Best powerbank for smartphone (2016)

The power banks are made up of a battery reserve in a special case, with a special circuit to control the power flow. They allow you to store electrical energy and then use it to charge a mobile device. The power of power banks has made them increasingly popular for the battery life of our phones, tablets, and portable media players. By keeping a battery backup close by, you can recharge your device while you're away from a wall outlet. For this reason we have made this great guide in search of the best smartphone powerbank.

Index of contents

Best powerbank for smartphone

Power banks are good for almost all USB charging devices. Cameras, sports cameras, portable speakers, GPS systems, MP3 players, smartphones and other devices with a USB connection that can be charged from a powerbank.

• Universal Powerbank - They come in many sizes and configurations that can be tailored to your device requirements and budget. Solar Powerbank: They have photo-voltaic panels that can leak internal battery charge when placed in sunlight. This solar charge is not fast and its purchase is not very common. Classic Powerbank: While it can be very practical, this type of powerbank has very close device compatibility.

Power banks have a dedicated input to receive power. This power can come from a USB port on your computer, but it can charge faster when using a wall socket adapter. What is most often seen is a Mini or Micro-USB connector for charging, and a full-size USB for downloading.

In very rare cases the powerbank can use the same input and output socket, and it can also damage the battery. Always refer to the manual for specific instructions.

Depending on the powerbank's capacity and your current charge level, it may take a long time to fill up the battery. For example, a 1500 mAh powerbank should take the same time as a smartphone. For larger powerbanks, this time can be doubled, tripled, or quadrupled. Most powerbanks have an LED indicator to show when they are reaching full capacity to avoid overcharging and overheating. Whenever possible, remove the powerbank from the charge when it is full, or at least avoid leaving it connected too long after full charge. Ambient temperature and power flow will also affect charging times.

How long does a powerbank last?

There are two important life expectations to take into account when choosing between the best smartphone power banks:

• The number of charge / discharge cycles that a powerbank can reliably perform in its lifetime. How long can a powerbank hold its charge when not in use.

The answer to point 1 may differ between the powerbank models, their internal components and the quality of their manufacturing. Most powerbanks will allow you to charge a device every day for a year and a half before it begins to lose its ability to hold the charge long-term. The more expensive the powerbank, it may last longer as well. While cheaper, it can last much less. Powerbanks are generally not used on a daily basis, so they often last more than 18 months.

Point 2, depends on the quality of the controller and the battery cell circuits. A good powerbank can hold a charge for 3-6 months with minimal loss. The poor quality of the powerbanks can make it difficult to retain a payload of more than 4 to 6 weeks. In this sense, you get what you pay for, and if you need long-term emergency power supply, consider increasing your budget.

Most powerbanks gradually lose their charge over time, to a degree influenced by the environment and its treatment. For example, leaving a powerbank in the car, where the temperature can fluctuate widely over time, can shorten its life.

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Below we make our small ranking of the best smartphone powerbank that you can buy today. We will update every time an interesting model comes out:

Aukey | 20, 000 mAh | 24 euros

Aukey | 5, 000 mAh | 13 euros

Xiaomi Powerbank | 10, 000 mAh | 17 euros

Poweradd Slim 2 | 5000 mAh | 10 euros

Aukey Qualcomm Certified | 16000 mAh | 30 euros

Poweradd pilot X7 | 20000 mAh | 23 euros

VicTsing 8000 mAh | Solar Charger | 20 euros

With this we end our guide to the best smartphone powerbank. What is your favorite? Do you recommend us to include some in the list? We are waiting your comments.