Guide to buying a Power Bank
If you’ve made it this far, congratulations! you are really interested in getting to know this practical accessory.
In this section we will tell you the aspects that we consider most important when buying a power bank, so you can choose the model you really need and not just taking into consideration the one that has the most 5-star ratings on Amazon:
What is a Power Bank?
A power bank is an electronic device that stores energy and then supplies it to other devices that have a low battery level.
Their most common use is with smartphones. Many people use their mobile intensively every day and need to recharge it every now and then. The problem arises when there is no electrical outlet nearby. The power bank is an ideal solution in these situations.
However, even if this is their most extensive use, it is not the only one. The power banks can also be used with other devices that are recharged through a USB charging port such as, for example, tablets, ebooks, cameras, bluetooth speakers … and you know that there are models capable of recharging a laptop or even starting a car?
What accessories are usually included?
In general, when we buy a power bank on Amazon we find the following accessories:
Power banks include at least one USB cable designed for charging the internal battery itself. Also, depending on the type of ports included, this cable can have a micro-USB, Lightning or USB-C connector.
Of course, this cable can also be used to charge a device.
However, in case the power bank includes more than one USB out port to charge various devices at the same time, you should know that, with some exceptions, the manufacturer does not include additional cables.
Power banks do not include a USB charger.
If you buy a large capacity power bank it is advisable to use a charger with sufficient power (W) to recharge it in a reasonable time. On this section we explain the reasons.
In general, power banks do not include a Lightning cable, except when their input port uses this type of connector.
If you need to charge an iPhone or iPad you can use the same Lightning cable as your iOS device, purchase another cable or Lightning adapter connected to the power bank’s micro-USB / USB-C charging cable.
However, we recommend that you take a look at these Apple friendly models.
Optionally, some brands include a carrying case to carry both the power bank and the charging cable inside, in addition, it protects the entire surface from possible scratches.
Capacity and portability: seek balance
The capacity of a power bank is measured in milliampere hours (mAh) and indicates the amount of energy it stores in its battery.
In general, the greater the capacity of the power bank, the more energy it can store and, therefore, the more recharges we would have for our devices.
However, greater capacity also means an increase in size, weight and price.
On Amazon you will find thousands of power bank models with different capacities and technologies, for this reason, to choose the most suitable model, it is important to be clear:
Which devices do you want to charge: smartphone, tablet, laptop (laptop) …
Where will you take it: backpack, pocket …
What frequency of use: will the use be daily or eventual, such as trips, excursions …?
If your smartphone needs an extra contribution of energy to get to the end of the day, there is no need to buy a 20,000 mAh power bank, with a 5000 mAh or 10000 mAh model it is sufficient for a partial or full charge of the smartphone.
On the other hand, if you need more energy because you want to recharge your smartphone with a power bank several times and / or recharge various devices (tablets, bluetooth headsets, laptop …) then it would be better to focus on power banks with a capacity of 20000 mAh. or higher.
Charging a Power bank
Just as we use a USB charger to recharge a smartphone or other electronic devices (tablets, smartwatches, earphones …) a power bank is recharged in the same way, that is through a micro USB or USB-C input port.
However, it must be taken into account that the charger is usually not included in the purchase of the power bank:
This may be inconvenient when recharging a large capacity power bank (20,000 mAh or higher) because the charging time would be excessively long if using a low power charger, for example, a 5 watt one (5W = 5V x 1A) whatever you can have at home.
For this reason, it is important to pay attention to the charging specifications of the power bank to use a charger that is capable of providing the necessary power (W):
In the previous image, we see that the power bank admits a power of 9W (5W x 1.8A) in its input port, therefore, it would be advisable to use a charger that is capable of providing a higher power of 10W (5V x 1.8A) or 12W (5V x 2.4A) to reduce the charging time.
On the other hand, you must take into account that the new generations of power banks admit a greater charging power (18W, 45W, 60W …) thanks to the fact that their input ports admit the Quick Charge 3.0 (QC3. 0) and / or Power Delivery, therefore, using a compatible charger, the charging time decreases considerably.
Charging devices with a Power bank
Depending on its size and features, a power bank can have one or several USB out ports. The advantage of having multiple ports is the ability to charge several devices at a time.
Its specifications indicate the voltage (V) and the maximum current (A) that each output port of the power bank can supply.
However, this does not mean that when you recharge your device, the power bank supplies it with the maximum current, because recharging takes place according to the current that the device admits and that which the power bank can supply.
If the power bank has an output of 2.1A max. and your smartphone requires 1A then the power bank will provide it with 1A. In this case, the smartphone would recharge at maximum speed because the power bank can supply the required current without problem.
If, on the other hand, your smartphone charges at 2A and the power bank only supplies 1A, then the smartphone would charge more slowly because it receives less energy.
The more current supplied by a power bank, the less time the device we are charging takes to recover its capacity, taking into account:
The maximum current (A) that the power bank is capable of supplying and admitting your device.
The potential difference (V) between the power bank and the device is maintained.
Simultaneous charging of devices
If you want to use a power bank to charge several devices at the same time, it is important to take into account characteristics such as the total current it can provide between all its ports and intelligent charging to distribute the total current in an optimal way among the connected devices:
Total current of a power bank
First of all, you must know that the total current that a power bank provides does not necessarily have to be the sum of all its ports:
For example, the power bank in the following image has 2 USB out ports providing 1 and 2.1 amps of current (A):
If we add up the output currents of each port (1A + 2.1A) we could think that the total current capable of supplying this power bank is 3.1A.
However, this model was designed to deliver 2.1A maximum current when charging 2 devices at the same time.
This feature should be provided by the manufacturer and we should take it into consideration when choosing a model to recharge connected devices faster.
Suppose we want to charge 2 devices at a time that admit a current of 1.8A each, that is, a total of 3.6A.
If we want these devices to recharge in the shortest possible time, it would not be advisable to use this power bank because it only provides a maximum current of 2.1A between its 2 ports and, therefore, the charging time of the devices becomes longer because the current received is less than the maximum supported.
What is smart charging?
Smart charging is a system that incorporates many power banks of specialized brands and consists of distributing the total current among all connected devices to optimize the charging process, that is, that the power bank supplies the current between the ports according to what is required from any device.
We only talk about intelligent charging when we have 2 or more devices connected at the same time in the power bank (simultaneous charging).
Let’s continue with the example of a power bank with 2 USB output ports of 1A and 2.1A capable of providing a maximum current of 2.1A.
If we connect a device that charges at 0.5A to one of the USB ports of the power bank, we would have 1.6A (2.1A-0.5A) free to supply to another device:
With smart charging:
Independently of the puerto al que se conecte el device which charges to 0.5A, el otro puerto de el power bank podría suministrar hasta 1,6A para cargar a device.
For a long time, when the power bank keeps charge inteligente no tendría sentido indicate in the especificaciones the corriente de cada puerto until only the total corriente that can suministrar the power bank.
Without smart charging:
The remaining current is not distributed from one port to another, then there is a need to pay attention to the port where we connect each device to optimize charging, for example:
By connecting the device charging at 0.5A to the 2.1A port we would have 1.6A remaining (up to a maximum of 2.1A), but since the other port is 1A we are wasting the remaining 0.6A.
By connecting it to door 1A in the other door we could take advantage of the remaining 1.6A because the output is up to 2.1A.
How many recharges can be done with a Power bank?
When buying a power bank, it is normal to think that its declared capacity will allow us to recharge our smartphone a certain number of times simply by dividing the capacity of the power bank between the capacity of the device.
For example, if the battery of our smartphone is 3000 mAh and we buy a 6000 mAh power bank we could recharge it twice.
A power bank cannot have 100% energy efficiency.
This means that the total energy transferred to the devices will always be less than its initial stored energy and, consequently, the number of recharges that we could perform.
In general, the power banks on the market are capable of transferring between 60-70% of their capacity (mAh) or, in energy terms, 85% of their stored energy (Wh).
If you want to learn more about the subject, you can find more information in this article on the real capacity of a power bank.
We can use this information to obtain a simple formula with which to estimate the number of recharges that a power bank can provide to a smartphone:
Number of Refills = Power Bank Capacity (mAh) x Overall Efficiency * / Device Capacity (mAh)
- We recommend using an overall efficiency of 60% (instead of 70%) to get an idea of the minimum number of possible recharges that our device would enjoy with a power bank.
Example: How many refills are 10000mAh?
If we want to buy a 10000mAh power bank to recharge our Samsung Galaxy S7 which has a 3000mAh battery, the approximate number of refills would be:
Number of refills = 10000mAh x 0.60 * / 3000mAh = 2 refills
Then a 10000 mAh power bank would be able to guarantee us 2 full recharges for our 3000 mAh smartphone assuming that the power bank has an overall efficiency of 60% (If after the performance is better, better for us because the number of recharges would be increased).
Another way of looking at it would be by establishing the number of refills you need, for example:
I want to charge my Samsung Galaxy S7 up to 4 times with a power bank.
If you know the capacity of the device * or devices you want to recharge you can use the above formula to know the capacity of the power bank you should buy:
Power Bank Capacity (mAh) = Number of Refills x Device Capacity (mAh) / Power Bank Performance
In our example, the power bank capacity we would need to charge the Galaxy S7 up to 4 times (minimum) would be 20,000mAh.
Power bank capacity (mAh) = 4 x 3000 (mAh) / 0.60 = 20000 mAh
Power bank for laptop: what to consider?
Although in the power bank market we can find different models to recharge a laptop, until a few years ago, the offer was less thanks to the fact that each manufacturer used a different power port to recharge their laptops, as there was no port. as universal as USB used on all smartphones (except Apple).
For this reason, power banks that allowed to charge a laptop included a specific charging port (DC port):
Additionally, they had to include adapters from different manufacturers to connect with the laptop’s power port:
As you can imagine, this is an inconvenience for both power bank brands who bet on this type of product as well as for users to find a power bank compatible with their laptop model.
Thankfully, the technology continues to evolve and there are currently new options for charging a laptop via a power bank:
Power banks with AC charging port (electrical socket): these are models that incorporate a 220V alternating current output port with which there would be no compatibility problems because we could connect them to the original laptop charger.
Power banks with USB-C PD charging port: if you have a laptop that uses the new USB Type C port as a power port, you can possibly recharge it through a power bank that has that same port and is compatible with Power Delivery technology ( PD).
However, we believe that the arrival of the USB Type C port together with Power Delivery technology will change the future of the power bank sector:
USB Type C is intended to be the standard power port of any electronic device: smartphones, headsets, cameras, Nintendo Switch … together with Power Delivery will allow powering high-powered devices: laptops, printers …
In this way, we should not depend solely on the manufacturer to find out if a power bank or charger is compatible with our laptop.
For example, large manufacturers, such as Apple, Xiaomi or Huawei, now include USB Type C in their notebooks both as a power port as well as for data transfer.
Sooner or later, from our point of view, the rest of the manufacturers will embrace this technology.
Once we have seen the different options for charging a laptop with a power bank, let’s see the main requirements that must be taken into consideration:
- Know the characteristics of your charger
First of all, we need to check the voltage (V) at which our laptop is charging by checking what the specifications of its charger are.
For example, in the following image we see that our Lenovo Z50-70 laptop charges at a voltage of 20 volts (V).
Therefore, we must choose a power bank that has an output port (DC or USB-C PD) with a voltage of 20V to be able to connect our laptop. NEVER HIGHER VALUE.
Secondly, we must also check the maximum power (W) that the charger can supply to our laptop:
For this example, we observe that this charger is designed to provide a maximum power of 65 watts (W).
This means that the output port of the power bank we are going to buy, in addition to working at a voltage of 20V, must be capable of providing that 65W * power.
Even if the charger indicates 65W, this does not mean that our laptop consumes 65W, depending on the type of use (office programs, Netflix …) maybe its average consumption is between 30W-35W and only requires more power on some occasions such as when starting up or when playing some video game …
Since we are not aware of the average consumption required by each user’s laptop, we recommend using the power indicated by the manufacturer in the charger as a guideline when choosing a power bank and thus guaranteeing its operation in your laptop.
If the power (W) does not appear in your charger, you will have to calculate it yourself by multiplying the voltage value (V) by the intensity (A):
Charger power (W) = voltage (V) x intensity (A) = 20V x 3.25A = 65W
- Choose your power bank
Once we know the charging needs of our laptop (20V voltage and 65W power), we must look for a power bank that replaces our charger, that is, that is capable of fulfilling these requirements:
Power bank with DC port
If we buy a power bank that has a DC port, in addition to checking the voltage and power of that port, we must check that the manufacturer includes a connector compatible with the power port of our laptop.
Power bank with USB-C PD port
If our laptop has a USB-C power port, in this case, we might look for a more modern power bank that includes a USB-C charging port with Power Delivery and, furthermore, that this port is capable of meeting the requirements. the aforementioned charging stations.
Power bank with AC port
If we choose a power bank with AC port directly we could connect the laptop charger and, therefore, we should only check the maximum power that this port can provide.
Of course, there are also more versatile models that combine various of these types of ports (AC, DC and USB-C PD).
Avoid buying poor quality “bargains” and power banks
Many times we let ourselves go for quantity instead of quality, on the internet you can find Chinese portable chargers that boast of their large capacity at a low (very low) cost.
We recommend that first of all there is common sense in this aspect, because it is better to spend a little more than to find yourself with a bad surprise, especially since we are not talking about an accessory that is too expensive.
In fact, there are very reliable brands such as Xiaomi, Anker, Aukey, RAVPower … which have a wide range of power banks at very good prices and, above all, with a guarantee, this confirms that we can buy a quality power bank without spending too much.
Frequently Asked Questions About Power Banks
After this extensive guide to buying a power bank on Amazon, we leave you some of the most frequently asked questions users have:
Can i take a power bank on the plane?
According to the International Air Transport Association (IATA), power banks for personal use are only allowed in hand luggage as long as their stored energy does not exceed 100 watt hours (Wh), that is, a 20000mAh power bank or 26800mAh of capacity.
To learn more about the subject, you can consult the IATA Official Dangerous Goods Regulations dated January 2020.
Besides my smartphone, what other devices can I recharge with a Powerbank?
With a power bank you can charge Android, Apple smartphones and any other device that recharges via USB, for example: tablets, bluetooth speakers, Nintendo Switch, smartwatch, Go Pro, Raspberry Pi, cameras …
How do I top up a Powerbank?
Like a smartphone, the power bank is recharged via a USB charger, and it can also be recharged with another power bank.
Exceptionally, it can be recharged through the USB port of a computer but it is not the most advisable option because this port provides little current (A) and, therefore, the power bank would recharge too slowly.
What type of charger should I use to charge my Powerbank?
You can use the smartphone charger, however, for faster charging of the power bank we recommend using the charger that provides the same power (W) as that indicated in the power bank input port.
You can take a look at our USB charger guide where you will find models of great power and with multiple charging ports.
Can I use my smartphone while charging via the Powerbank?
Of course you can, always having your cell phone nearby is one of the many conveniences that power banks offer. Although it wouldn’t be very convenient if you want the power bank battery to last as long as possible.
Can i charge an iPhone with a Powerbank?
Any power bank is good for charging an iPhone or iPad. However, the manufacturer does not include a Lightning cable but only a micro-USB or USB-C cable for charging the powerbank itself.
Despite this, you can always use your device’s cable or buy an “Apple friendly” power bank like the ones recommended here.
While charging the Powerbank, can I connect the smartphone to it to charge them both at the same time?
Yes, it is possible in most powerbanks, although it is not the most advisable solution if the powerbank is not ready for it.
This feature is called Pass Through Charging and, with the exception of some brands in the industry, most models do not implement it.
What capacity (mAh) does my device have?
You can find it in the instruction manual of the device by searching for its characteristics on Google, for example: “device model name + mah”.
My smartphone charges at 1A, could the Power bank ruin it if its output is 2A?
Don’t worry, a power bank only supplies the current (A) that the connected device needs.
How can I know the current that the Power bank is supplying to my smartphone?
Using a USB multimeter you can check the current (A) your smartphone is receiving while it charges. Another option is to download the Ampere app for an approximate measurement.
Which Powerbank port should I use to charge my devices faster?
If the power bank has no smart charging:
You have to connect the port that provides the most current (2A, 2,4A …) to the device with the largest battery (such as a tablet or iPad) and the 1A port to the smartphone or other lower capacity devices (kindle, smartwatch …)
If the power bank has smart charging:
You can use any USB port to charge a smartphone or tablet / iPad because this system reads the connected device (intelligent charging) and supplies it with the maximum current allowed to each device.
Which power bank to buy
At this point you should have quite clear ideas on how to evaluate the technical characteristics of a power bank. I would say, therefore, not to get lost in chatter and to see, together, which are the most interesting portable batteries of the moment. I bet you won’t have a hard time finding one that suits you!
Best economic power bank (max 20 dollars)
Poweradd Slim2 5,000 mAh
With a particular cylindrical design, the 5,000 mAh Poweradd Slim2 is an easily transportable power bank, even in your pocket. It is available in different colors and weighs only 118 grams, while as regards the length we have a measure of only 10 centimeters. It has 2A input and 2.1A output, and the battery status can be deduced from the four LEDs installed on the body. Among the available ports, all positioned in one of the two faces of the cylinder, we have a full-size USB and a micro-USB.
Anker PowerCore 5,000 mAh
If your smartphone has a standard USB socket (USB type A), you can buy Anker’s USB PowerCore 5000, another 5,000 mAh lipstick-sized power bank. It has a standard 2A USB port and a separate (microUSB) port for its own charging. It is just 10 cm long and 3 wide. It also has an LED for the residual charge.
Romoss Power Bank 10,000 mAh
Romoss’ power bank is an extremely compact “soap” size power bank (it measures only 2.3 x 9.1 x 6.4 cm and weighs 190 g) and, thanks to its 10,000 mAh, it is capable of providing enough energy to charge the battery of all popular smartphones and tablets. It features two standard USB ports for output, while a micro-USB port and a USB Type-C port are available for input.
PosuGear Power Bank 10,000 mAh
Another economic power bank model with good capacity is that of PosuGear, large 9.35 x 6.35 x 2.5 cm and weighing 220 grams. In relation to the integrated battery, from 10,000 mAh, the dimensions are quite compact, for a product that is certainly pocketable and versatile. It can charge two devices at the same time thanks to the two USB Type-A output ports, while for charging the integrated battery it uses a microUSB. There are also four LEDs that indicate the operating status of the device.
iWALK Power Bank 3,350 mAh
If you own an iPhone and are looking for a power bank that doesn’t force you to carry any cables and doesn’t take up too much space in your pocket or bag, you can opt for this 3,350 mAh model from iWALK. Thanks to the built-in Lightning connector, in fact, the connection can be made directly to the device. In addition, it is the size of a lipstick and has a convenient LED indicator to know the remaining charge.
Vancely Power Bank 10,000 mAh
If you want a low-end power bank capable of charging two devices simultaneously, I suggest this model from Vancely. It features a 10,000 mAh unit, two USB Type-A output ports for charging external devices and a microUSB port for charging the integrated battery. Different protection systems guarantee safe charging on both sides and, in addition, a microUSB cable is supplied.
Xiaomi Mi Fast Charge 3 10,000 mAh
The Mi Fast Charge 3 is a power bank from Xiaomi, a famous smartphone manufacturer, with an amperage of 10,000 mAh. It offers a slim and elegant design made of aluminum alloy, and support for 18W fast charging if only one output is used. There are two USB output ports in total, and we have two inputs: one USB Type-C, the other micro-USB. The integrated microchip allows the user to manage the charging and discharging processes in a completely transparent manner to optimize the duration of the integrated battery over time.
Aukey Power Bank 10,000 mAh
If you rely on the favor of the people, this Aukey power bank model is without a doubt the one for you. It is, in fact, one of the best-selling portable batteries of the moment and was designed by one of the best-known companies in the sector. Also in this case, we find two USB ports with 5V output, through which you can recharge up to two devices at the same time, and 2A and a micro-USB for battery charging. It should be noted that the design is made to ensure easy transport: the weight is in fact that of a traditional smartphone, or about 190 grams.
Anker PowerCore 10,000 mAh
Anker is one of the best power bank manufacturers in the world. Its products may not be as cheap as those of other brands but, as they say, you pay for quality! Among its most interesting products is the PowerCore 10,000, a 10,000 mAh power bank (capacity calculated on a voltage of 5V) equipped with a USB output port that delivers up to 2.4A and a micro-USB input port for the charge. It supports proprietary Anker PowerIQ and VoltageBoost technologies that automatically regulate the energy to be delivered to the devices, guarantee a very fast charge (although there is no support for Qualcomm’s QuickCharge technology in this model) and avoid overloads. Also noteworthy is the presence of an LED to check the status of the residual charge
Aukey Power Bank 10,000 mAh
This is another 10,000 mAh Aukey-branded power bank, but with integrated Lightning input, therefore designed mainly for those with an iOS device, and possibly also an Android device with a micro-USB port. There are both, in fact, as well as two full-size USB ports for a maximum output power of 3.4A. It also implements a low-current mode to charge small devices, such as smartwatches or smart bands.
Best mid-range power bank (20-40 dollars)
Anker PowerCore 13,000 mAh
As easily understood, this Anker-branded power bank is nothing more than an enhanced version of the model analyzed previously. It has a capacity of 13,000 mAh (calculated on a voltage of 5V) and has two USB output ports that deliver up to 2.4A each or 3A overall. There are also the “usual” PowerIQ and VoltageBoost technologies for delivering the right charge at the highest possible speed and the LED for the remaining charge.
Aukey Power Bank 20.000 mAh
This is one of the best-selling power banks on Amazon, as well as one of the most interesting portable batteries in the current Aukey catalog. It has a capacity of 20,000mAh and offers two 3.4A USB output ports plus a micro-USB port and a Lightning input port for charging. According to the manufacturer’s estimates, it allows you to charge an iPhone X up to 5 times and a Galaxy Note up to 4 times. It also has LEDs that indicate the status of the charge.
Yacikos Power Bank 25,800 mAh
This 25,800 mAh Yacikos brand power bank is ideal for those looking for a high-capacity product that, at the same time, can be easily carried in your pocket or bag. In fact, it is the size of a mobile phone and allows you to fully charge any smartphone at least 5 times and any tablet model at least 2 times. It has two USB ports for output and a micro-USB input for input. Also note the presence of a convenient LCD display to monitor the charge status.
Anker PowerCore Essential 20,000 mAh
The 20,000 mAh PowerCore Essential is another excellent power bank from Anker, designed especially for those who need a portable battery capable of ensuring multiple recharges for smartphones and tablets. It has two USB output ports through which full recharges of two mobile devices can be carried out simultaneously, supports the manufacturer’s already known PowerIQ technology, integrates a maintenance charging system for small devices, various protection systems and Both a USB-C and a micro-USB port are available for input.
Duracell Power Bank 10,050 mAh
A very interesting model of power bank in this price range is certainly the one proposed by Duracell. It is a portable battery that focuses not only on duration, having a capacity of 10,050 mAh, but also on aesthetics, as it resembles a common battery in every way. It has two USB ports for output that allow you to deliver energy simultaneously, a micro-USB port for input and a practical LED indicator that indicates the status of the remaining charge.
Anker Wireless PowerCore 10,000 mAh
The 10,000 mAh Wireless PowerCore is another portable battery made by Anker thanks to which it is possible to take advantage of wireless charging up to 5 W even on the move, as well as the more traditional wired charging, through the two USB ports that are offered, capable of deliver a total of 12 W. It also has a practical LED indicator that indicates the level of autonomy. For the input, there is a micro-USB port and the wireless Pass-Through function is supported, which allows you to continue to power the connected devices even when the portable battery itself is being charged.
EasyAcc Power Bank 20.000 mAh
If you need a power bank with many USB ports but do not want to spend more than 30 dollars, turn to this battery from EasyAcc which has a capacity of 20,000 mAh (calculated on a voltage of 3.7V) and offers four ports. output. The ports are in standard USB format and ensure an overall output of 4.8A, while the input port charges at 4A. According to the manufacturer’s statements, it can charge an iPhone up to 7.5 times, a Galaxy S6 up to 5 times, and an iPad Mini about twice. It also includes the flashlight and the LED for checking the remaining charge.
Aideaz Wireless Power Bank 10,000 mAh
Aideaz’s is a very valid power bank that stands out for its support for wireless charging, for the presence of a convenient display that signals the state of charge and for that of the directly integrated Lightning and miro-USB cables. Its capacity is 10,000 mAh and it also has a USB-C, micro-USB and Lightning port for input and a “classic” 5V USB port for output. Of course, it also supports various safety systems to avoid over voltage, over current etc.
Aukey USB C Power Bank 20,000 mAh
This Aukey 20,000 mAh power bank is very interesting for the possibility offered to charge up to two devices simultaneously, thanks to the USB port it is equipped with and the USB-C port with support for Power Delivery technology that can be used both for ‘output than for input. Also for input, a micro-USB port is also available. It also supports Quick Charge 3.0 technology and the low-current charging mode required for some devices, such as headphones, which cannot be recharged using standard power instead.
Aukey Quick Charge 3.0 20,000 mAh
Another power bank with interesting features, in relation to the price, is Aukey’s Quick Charge 3.0 20,000 mAh, with two standard-sized USB ports paired with a USB Type-C port and a micro-USB port. The output power is 2.4A, and there are usually several protection solutions, in order to prevent any overheating of the integrated unit.
Best high-end power bank (over 40 dollars)
Aikove Wireless Power Bank Rugged 30,000 mAh
This Aikove branded power bank model is characterized by the shell made of resistant silicone that protects it from rain, dirt and bumps, thus proving to be an excellent solution for travel and outdoor adventures, for its considerable capacity of 30,000 mAh and for the possibility to be recharged via the integrated solar panel. Obviously, it can also be recharged via electricity, using the micro-USB port, the Lightning input or the USB-C port. As for the output, however, it has two USB ports and also supports wireless charging. It is also equipped with an indicator to check the charge status and 12 LED lights to use as a torch.
RAVPower Power Bank USB C 26,800 mAh
This 26,800mAh power bank from RAVPower is one of the coolest in this price range, providing two iSmart input ports and two USB ports for charging 2.4A devices. The USB Type-C port is bidirectional and as regards the recharging of the other devices it is able to deliver up to 30W, while the micro-USB one is used only for recharging the battery. Included are two charging cables with a micro-USB terminal, and also a micro-USB to USB Type-C adapter.
Aukey USB-C Power Bank 26,800 mAh
The USB-C Power Bank 26,800 mAh is an excellent Aukey power bank with a high amperage, compatible with fast charging and the low current charging mode, to charge even devices with lower power requirements without problems. As can be easily deduced from the name itself, it has two USB-C ports, one of which works both in input and output up to 60W and one only in input up to 18W. It also has a common USB port, which is also capable of delivering a maximum power of 18W.
Charmast Power Bank QC 3.0 26.800 mAh
Charmast’s 26,800 mAh power bank is a valid solution if you are looking for a portable battery capable of charging a large number of devices, easy to carry thanks to its slim design and capable of guaranteeing a large degree of connectivity. In fact, it has three USB-A ports for output with support for Quick Charge 3.0 technology and a USB-C port that works both to charge the power bank itself and other devices with support for fast charging, up to 2A at the input. and up to 3A at the output. It has a multiple safety system to avoid excessive current flows, overheating and overloads and an indicator with 4 LEDs to keep an eye on the state of the charge.
Anker Power Bank PowerCore 26,800 mAh
This is another Anker power bank with a capacity of 26,800 mAh, through which it is possible to charge the battery of most smartphones on the market for over 7 times. It has three USB-A ports equipped with proprietary PowerIQ and VoltageBoost technology to ensure the fastest possible charging of 3 devices simultaneously (maximum output 6A) and has two micro-USB inputs for input that used in combination go to halve the time required to recharge the power bank. It also has an advanced protection system and a status indicator. The two cables to power the battery are also included in the sales package, as well as a practical travel case.
imuto Power Bank 27,000 mAh
In the price range in question we also find the 27,000 mAh power bank of iMuto, a large portable battery with a refined design that has Quick Charge 3.0 technology and a bi-directional USB Type-C port, so that it works both out and in. We then have two standard-sized USBs and a micro USB port, while everything is managed by iM-Power Auto-detect technology to provide adequate power to each connected device. There is also a display to know the remaining charge of the integrated unit at any time.
Novoo Power Bank 20.100 mAh
The Novoo Power Bank is not a product that is characterized only by the integrated battery, but above all by the presence of a two-pole electrical socket, the same ones we find at home! This power bank is designed for extreme situations, and also features a USB Type-C port, as well as a full-sized Type-A. It supports Quick Charge 3.0 and is compact and portable in almost any circumstance, with a length of 155mm and a diameter of 80mm. There is also an LED display.
Zendure A8 Power Delivery 26,800 mAh
Another very special product is the 26,800 mAh Zendure A8 Power Delivery, with large capacity battery and four full-size ports for charging external devices. It also integrates a USB Type-C Power Delivery port for charging notebooks, such as Apple’s MacBooks and MacBook Pros, all within an extremely durable design made with anti-crush and elegant composite material. The input port is a USB Type-C for reversible connectors.
Krisdonia Power Bank 50,000 mAh
With a capacity of 50,000 mAh, there is very little to say. This Krisdonia is one of the largest portable batteries ever, and is designed not so much for smartphones or tablets, as laptops. In fact, the package includes 28 connectors to be used for different types of devices, and in the package there is also a carrying bag, in addition to the charger. The dimensions are in fact important: 19.5 x 15 cm for the surface, 2.8 cm for the thickness, with a weight that exceeds one kilogram. Among the ports available we have a USB Type-C and two Type-A.
Litionite Hurakan 120W 41,600 mAh
Litionite’s Hurakan 120W uses a 41,600 mAh battery and is designed for smartphones, tablets, notebooks and any other mobile device, as well as drones. The weight is 1.8 kilograms, with dimensions of 23 centimeters in length, and 9 millimeters for each side of the base. It also has an AC electrical outlet, the same ones we find on the wall, this time universal, for a product designed for camping, hiking, and outdoor work. It has Quick Charge 3.0 technology and three USB ports for fast charging up to 2.4A.