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12000mah portable power bank charger

About Product
Features:
- High capacity 12000mAh.
- Built-in original imported 18650 li-ion battery cell .
- Intelligent MCU controller
- 2.1A max output current,just 1-2h to full charge iphone4/4s
,can recharge mobile phone for serval times
- Higher efficiency of power conversion, reach over 85%.
- Includes conversion tips for most mobile phones and all digital devices charged via USB port.
- With a power button & LED indicator, press power button twice to turn on then press twice again to turn off.
- High capacity, rechargeable, practical and long cycle life.
- Over-heat, over-current, over-charge, short-circuit and over-discharge protection.
- Safe and reliable, perfect for using on travelling, camping, hiking and other outdoor activities, also ideal for extended calling, gaming and listening to music, easy carrying.
Specifications:
1. Capacity: 12000mAh, built-in original lipo cell
2. Input : DC5V1A
3. Output C5V1A and 2.1A
4.charging time:3hours
5.discharging time:1.5-2hours
6. Lifespan: 500 cycles
7. Dimensions: 100 x 70x 22mm
8.weight:220grams
9.color can be optional
Package Included:
1 x 12000mAh mobile power charger.
1x charging leads
5x Connectors(for iphone 4s, Samsung, LG, Nokia DC2.0, mini usb, micro usb, Sony PSP)
1*ac adapter
Accessories images
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About Warranty
1.you can return the products within three days after you find there will be quality problem since you recive the cargos
2.You can exchange the products for new within 3 months if there will be quality problem which caused
by the products themselves
3.The products can be fixed for free within one year since you recive them .
About Shipping
http://image.dhgate.com/albu_341165825_00/1.0x0.jpg
Shipping Company
Time
Tracking Website
UPS
3business days
www.ups.com
DHL
3-4business days
www.dhl.com
Fedex
4-5business days
www.fedex.com
EMS
5-10business days
www.speedpost.com
Remark:The real handing date is accoring to the country or the area you are in.
The date is just for your reference.
About Payment
http://image.dhgate.com/albu_341166608_00/1.0x0.jpg
product shows
http://image.dhgate.com/albu_342897209_00/1.0x0.jpg
http://image.dhgate.com/albu_342897334_00/1.0x0.jpg
Shenzhen victpower technology co.,ltd
Telephone:86-0755-89635916
Mobile Phone:8613723773629
Fax:86-0755-89635636
Email:[email protected]
Address:1-2F., Building C, No.28, Xinmuxinyuan Industrial Park,Pinghu Town,Longgang district
Site:www.victpower.cn

Made in China
Brother I got a similar equipment and is not as great as you pretend to be.
Sure the price is cool, you find it with 5 dollars on wholsales but I bet it doesn't have 12 Ah, if it has 10 Ah is good!
Second: the lights are not indicating the right amount of energy recharged.
I discharged completely, and started to charge with an 700mAh charger and the blue lights went on in a 2-3 hours interval and this is not possible.
Also is not possible as you say to recharge 12 Ah battery with 1Ah recommended, in just 3 hours as you mention.
This device needs like 10-12 hours with 1000mAh to make it full, and as I said the light indicators are not precise.
When I first got it, It had some power in it for test I supose, but it was showing all 4 leds lighten up. I powered my 33% Samsung Tab 2 7inch and started to charge till it reached 77% and then died!
I put it to recharge! In few complete cycles the life time will improve, but I don't think is able to recharge a 4Ah tablet 2 times! If is getting one time is perfect! Not with the tablet open, at least!
Another thing people should know is they should use their original cables, the connectors don't fit on my tab, and on an old Sony Ericsson phone. Both of them are the wrong size!
The design is nice, the price is good, but I don't think is a good battery pack!
Another thing people should know about it, is not multitasking. If you plug in a Phone and a Tablet in the same time, is dying fast, so.. you must choose!
I recommend this product for his low price! Is not so big either, but the cables and adaptors are junk.
Good luck guys!

Usually these batteries are of poor quality

controguerra said:
Usually these batteries are of poor quality
Click to expand...
Click to collapse
i agree, i don't trust products made in China

Everything's from China
bruno.stargate said:
i agree, i don't trust products made in China
Click to expand...
Click to collapse
But everything's made in China?! (j/k, I know what you mean.) Most of the stuff sold on the ecommerce b2c sites are of the Shanzhai variety).
But isn't that always the case, you get what you pay for.
When I bought my Note 8, they offered me a deal to buy the Samsung 9000mAh power bank for about 600HKD, which is about 85USD. Expensive yes when compared to the typical cheap China stuff, but then again, I don't relish the thought of battery acid exploding on my leg. Though some might. I guess.

Ads?Spam?

RAVPower® Xtreme 23000mAh 3-Port Portable External Battery Charger with Multi-Voltage

GET IT HERE​
Beast!!! :good::good: I could just say that and it would be enough. But I will tell more. For the price it is at right now, you simply cannot beat it. Nothing is close to this. Trust me I know. I have a ton of chargers. I outfitted my family and have plenty for me. But there is no doubt this is numero Uno for me right now! Most of my products are from RAVPower, the reason being is they have GREAT customer service and they ship very, very quick. I have had one charger go bad, and they immediately replaced it. Anyways let me tell you about this bad boy.
It can charge multiple devices, Smartphone’s, laptops, tablets, all Apple products and much more. You can charge three devices at the same time, yes I tried it. It didn't let me down. My laptop and 2 Smartphone’s. It charged them all very rapid and still had 30% power when I finished! Just as an illustration I charged my Smartphone alone the first time and it took 55 minutes and only took 13% of the charge. I also charged my laptop alone, it was at 50% and it took it appx. 50 minutes and it was charged fully and barely put a dent in the remaining charge. The battery's size comes in at 4.88" by 7.28", and its 0.75" thick. It comes with an AC adapter for the wall.
The design is sleek. It has a black chromium style look. The coolest new feature on a RAVPower product that I have seen is the LCD screen that shows the remaining charge and when connected. It also allows you to change the voltages. I hope they continue this with future devices.
It contains high quality reliable lithium-ion polymer battery cells. 2 USB Smart Ports to charge ALL devices at their max speed. It has a huge range of output voltage: 5V, 9V, 12V, 16V, 19V, 20V. It also contains the built in safety features that come with all RAVPower products. Protection for over charge, over voltage, over current, over temperature and short circuit.
Package includes: RAVPower Xtreme 23000mAh External Battery, 110 - 240V AC charger, an assortment of charging tips, a nice box case and a pouch to utilize for on the go. And ff course, the instruction manual.
I highly recommend this product. If you need lots of power, then this is a must have. Especially at that price it is now. My officially approved stamp of a great product!
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RAVPower® Xtreme 23000mAh 3-Port Portable External Battery Charger with Multi-Voltage (9V/12V/16V/19V/20V - LCD Display) for Digital Cameras, Camcorder,Surface Tablets,Asus Tablets,Acer Tablets,HP, Dell, Acer, Asus, Toshiba Netbooks Laptops,iPhone 5S, 5C, 5, 4S, iPad Air, 5, 4, 3, 2, Retina iPad Mini 2, Samsung Galaxy S5, S4, S3, Note 2, Note 3, Galaxy Tab and any other devices (Apple adapters - 30 pin and lightning, not included)

Review: Intocircuit 15000mAh powerbank w/ pictures

This is a review of a power bank from Intocircuit - http://www.amazon.com/gp/product/B00OSYLXKU
As phones have been getting more and more powerful over the years, portable battery packs for smartphones and tablets have been gaining popularity. There’s many different brands and variants available, and today we’re going to be having a look at a 15000mAh power bank from the company Intocircuit.
The power bank itself comes in a small box with some product information on it regarding the amperage and capacity, and inside there’s also a USB-cable and a small pouch to put the power bank in. The accessories are of decent quality and definitely are nice additions to the power bank.
So when it comes to the actual power bank, it’s made out of a combination of plastic and brushed aluminum – it really looks nice and a bit different compared to other brands. The power bank has 2 full-size USB ports that are rated at 2.4A, a MicroUSB-port that can be used to charge the power bank, along with an LED and a small LCD display that show the amount of battery that’s left.
When it comes to the actual capacity I must say that it’s pretty much spot-on, as I’ve managed to charge my Yoga 2 tablet (capacity: 9400mAh) and my Z3 Compact (capacity: 2500mAh) using it, before the battery of the power bank was fully drained. The recorded output current while hooked up to my Yoga 2 was stable at around 2A, and with a quality USB-cable reaching 2.4A should be certainly possible.
The main negative thing that I’ve to say about this power bank is the fact that it takes a long time to charge it up once drained, but that’s due to the higher capacity and other power banks such as the Xiaomi 16000mAh suffer from this as well. Charging the power bank 0-100% takes nearly a day, and therefore it’s a good idea not to let it drain completely before charging it.
So conclusion time – this is a pretty decent power bank for the price and it looks and performs great, and is comparable to other brands that I’ve tried in the past. The capacity is correct and the charging speed is decent, although charging the power bank itself takes some time. This is certainly a product that I do recommend if you’re shopping for a good power bank!
Pros:
- Good battery capacity and power output
- The included accessories (pouch, micro-USB cable)
- Decent build quality, and the power bank looks and feel great.
Cons:
- Takes a long time to charge up
Note that I was provided with a review unit of the above mentioned product, but that does not affect my review as it is solely based on my own opinion and experience.
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nice review, my current powerbank is too crap so I'll look into this one. any idea how long it can run a Pi?

kamilrakowski said:
nice review, my current powerbank is too crap so I'll look into this one. any idea how long it can run a Pi?
Click to expand...
Click to collapse
Depending on how much your Raspberry Pi draws, let's say 1A, I would say about 11-13 hours at most.

Nice review. It's always good to have a back up power bank with you especially during a trip.

Can you charge the battery pack at the same time as it is charging other devices?

dsteinmetz2101 said:
Can you charge the battery pack at the same time as it is charging other devices?
Click to expand...
Click to collapse
I'm not entirely sure about that as I've not tried it, but I think it may be supported.

AUKEY 20000mAh Power Bank with Lightning Input - Review & Unboxing

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.

[review] RavPower ultra-compact 45W PD GaN charger

RavPower reached out to me to see if I'd be interested in reviewing their new 45W gallium nitride (GaN) charger. If you haven't heard of GaN yet you'll likely be seeing it more and more as it's a newer tech that allows chargers to be smaller and more powerful. The only other on on the market right now is from Aukey, which is about the size of the OEM iPhone brick but can deliver 29W via PD. RavPower's offering is a bit larger and takes a different design approach, but ups the power to 45W making it suitable for charging devices like laptops as well as our phones. I'd read about it and seen pictures, but I didn't appreciate just how small it is until I actually got the unit.
Instead of a square brick RavPower's charger is more of a card design, with a folding plug that makes it very pocketable. At about 15mm thin the charger is insanely slim, and since the Type C Port sits at the bottom of the charger when plugged in this thing can fit behind some ridiculously tight spaces. This orientation may not always be ideal as it takes up a larger footprint along the wall, but in general I prefer it to a brick that sticks out far from the wall. The overall footprint is slightly smaller than a standard credit card. Like I said, I'd seen pictures of this before but was still blown away at just how small this charger was.
The charger uses power delivery to deliver up to 45W, and can output at 5V/3A, 9V/3A, 12V/3A, 15V/3A, and 20V/2.25A. Obviously the Pixels can only handle up to 18W but I also have a first gen Samsung Chromebook Plus and a Switch that can utilize the higher charging speeds. Using my USB C voltage tester I was able to confirm that the RavPower charged the Pixel 3 just as fast as the OEM Google brick (about 9V/1A) and it charged my Chromebook at 15V/2.25A.
This will be my new travel charger. It is so slim that it fits into any bag just fine and delivers enough power to charge both my laptop and phone at full speed. In fact, I just returned from vacation where it acted as my primary charger for two Chromebooks, two Pixels and a Switch. I'd love to see a dual port option so I could charge a few devices at once since this has enough power to charge two phones at full speed simultaneously. Still, as a first gen product this is quite impressive. I've used several RavPower chargers and battery banks throughout the years and never been disappointed; they have all been well designed and performed as expected. Even with high expectations, this charger has wowed me.
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I hope this technology comes to battery packs soon. Those are getting way too big!