafe power banks if it got too hot
I also see there being limitations with the power bank's ability to maintain a full speed charge similar to wall charging along with what types of batteries would be needed to provide the power output similar to the dash charger.
The Solutions
So in my limited knowledge I think that the biggest enemy here is heat generated in the power bank. I feel like the rest could be overcome with a fairly large bank of 18650 batteries. It is possible to have a passive cooling system built into the power bank for heat dissipation but that might make the battery bank difficult for users to hold on their Pokemon Go outings. Also, reducing Dash Charging specifications just a little, decreasing the speed at which it could charge the device, would alleviate some of the concern. So while you might not get 60% in 30 minutes from the wall, perhaps aiming for 45-50% charge in that amount of time would increase the power bank lifespan and total amount of charges.
What do you all think? I'll readily admit I don't understand completely how current battery bank internals work to limit over-current and over-voltage scenarios as I've never taken one apart. If anyone wants to educate me and say whether they think Dash Charging is possible I'd love to hear about it. This is the kind of stuff I imagine the OnePlus engineers are sitting around working on every week.
i think that would be too expensive to make for consumers, u figure if a dash charge block is almost $30.00 this thing would be well over $500.00 which would be too much for a regular consumer to purchase just to have a portable charger, maybe in about the 3rd or 4th generation of this technology we could see one in about 5 years, they would rather make a ton of 30.00 purchases and have you buy their charge block opposed to very little purchases of about 500.00 for power bank
It's actually already there in the market,
named "OPPO VOOC Powerbank"
attached is mine, working fine with OP3 Dash,
Price is around $45-50 - 6000mAH
Charging rate is 3,5A
and it DOES charge my device up to 60-70% in 30 Minutes
it heat up though, especially near the plug (USB C end)
this is why i use the metal based USB C adapter, so it release the heat faster
otonieru said:
It's actually already there in the market,
named "OPPO VOOC Powerbank"
attached is mine, working fine with OP3 Dash,
Price is around $45-50 - 6000mAH
Charging rate is 3,5A
and it DOES charge my device up to 60-70% in 30 Minutes
it heat up though, especially near the plug (USB C end)
this is why i use the metal based USB C adapter, so it release the heat faster
Click to expand...
Click to collapse
I had no idea that even existed. I'm going to look into the specs of that device and see what it has under the hood. Thanks for letting me know about it!
AlkaliV2 said:
I had no idea that even existed. I'm going to look into the specs of that device and see what it has under the hood. Thanks for letting me know about it!
Click to expand...
Click to collapse
Here,
the information page from the maker itself :
http://www.oppo.com/en/accessory-vooc-power-bank
and where to get it :
https://www.amazon.co.uk/OPPO-VOOC-Flash-Charge-Power-White/dp/B00SINEEXA
I'm going to build power bank using Dash Charge car charger. The power banks higher voltage (12V if using car charger) means less current for individual cell while charging. I have bought battery holder case 10 x 1,5V for AA batteries. http://r.ebay.com/vpShFJ (I already have plenty of Eneloop AA batteries for other accessories.) Each Eneloop has at least 1,5Ah (1500mAh) capacity while retaining voltage at or over 1,2V. http://lygte-info.dk/review/batteries2012/CommonAAcomparator.php I'm going to attach 12V socket to the battery holder case so I can use my car charger both in car as well while at camping.
Battery bank consisting of 10 x AA Eneloop has a total capacity of: 12V*1,5Ah=18Wh.
Dash chargers input is rated at 12V/2.5A so each individual Eneloop would have about 250mAh discharge rate.
My old Galaxy Note 3 had 3,8V 3200mAh battery and the capasity was ~12,2Wh. I don't know the nominal voltage of OP's battery but I would estimate it's about the same as Samsung's so the capacity should be lower than in Note 3. Maybe around: 3,8V*3000mAh=11,4Wh.
10x Eneloop batteries has a capacity to give energy for charging OP3 from 0% TO 100% at least. (18Wh/11,4Wh = ~1,6)
I think in India it's not available
Sent From My One Plus 3
https://forums.oneplus.net/threads/new-product-survey-dash-charge-power-bank.457920/
Squabl said:
I'm going to build power bank using Dash Charge car charger. The power banks higher voltage (12V if using car charger) means less current for individual cell while charging. I have bought battery holder case 10 x 1,5V for AA batteries. http://r.ebay.com/vpShFJ (I already have plenty of Eneloop AA batteries for other accessories.) Each Eneloop has at least 1,5Ah (1500mAh) capacity while retaining voltage at or over 1,2V. http://lygte-info.dk/review/batteries2012/CommonAAcomparator.php I'm going to attach 12V socket to the battery holder case so I can use my car charger both in car as well while at camping.
Battery bank consisting of 10 x AA Eneloop has a total capacity of: 12V*1,5Ah=18Wh.
Dash chargers input is rated at 12V/2.5A so each individual Eneloop would have about 250mAh discharge rate.
My old Galaxy Note 3 had 3,8V 3200mAh battery and the capasity was ~12,2Wh. I don't know the nominal voltage of OP's battery but I would estimate it's about the same as Samsung's so the capacity should be lower than in Note 3. Maybe around: 3,8V*3000mAh=11,4Wh.
10x Eneloop batteries has a capacity to give energy for charging OP3 from 0% TO 100% at least. (18Wh/11,4Wh = ~1,6)
Click to expand...
Click to collapse
We're going to need a hardware XDA for people like you. I never would have thought to string together Eneloops to make an external charger since most of your power banks contain 18650 with overcharge protection and stuff built in. The wall dash charger is spec'ed to run 5V at 4A and the car charger loses half an amp to land in at 3.5A max. Car charger voltage varies between 3.4~5V from what I can tell probably based on the car's cigarette lighter specs.
What kind of case are you using with the eneloops and what are you using for overcurrent/voltage protection?
otonieru said:
It's actually already there in the market,
named "OPPO VOOC Powerbank"
attached is mine, working fine with OP3 Dash,
Price is around $45-50 - 6000mAH
Charging rate is 3,5A
and it DOES charge my device up to 60-70% in 30 Minutes
it heat up though, especially near the plug (USB C end)
this is why i use the metal based USB C adapter, so it release the heat faster
Click to expand...
Click to collapse
So... can you tell me if a normal VOOC charger block charge the OP3 as fast as the original dash charger in package?
I saw it is the same current rate, but the technology, is it interchangeable?
Just wait oneplus is planning to release a dash charge powerbank with 10000mAh so stay connected no need to buy oppo 6kmAh one
AlkaliV2 said:
The wall dash charger is spec'ed to run 5V at 4A and the car charger loses half an amp to land in at 3.5A max. Car charger voltage varies between 3.4~5V from what I can tell probably based on the car's cigarette lighter specs.
Click to expand...
Click to collapse
You are right, the car charger uses lower current and is probably a bit slower. When I receive my car charger I will do some testing and will report back.
The voltage variation is needed on all chargers. When the battery is almost full the charging voltage drops.
AlkaliV2 said:
What kind of case are you using with the eneloops and what are you using for overcurrent/voltage protection?
Click to expand...
Click to collapse
I have ordered a case like this: http://r.ebay.com/vpShFJ
The car charger has been designed to be used as it is. The charger itself does not require additional overcurrent protection but in case of a short circuit a 5A fuse is needed to protect the wiring and Eneloops. Overvoltage is not a problem as the maximum voltage with Eneloops is going to be under 15V.
DouglasDuZZ said:
So... can you tell me if a normal VOOC charger block charge the OP3 as fast as the original dash charger in package?
I saw it is the same current rate, but the technology, is it interchangeable?
Click to expand...
Click to collapse
Yes it is. I've posted it in another thread as eell. Just check through my post history.
This is pure logical, since Oneplus is just a subsidiary company of OPPO, so they surely can share few technologies between each other, and VOOC/DASH is one of it,
Just make sure your usb c adapter quality is good when you decide to use it with VOOC charger.
For review today, I have an Aukey PB-Y14 Powerbank rated at 20000 mAh. Overall I really like this Powerbank. It is very versatile in so much that it can be charged with a lightning plug, USB-C, or Micro-USB. For outputs it has 3 USB-B plugs and the lone USB-C is also an output. Charging speeds are slow being that this powerbank doesn’t support Quallcom’s QuickCharge in any way. Having said that it still does a great job. I already owned another Aukey powerbank (Model PB-T10) which does support QuickCharge 3.0 and it is very fast. Once depleted, the PB-Y14 takes quite a while to charge, but to be fair it is a pretty large battery. It has only needed to be charged once since I’ve received it, and so far it has charged my Note 9 twice and my Chromebook once, battery life as indicated by the row of LED’s on the side shows 50%, so it seems to be holding its own quite well and I like the battery display on this unit much better than that of the PB-T10 which shows you a colored led and you must remember which color coincides with what power range. In summary the PB-Y14 is a very good power bank but would not be my only choice. I like it quite a lot, but I also like my PB-T10 an equal amount. I will continue to keep the PB-T10 in my daily carry bag and perhaps keep the PB-Y14 around home for emergency power in case of outage or possibly to be a mobile power supply for a small computer such as a raspberry pi. My recommendation would be to weigh out your needs as these are both high quality and very affordable. If you must have fast charging, go for a different model such as Aukey’s PB-T10. If you have a need to charge more than 2 devices (the PB-T10 only has 2 outputs) or greater versatility for charging your powerbank (the PB-T10 only has lightning and micro-usb inputs) go for a PB-Y14.
Thank you for posting