Last updated: September 26, 2020

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Technology always seems to be advancing in huge steps, especially when it comes to cell phones. Our phones now work as personal computers. We can check our emails or the latest news with them. We can listen to music, make calls, and share our photos and videos on social media with just the click of a button.

The main problem with cell phones is battery life. We almost always have to charge our phones at least once a day to get through the day, sometimes even more. Thanks to power banks, portable batteries, now we can recharge our phones anywhere. We have made a list of the 5 best power banks of 2019 to help you choose which one to buy.

Key Facts

  • Before deciding which power bank to buy, it is very important to know what you are going to use it for. Some smaller models will fit in your pocket. This type of power bank is great to charge your phone one or two times. If you need to charge your phone more than that, or you are thinking of taking your phone with you on a hike, you will need a larger model.
  • It is also very important to know what devices you are thinking of charging with your power bank. First of all, any type of device with a USB cable should be compatible with a portable battery. We are talking about cell phones, of course, but also tablets, sports cameras, or even Bluetooth speakers.
  • Knowing how many devices you want to connect to your power bank is also very important to make the correct purchase. If you only need to connect one device at a time, it is okay to have a power bank with only one USB port. If you want to connect several devices at the same time, you will need a port for each one. Make sure you purchase a power bank with the right number of ports.

Our Selection: The Best Power Banks on the U.S. Market

Running out of battery when you need to use your phone can be extremely inconvenient. No matter if you are in the middle of nature on a hike or on a work trip, power banks are an excellent option. You will never miss an important call again. The following is a list of the best power banks of this year on the market to help you choose which one to purchase.

The Best Power Bank for Simultaneous Charging

This power bank is an Amazon’s choice, so you are sure to be satisfied. This model has a 10,000 mAH capacity. It can charge an iPhone 8 up to 3 times on one charge.

This power bank also has two USB ports, so you can connect and charge up to two devices at a time. This model has a built-in LED flashlight, which is a very convenient feature. This battery will safely charge your phone.

The Best High-Speed Power Bank

Like the previous model, this power bank is an Amazon’s choice and has 10,000 mAH capacity. It is one of the smallest and lightest portable chargers of this capacity on the U.S. market.

This portable battery will quickly charge your cellphone, as it is made for high-speed charging. It will safely charge your mobile devices, the company assures.

The Best High-Capacity Power Bank

The third item on our list is also an Amazon’s choice. The difference is that this portable charger has 20,100 mAH. This is a higher capacity than the first two on our list.

It is also very compact and weighs as little as a can of soup. You will be able to transport this charger with you wherever you go. This battery can be recharged within only 10 hours.

The Best Power Bank for iPhones

This portable charger is built specifically for iPhones. You do not have to buy a charger, as this battery has a built-in iPhone charger. This power bank does not have ports for other devices.

The capacity of this battery is 6,000 mAH, a bit less than the previous products, but perfect for short trips. This charger can charge your iPhone 6 up to 2 times within an hour and a half.

The Best Mini Power Bank

This model has less capacity, around 5,000 mAH but is the smallest model on our list (10 cm tall, 3 cm wide). It can easily fit in your pocket and is very convenient for carrying around in a purse. It will charge your iPhone X one time. This model is also equipped with high-speed charging.

Shopping Guide: Everything You Should Know About Power Banks

Mobile devices, especially phones, have become essential tools in our daily lives. However, their battery life is usually not enough for an entire day. having an excellent power bank could be very useful for many occasions. In this section, we will tell you the most important factors that you should know before buying a power bank.

Power banks are very useful when traveling. (Source: Przemekklos: 44314737/

How does a power bank work?

A power bank is a portable battery for your devices. Its function is simple. First of all, the power bank needs to be charged. This way, the portable battery stored energy to charge other devices.

When your device, for example, your mobile phone is low on battery, it is time to use your power bank! Instead of plugging your device directly into the wall, you use the cable to connect it to the portable battery. Then, the power bank begins to move its energy to the other device and charges it.

What devices can we use a power bank with?

People usually use portable batteries to charge their cellphones. This is because cellphones are now a tool that just about everybody uses in their daily lives. Most people overuse their phones and need to charge them very often. The problem is when there is no plug nearby. Your power bank is the perfect solution in these types of situations.

Even though this is the most common use, it is not the only one. Power banks can also be used with other devices that charge the same way phones do. For example, tablets, Kindles, cameras, or GPS are all devices that can be charged with a power bank. Some models are even able to charge laptops!

Most portable batteries have an intelligent design and can detect the voltage of the connected device to charge it as fast and safe as possible. They also usually include mechanisms to avoid overheating. It is important to look over the instruction to see the compatibility of your devices with the power bank you may purchase.

What does the mAh of a power bank mean?

The abbreviation “mAh” refers to the “ampere-hour” of the power bank. An ampere-hour is an intensity measurement. The milliampere-hour is a thousandth of an ampere-hour. To avoid too much technical information, the mAh of a power bank indicates the amount of energy that it can store. This factor is extremely important.

The higher the amount of energy stored, the more energy it will be able to transfer to the connected devices. This means you can charge your phone more through this gadget without having to recharge the power bank. You need to keep in mind how many devices you are going to connect to the portable battery when choosing which to purchase.

How do I connect devices to my power bank?

the most common way to connect a device to a power bank is using a USB cable. Some models include the cable, and if it does not don’t worry! This cord is very cheap to buy separately and you probably already have one!

You probably already have the cable you need to connect to the power bank. However, you should keep in mind that not all cell phones and tablets have the same connections. You should use the correct cable for your mobile devices. It should be noted that the more USB ports your battery has, the more devices you will be able to charge at the same time.

Many models of power banks are water-resistant.
(Source: Petro Perutskyi: 120312710/

How do I charge a power bank?

Your power bank will only work correctly if you have charged it before use. Remember that power banks work as an external battery, so it needs to be recharged regularly. The more you have charged your power bank, the more it can charge other devices.

Power banks are usually charged through a USB cable. You should connect the cable into the battery’s USB micro port. The other end of the cable needs to be connected to a plug through an adaptor. You can use the same adaptor that you use to charge your cellphone. Each model can be different. In this case, it is important to read the instructions of that specific power bank.

How does a solar power bank work?

The difference between a traditional power bank and a solar power bank is that the latter has a photovoltaic panel, also known as a solar panel. This solar panel turns light into electricity. This way, when you put the power bank in the sun, it will automatically begin to recharge the external battery.

This model is perfect for hiking or camping in nature where there is limited access to plugs. However, it is important to note that this way of charging the power bank takes much more time than plugging it into the wall. On the other hand, most solar power banks can be plugged in as well.

You need to charge your power bank for it to charge other devices. (Source: Aliaksandr Bahdanovich: 111891165/

What are the pros and cons of solar power banks?

As you can see by its name, a solar power bank is an excellent option if you are going to expose it to the sun for a long period, for example, during a long walk or camping. This way, you leave the power bank all day in the sun. In these situations, it is a good idea to take advantage of any plugs you may find to recharge the power bank faster. The following is a table of the pros and cons of solar power banks:

  • You can charge them with sunlight.
    Great for long hikes and camping
  • Usually have the option to charge traditionally through a plug
  • You can use them just like a traditional power bank
  • Some models are water and shock-resistant
  • Take a longer time to charge with sunlight
  • If there is not enough sunlight you will need to plug them in to charge.

Shopping Criteria

There is a big variety of power bank models on the market, so it is normal to feel a little bit lost when buying one. To help you make the best decision, we have prepared the following section. In this section, you will find the factors that you should keep in mind when you are choosing which power bank to purchase.


The size of the power bank that you decide to purchase should be directly related to how you are going to use it. If you are thinking of using it daily, you should consider a lighter model that you will be able to take with you wherever you go. A smaller power bank would be ideal in this situation. However, you cannot charge your device as many times as you can with larger models.

If you are looking for a power bank that can charge your device many times, you will need one with a higher capacity. This usually means that you will have to purchase a larger model of power bank. However, there are portable batteries on the market that fit in your pocket and can charge your device about three times. If you want to charge your devices more than that, you will need a bigger power bank.

A solar power bank allows you to use sunlight to charge your devices.
(Source: Ruslan Sitarchuk: 89318127/


Capacity is usually related to size. Some larger models have a greater capacity than portable models. However, size and capacity are not always directly related. There are smaller power banks with different capacities.

It is very important to pay attention to the manufacturer’s specifications, especially the milliampere-hour (mAh), found in a previous section. The higher the mAh the more you can charge your device with the battery; it will have a larger capacity. It is important to point out that the number of full chargers depends on the device that you will charge.

Number of Ports

The number of ports of the power bank that you choose is vital. We are referring to the number of connections that the power bank has. If your portable battery has more than one port, you will be able to connect more than one device. If you only need to connect one at a time, you can buy a power bank that only has one port.

You will need a power bank with more ports if you want to connect more than one device at the same time. For example, it is very common to charge your tablet and your phone at the same time. you will need a USB connection for each of these devices that you wish to charge. There are even portable batteries that allow you to connect laptops!

¿Did you know that there is a power bank that has up to 48,000 mAh?

Shelf Life

The shelf life of a power bank refers to the number of times you can use the power bank that you buy. This term is otherwise known as “life cycles.” Usually, a power bank has between 500 and 1,000 life cycles. This is the number of times we can charge the power bank and use it before it stops working.

The shelf life is, of course, an estimated number and varies with each model. It also depends on how we use the power bank and other factors like the temperature, for example.

A battery’s charging capacity often decreases with time. It is important to know this before buying one.


To get the best quality and best-priced power bank, it is important to ask yourself how you are going to use it. First of all, you should know how many devices you need to charge at the same time. If you only want to charge your cellphone, you can buy a battery with only one port.

If you need to charge more than one device at the same time, you are going to need more ports. You should also keep in mind where you are going to take it. Do you want to keep it in your pocket, purse, backpack, etc.? Depending on these factors, you should buy a bigger or smaller power bank. Finally, think about if you are going to use it daily or just every once in a while.

If you want… You should buy…
A battery for daily use that you can take anywhere A smaller and more compact power bank
To use is as a flashlight A power bank that has this ability, usually through a LED light
To charge it with sunlight A solar power bank
A battery to charge my laptop A power bank with an AC port


Our cell phones have become a vital tool in our day-to-day lives. Because of its capacity, the battery usually does not last all day. A power bank is a perfect solution for these situations. It is a very versatile tool because you can charge many different devices with it.

Before choosing your portable battery, you should decide how you are going to use it. There are different options depending on what you want, for example, daily use or for going on long hikes or camping trips. You should choose the correct option for you. Whatever your case is, a power bank is a great tool to have on hand.

We hope that this advice has helped you with your doubts about power banks. If it helped you out don’t forget to leave a comment or share this article on your social media so that none of your friends will be on low-battery!

(Source of Featured Image: Yaroslav Kryuchka: 81353966/

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