The stylish leather-like body finish adds to the great specs of this power bank, making it also a stylish accessory you'd love carrying around.
The supply kit doesn't include a charging cable.
The Samsung EB-PN915BLEGWW is a practical and beautifully designed model of power banks that will not ever let you down when you need to have your smartphone or other gadgets charged.
11300 mAh
Output ports:
1x USB DC 2A,
1x Micro USB 2A (embedded cable);
Input ports:
1x Micro USB
4 LED indicators show power status
Soft-touch leather-like finish
74.5 (W) x 116.9 (H) x 22.9 (D) mm
265 g
Power bank
Two iOS/Android devices
1 year
The portable charger can recharge more electronic gears at a time than other similar products.
The model has a larger size than most of its analogs.
The Intex IT-PB11K Power Bank is an optimal solution to recharge up to three gadgets simultaneously. A perfect blend of ultimate performance and external aesthetics!
11000 mAh
Output ports:
1x USB DC 1А,
2x USB DC 2.1A;
Input ports:
1x Micro USB
4 LED indicators show power status
Plastic
142 (W) x 63 (H) x 26 (D) mm
280 g
Power bank,
USB cable
Three iOS/Android devices
1 year
The power bank features a flashlight which can be used to illuminate your way at night.
The included charging cable is of poor quality.
This portable charger is a versatile solution capable of recharging your smartphone battery as well as lighting your path at night or in low-visibility conditions. A great option to go with!
13000 mAh
Output ports:
1x USB DC 2.1A,
1x USB DC 1A;
Input ports:
1x Micro USB
4 LED indicators show power status
Plastic
62.1 (W) x 138.1 (H) x 22.2 (D) mm
250 g
Power bank,
USB cable
Two iOS/Android devices
1 year
The low weight combined with the small size make this model of power banks extremely portable and easy to take on every adventure.
Recharging of the power bank itself will take quite some time.
A perfect combination of portability, elegant appearance, and technical characteristics sets this device apart from many other similar products available on the market.
10000 mAh
Output ports:
1x USB DC 1.5А;
Input ports:
1x Micro USB
4 LED indicators show power status,
1 power on/off LED indicator
Glossy plastic finish
72 (W) x 127(H) x 17.5(D) mm
242 g
Power bank,
USB cable
One iOS/Android device
1 year
The gadget has multiple capabilities of short circuit protection, including input/output overvoltage, overcharge, over discharge, and more.
The supplied charging cable is relatively short.
The ultra-high battery capacity of the external power charger makes it an ideal choice for people who spend a lot of their time on the road. Charge your gadgets on the go and stay in touch with the outer world.
20000 mAh
Output ports:
2x USB DC 3.6A;
Input ports:
1x Micro USB
4 LED indicators show power status
Plastic
73 (W) x 141.9 (H) x 21.8 (D) mm
338 g
Power bank,
USB cable
Two iOS/Android devices
6 months
Samsung EB-PN915BLEGWW
Bright and Innovative Design
You'll know this power bank is special at a glance; this is how great the Samsung EB-PN915BLEGWW looks. Elegant design, combined with superb technical characteristics, add appeal to this model. It is designed as a small device that you'd want to take you with you on trips. It will fit easily in your pocket partially due to its slim design, partially due to its low weight of 265 g. The model is currently available in three colors, warm blue, gray, and white, so you can choose the best suitable color. We'd also like to say a few words about the coating. A soft yet durable leatherette coating Samsung manufacturer has used for the EB-PN915BLEGWW not only looks fantastic but it also provides a much more pleasant experience when you use this power bank.

Great Performance Specs
As you know, the appearance isn't a determining factor in choosing an electronic gadget, so, let's go deeper. Although the Samsung EB-PN915BLEGWW isn't an ultra-high-capacity power bank (its capacity is 11300 mAh), it is yet enough for recharging several of your gadgets up to five times. Furthermore, with the two built-in USB ports, you'll be able to charge two devices like a cell phone and a tablet simultaneously. Not bad! It's worthwhile noting that this portable charger comes with the Samsung SDI batteries which pass rigorous testing and quality control. The company covers its power bank with a 1-year warranty, so, you can be sure that you get a high-quality product.

Ports and Indicators
The 4 LEDs located on the front of the EB-PN915BLEGWW will tell you of the battery life so that you could either keep using it or leave it on charge. The charging of the power bank itself is a simple process. The built-in micro USB cable allows you to charge it from literally any digital gadget. For users of Apple gadgets, the manufacturer has fitted the EB-PN915BLEGWW with a port compatible with the cables used for iOS devices. The output current of 2 amps enables you to charge any of your gadgets really fast.

An Important Tip
To ensure the best performance of your power bank, it's necessary to fully charge it before the first use. Even when the LEDs show the charge is been completed, don't be in a rush to pick it. It's recommended to charge a power bank for a bit longer than you'd normally do when charging it for the first time.

Additional Info

Intex IT-PB11K
Ergonomics and Elegance
The Intex IT-PB11K with a matte body finish and rounded smooth edges is a real eye-catcher. However, it is not only its beautiful design that sets this model apart from other chargers. The huge advantage of the IT-PB11K is that it's equipped with three USB ports — this feature favorably distinguishes the Intex IT-PB11K from other power banks on the market. Designed for people who lead an active way of life, the gadget is scratch-resistant, so, there is no need to worry about its appearance. It's necessary to add that the IT-PB11K is available in two colors — a black housing with a gray bezel and a white housing with a gray bezel.

Main Technical Specifications
It's worth mentioning that the Intex IT-PB11K is an advanced solution which can satisfy the needs of the most sophisticated users. It seems that Indian developers took into account all claims and preferences of users to produce a really exquisite product. Besides elegant design, the specs of the charger are also great. See for yourself. The model features two USB ports, one of which has 2.1A of the output current and is used when the user needs to charge one of his/her gadgets really fast, while the other one with 1A of the output current is used for regular charging. Each port has a clear marking of the rated current so you'll quickly figure out what's what.

Additional Features
Of course, a modern person is very unlikely to be surprised with the availability of LED battery status indicators, however, this is not the only feature of this power bank with respect to its practicality features. The Intex IT-PB11K contains a built-in high-power LED, so, you can also use it as a handheld flashlight to light your way even in complete darkness. With the small size and such advantageous features, this battery recharger will be your best travel companion!

A Useful Tip
Don't discharge the power bank completely. Now, the majority of portable chargers come fitted with Li-Ion batteries that unlike the previous models don't require to be fully discharged. Therefore, it is better to avoid situations when the power bank's battery level drops to 20% and start charging it a bit earlier than that.

Additional Info

Ambrane P-1310
Minimalist Design and Maximum Practicality
The Ambrane P-1310 Power Bank has a classic minimalist design without any bells and whistles. However, that's what actually favorably distinguishes it from many other models of power banks. The strong side of the P-1310 is its practical features. One of them is the protection against fingerprints and scratches— you will be able to use the device without worrying about its external appearance! Another distinctive feature is its ergonomics; all parts and ports seem to be placed maximally convenient for use. Great!

Power for the Whole Day
Smartphone owners who intensively use their gadgets for games, Internet surfing, making video calls through Skype often lack the capacity of their device batteries. In some cases, the battery can be discharged very quickly. The Ambrane P-1310 will definitely come in handy in such situations! With the battery capacity of 13000 mAh, you will be able to replenish the charge of your smartphone battery several times, while the two USB type A ports will enable you to charge two gadgets simultaneously. One of the ports provides an output current of 2.1A and another one - 1A. To charge your electronic gadget faster, take advantage of the USB port with an output current of 2.1A.

A Formula for Success
Inside the Ambrane P-1310, you'll find only exceptionally quality electronic components. In order to provide the user with the best experience, the company fitted this power bank with the Samsung Cell Li-Ion Batteries, the type of batteries that's been tested and refined for many years. These batteries stand out for their long lifespan and overall performance.

100% Charged
As you might know, Li-Ion batteries always need to be 100% charged. Try not to interrupt the recharging process until the battery shows it's been fully charged. Although some argue that modern lithium-ion batteries don't have a "memory effect", practice shows that this issue still exists even in cases of the most up-to-date components, albeit to a lesser extent.


Sony CP-V10A
"It's a Sony"
This is how the former Sony's slogan sounded, conveying the concept of quality products. The Sony CP-V10A Power Bank hasn't become an exception. A minimalist design only contributes to the portable dimensions of this charger. At the size of 72 x 127 x 17.5 mm and the weight of 242 g, this power bank can become an excellent solution for all users leading an active lifestyle. The Sony CP-V10A is produced from scratch-resistant material and is available in several colors, so you will surely find the right model for yourself. In addition, the charger boasts multiple capabilities of protection including time and temperature monitoring; whenever the voltage drops or raises, or the power bank is being on a charge for too long, the device automatically switches to a safety mode.

Up to 4 Charge Cycles During a Day
The average battery capacity of modern smartphones is between 2000 to 3000 mAh. However, the operating time of the phone may be drastically reduced if you use it intensively throughout a day. With the Sony CP-V10A, you'll not ever find yourself in a situation when the phone is dead when you need it most. The 1000 mAh capacity will let you use it for charging your gadgets up to 4 times during a day, while the 1.5-A output current will let you do it considerably faster than if you used a standard USB port.

All is Very Simple
Sony has done its best to allow for all capabilities that could make its CP-V10A power bank a maximally practical solution. 4 LED indicators placed at the front of the gadget make it easier for the user to operate the charger in dim conditions as well as keep track of its actual battery status.

The Intended Use of the Ports
The Sony CP-V10A has only two ports: USB 2.0 type A and micro USB 2.0. The first one is used for connecting and recharging mobile devices, while the second one is intended for charging the power bank itself. The package alongside the power bank includes a charging cable which can be used as a USB cable for other devices.

Additional Info

Xiaomi Mi
Compact size, Incredible Capacity
Xiaomi Inc. is renowned not only for its stylishly designed and powerful smartphones but also for its longing to produce only high-quality products and accessories that would meet the needs of a wide audience. Without a doubt, the Xiaomi Mi power bank is one of these devices. Of course, if compared to similar power banks this portable charge might seem a bit bulkier, however, it shouldn't really cause any inconvenience, given its impressive battery capacity that makes 20000 mAh. Actually, it's two times more than most other portable battery rechargers have. Huge potential!

A Source of Power for All Your Gadgets
No matter how many devices there are in your arsenal, the Xiaomi Mi power bank has ample capacity to keep them all charged. According to the manufacturer, the device can charge Xiaomi Mi4 with a battery of 3080 mAh — 4.5 times, iPhone 6 — sevenfold, iPad mini — threefold, and the latest Apple MacBook version — 1.2 times. This is impressive!
Additionally, one of the main advantages of the model is Quick Charge 2.0, the technology ensuring the fastest charging speed. It's worthwhile adding that the battery is compatible with different input voltages: 5V/2A, 9V/2A, 12V/1.5A, so, be sure that all your electronic gadgets will be at full charge!

Charge Two Gadgets at a Time
The Xiaomi Mi 20000mAh Power Bank doesn't include special adapters or other superfluous connectivity features — it's equipped only with two USB type A ports. To juice up batteries of your gadgets, you will only need to take advantage of the micro USB charging cable supplied with the portable charger or your mobile electronic devices.

Safety Features
High-quality Texas Instruments electronic components inside the power bank provide an improved charging conversion rate as well as stabilized charging and discharging voltage levels. Besides, the portable charger can boast multiple capabilities of protection against power surges, short circuit, input and output overvoltage, overcharge, overdischarge, etc.

Additional Info

Infographics

What is a Power Bank
People use more and more gadgets such as smartphones, tablets, mp3 players, smartwatches and many more on a daily basis. In order to make these gadgets compact and portable, manufacturers typically fit them with smaller and lighter batteries. The downside though is that the reduction in size has also resulted in a shorter battery life. This is where a power bank comes in handy. This small electronic device has been designed for charging your gadgets on the go no matter where you are. With a power bank, you are not bound to the sockets and can quickly bring back to life the dead battery of your phone or tablet. A power bank comprises a few batteries concealed inside the enclosure and features several USB-enabled built-in ports. In this review, you'll find some useful tips and guides on how to choose the right power bank that will match your needs and applications.
We would also like you to read our review on the best iPhones, famous Apple smartphones designed in keeping with the newest technologies.
What Features to Compare
The first thing you need to consider when selecting a power bank is its capacity. Measured in mAh, this spec shows the number of times your mobile device can be charged. What you should know, though, is that the bigger the power bank capacity is, the heavier the device will be. The current, measured in A (ampere), typically determines the charging speed. Usually, you will need 1A of output current to charge a smartphone and 2A to charge a tablet. As for the capacity, opt for 3000 mAh capacity power bank to be able to charge a smartphone and for 6000 mAh or higher to charge a tablet. If you use a lot of gadgets every day and you want to charge them with a single power bank, it's better to choose the model with greater capacity and several USB-enabled ports.
Compatibility and Functionality
Next, you want to pay attention to compatibility and functionality of the device. In case you need to charge more than one mobile device, you should consider models with several USB ports. Some extra bells and whistles like a flashlight and LED indicators will add to the versatility of use of the device. Also, some power banks may have additional adapters with the help of which it will be possible to charge even a laptop. All these extras may come very helpful when on a trip, for example.
Design
The design of the power bank should not be overlooked. You will use it a lot, so, it should be well designed and produced from high-quality materials. Power banks enclosed in aluminum casings look great and are very pleasant to touch. Needless to say, they are also very durable. Even if you accidentally drop one, it won't break. Plastic models are more lightweight and usually come at a cheaper price. As we've mentioned above, high-capacity power banks are typically very bulky and therefore, may not suit your everyday needs. So, if you plan to carry one with you, the capacity of 15000 mAh will be the biggest one you'd want to have.
FAQ:
Q: How long do I need to charge a power bank?
A: It generally depends on the actual capacity of a power bank and its remaining power. The larger the actual capacity is, the longer charging time a power bank will require. Meanwhile, using different chargers may result in different charging time. Charging the device with an original charger is usually faster than charging it via a USB port on PC.
Q: What is mAh?
A: A milliampere hour (mAh) is 1000th of an ampere hour (Ah). This measure is usually used to describe the energy charge that a battery has, and how long a device can work before discharging. A capacity is commonly measured in mAh to inform you about how much power a power bank holds and how many times it can charge your device.
Q: How do I know the current level of the charger?
A: Most of the models come equipped with a LED indicator that visually informs you of the battery life status.
Q: How long does it usually take to charge a phone or tablet?
A: This time depends on several factors, among which the output of a portable charge comes as the foremost one. The typical output amperage for power banks makes 1 or 2.1 Amps, with the latter being much more efficient (and quicker) for charging tablets and smartphones. The second factor is the cable resistance. Note that some of the cables have only a 1A capacity capability.
Q: How many times can I charge with a portable charger?
Sources:
1. PowerBanks "How it Works", Instructables.
2. Savio D'Souza Buyers' Guide: Power Bank for Your Smartphone, The Times of India. December 27, 2014.
3. Seven Things You Should Know Before Buying A Power Bank, Nairaland Forum. May 23, 2015.
4. How to Choose the Best Portable Charger, Tripcase. April 2, 2016.
5. Power Bank Buying Guide, eBay. August 15, 2013.
6. Nandini Sharma How To Choose The Right Power Bank For Your Smartphone, Lifehacker. May 14, 2014.
7. Ng Chong Seng 5 Tips When Buying a Portable Battery Pack for Your Mobile Device, Singapore Hardware Zone. February 13, 2014.
8. How to Choose a Suitable Power Bank for Your Mobile Phone, SlideShare. November 26, 2014.
9. Jamie Lendino 11 Tips to Boost Your Android Phone's Battery Life, PCMag. May 1, 2014.