Skip to content Skip to sidebar Skip to footer

10 Best Power Banks for Fast Portable Chargers

Smartphones are our everyday friends. Almost everywhere and no longer just used as a telephone: Thanks to cell phones, we are in constant touch with each other, getting information from the Internet, listening to music, watching movies, or taking photos. However, mobile devices have one major drawback: They consume a lot of energy and don't achieve long battery life. Since we use smartphones for many tasks, what is more important is that the phone does not turn off due to a dead battery. With the best power bank as a kind of extra battery, this annoyance can be easily avoided.

best power banks

The mobile energy storage device can be easily carried in your trouser pocket and fully charged the phone several times. This applies not only to smartphones, but also to almost any type of mobile device - for example tablets, MP3 players, digital cameras, and even e-cigarettes.

To get an initial idea, we've compared the 10 best power banks and rounded up their most important properties. This is followed by a guide with details on how mobile chargers work, the pros and cons, and the most important buying criteria.

10 best power banks in comparison

best power banks

1. Anker PowerCore A1271G11 Power Bank
  • Compatible phone models Apple iPhone 8, Samsung Galaxy S8
  • Lightning connector type
  • Voltage 5 volts
The Anker PowerCore A1271G11 power bank offers plenty of power with a battery capacity of 20,100 milliampere hours (mAh) and transmits up to 2.4 amps of current for each USB port. The input current for charging this phone battery is 5 volts or 2 amps.

With PowerIQ technology for fast charging: This power bank is equipped with PowerIQ technology. This is a fast charging technique developed by Anker. This fast charge function ensures that the power bank automatically adjusts the charging current to the device to be charged and charges it as quickly as possible.

The Anker power bank is equipped with two USB ports for charging mobile devices and a micro-USB port for self-charging. A multi-protection security system consisting of short circuit protection and overvoltage protection, is intended to ensure complete safety for both the user and the power bank.

The Anker power bank has a flat, rectangular, and monochromatic design. This model is available in black, white, blue or red. Its dimensions are 5.8 × 2.2 × 16.6 centimeters and it weighs 356 grams.

How often can the phone be charged with this power bank? How often a smartphone or other device can be charged with this power bank depends on the battery capacity of the device to be charged. To do this, consumers can compare the nominal capacity in milliampere hours, abbreviated as "mAh", that the battery has. A rough calculation can then be made. A battery with 2,000 mAh can theoretically be recharged ten times with this power bank. In practice, consumers should expect fewer charge cycles, since electricity cannot be transmitted without loss.

  • Travel bag included
  • With PowerIQ technology
  • Available in four colors
  • Relatively big and heavy
  • Relatively low battery capacity
best power banks

2. Jiga GN1 Power Bank
  • Samsung iPhone compatible phone models
  • Recommended use for product Charger
  • Lightning connector type
The Jiga GN1 power bank has a high capacity of 30,000 mAh, which according to the manufacturer offers 9 charges for the new iPhone, 7 charges for the new Samsung Galaxy smartphone and at least 2.5 charges for the iPad. The external lithium polymer battery can be charged with a USB-C cable, according to Jiga. The device's three USB inputs, USB-C input, Lightning USB input, and micro USB input support a maximum of 5 volts and 2.1 amps, respectively.

High security: According to the manufacturer, Jiga GN1 power bank has several smart security measures to protect the power bank from overcurrent, overcharging, overheating and short circuit during its 500 charge cycle life.

The power bank has a handy built-in flashlight that will provide ample light in the dark or at night. According to the manufacturer, five small LED lights at the top of the power bank indicate the current charging status in 20 percent increments. The power bank case is made of durable PVC. According to the manufacturer, it is suitable for use in camping, hiking and many outdoor sports.

What is the difference between volts and amps? volts and amperes are specifications for different units of measurement. Battery amperage is given in amperes. It describes the amount of energy that can flow through the body in a given time. Volts are specifications for mains voltage. This shows how strong the electric current pushes. Voltage must be understood as the driving force of electric current. The two values ​​are directly proportional to each other. This means that an increase in current will result in an increase in voltage and vice versa. Many manufacturers only provide information about the current strength in amperes.

  • Smart security features
  • Suitable for air travel
  • High capacity
  • Relatively heavy
best power banks

3. iPosible HX160Y1-xin Power Bank
  • Compatible phone models Apple iPhone X, Apple iPhone 8, Apple iPhone 7, Samsung Galaxy S9, Samsung Galaxy S6 Edge, Huawei P20 Pro, Apple iPhone XS Max, Apple iPhone 6S, Apple iPhone 8 Plus
  • connector type Lightning, Micro USB
  • Voltage 5 volts
The iPosible HX160Y1-xin power bank has a battery capacity of 25,800 mAh. Equipped with two USB ports for charging mobile devices with output voltages of 21 and 1 ampere, respectively. This makes it possible to charge two devices at the same time.

Safe Power Bank: According to the supplier, the iPosible power bank is protected against overcharge, overvoltage, overcurrent and short circuit, which ensures safe use.

The charging status of the HX160Y1-xin can be read via the four-point charging indicator. The indicator consists of four individual LED lights - each representing 25 percent battery charge. Equipped with a micro USB port for charging. This power bank has a rectangular shape and is available in black. It has dimensions of 15 x 7.5 x 1.5 centimeters and weighs 350 grams.

  • Multi-protection system
  • Relatively compact
  • With four-point charging indicator
  • Fingerprint free
  • Charging time is relatively long
best power banks

4. Anker PowerCore A1109G11 Power Bank
  • Lightning connector type
  • Voltage 5 volts
  • 5000 . battery capacity
The Anker PowerCore A1109G11 is a compact mini power bank powered by a working lithium polymer battery and its users offer a 5,000 milliampere hour (mAh) charging capacity. The remaining battery charge is indicated by the LED dot display. When charging mobile devices, this model works with an output voltage of 2 amps.

The handy Anker A1109G11 has a USB port for charging external devices and a micro USB port for charging the internal battery. According to the manufacturer, the existing PowerIQ feature allows automatic detection of connected devices and adjustment of charging current. This way, connected devices can be charged as quickly as possible to provide quick power back up.

Equipped with a multi-protection safety system, this model is protected against overvoltage and short circuit. The Anker A1109G11 has a monochrome design with a cylindrical shape. The dimensions of this power bank are 3 centimeters in diameter and 10.7 centimeters high. It weighs 136 grams.

What is short? A short circuit always occurs when the insulation of a cable or power line has been damaged. This reduces the electrical resistance that regulates the flow of electricity. A high amount of current flows through the device, resulting in high heat within the conductors. This may cause damage to the device or even fire.

  • Mini power bank
  • With PowerIQ technology
  • Compact dimensions and weight
  • Charging time is relatively short
  • Only one connection
  • Relatively low battery capacity
best power banks

5. Baseus Power Bank
  • Compatible phone models Apple iPhone X, Apple iPhone 8, Samsung Galaxy S9
  • Recommended use for product Charger
  • connector type USB Type-C
Powerbank Baseus has a battery capacity of 30,000 mAh. It works with an input voltage of 2 amperes and an output voltage of 3.4 amps. Thanks to the three USB ports, three mobile devices can be charged simultaneously with the power bank. The power bank itself is charged via the micro USB port.

According to the manufacturer, Baseus power bank can charge iPhone 8 2.5 times faster than related chargers.

According to the provider, Baseus Powerbank is protected from overcharging, over discharge, overvoltage, overcurrent, and short circuit. The charging indicator with four white LED lights indicates battery status, each LED light representing 25 percent battery charge. The flashlight is integrated into the power bank as a handy feature. The Baseus Powerbank has a black design and weighs 600 grams.

  • Color theme
  • With flashlight
  • With three connections
  • With four LED lights
  • With AUTO-IC technology
  • Multi-protection system
  • Relatively big and heavy
best power banks

6. INIU BI-B5 Power Bank
  • Compatible phone models Apple iPhone XS, Samsung Galaxy S10
  • Lightning connector type
  • 20000 milliamp hour battery capacity
The INIU BI-B5 power bank offers a lithium polymer battery with a capacity of 20,000 milliamperes hours (mAh). The charge status is displayed via an LED display that works with numbers and shows the charge level as a percentage. Multiple protections with short circuit protection, over voltage protection, over current protection, over charge and over discharge protection and temperature protection ensure device safety.

3-year warranty: The manufacturer emphasizes the quality of its power bank and provides a full 3-year warranty on the device.

Thanks to the three integrated USB ports, the INIU BI-B5 power bank can charge up to three external devices simultaneously. According to INIU, this model has a scratch-resistant case. This device is available in black. It weighs 363 grams.

  • With large LED digits
  • 3 years warranty
  • Three connections
  • Includes storage bag
  • Short charging time
  • Relatively low battery capacity
best power banks

7. ADDTOP Power Bank
  • USB Type-C connector type
  • Voltage 5 volts, 9 volts, 12 volts
  • Battery capacity 26800 milliamp hours
Power bank A ADDTOP with a capacity of 26,800 mAh has four USB ports that can be connected to the device to be charged. All four have 5 volts and 3 amps, making them suitable for most smartphones and tablets. Three ports are in USB-A format and one port is a USB-C port. This is also an input for charging the power bank.

With USB Power Delivery: This power bank is equipped with USB Power Delivery, which the manufacturer says is an advanced standard that can be used to quickly charge electronic devices including smartphones.

Charging the power bank takes up to 15 hours with a standard charger. If a USB-C charger with 18 watts is used instead, the time is reduced to 8 hours. However, a suitable power supply unit is not included in the shipping scope. The power bank is protected against overcharging, overheating and short circuit. The LCD screen provides information about the charging status of the power bank. This device is available in green color design.

  • With four ports
  • LCD screen with capacity display
  • Relatively short charging time of 8 hours
  • Relatively high battery capacity
  • Relatively heavy
best power banks

8. Power Bank HETP PB Y9
  • Compatible phone models IPhone 13/12/11/Pro/XS/XSMAX/XR/X/8/8 Plus/10/7/7 plus 6/6S/6/6S Plus etc, iPad 2/4 mini/2/ 3/4 water/air 2 Pro etc, Samsung Galaxy S22/S21/S20/S9/ S8/ S7/ S7 Edge etc, HUAWEI Xiaomi etc. Support any device camera, MP3 player, tablet, phone with usb port
  • Connector type Micro USB, Lightning
  • Voltage 5 volts
The HETP PB Y9 power bank runs on a lithium polymer battery and a 26,800 milliampere hour (mAh) capacity battery. The input voltage of this phone battery is 2.1 amps. For charging mobile devices, this model is equipped with two USB ports, each with an output voltage of 1 and 2.1 working amps.

With solar panels: This power bank is equipped with solar panels as a backup solution for normal charging via micro-USB connection. This allows sunlight to be converted into electrical energy.

The HETP PB Y9 power bank is protected against overcharging, over voltage, over current and short circuit. Battery charge is indicated via a four-dot LED display. Visually, the power bank from HETP is characterized by a completely black rectangular design with a large solar panel. Its dimensions are 15 x 7.4 x 1.5 centimeters and it weighs 350 grams.

How fast can the power bank be charged via a solar charger? How quickly a power bank can be charged via solar panels depends on various factors. The determining factor is the intensity of solar radiation. When the sky is cloudy, the power generation can be reduced by more than ten times. The orientation of the power bank is also important. The device should always be aligned in such a way that the solar panel surface is exposed to the sun vertically. If the sun is flat in the morning, it is advisable to place the power bank at a steep angle to the sun. Under optimal conditions, up to 300 milliampere hours (mAh) are generated by the solar panels.

  • Relatively high battery capacity
  • With solar panels
  • With four-dot LED display
  • In two color variants
  • Only two USB ports
best power banks

9. Anker PowerCore A1277 . Power Bank
  • Compatible phone models For iPhone XR/XS/X/8/8Plus/7, Samsung Galaxy and more
  • Connector type Micro USB, Lightning
  • Voltage 5 volts
The Anker PowerCore A1277 has a lithium-ion battery with a capacity of 26,800 mAh. According to the manufacturer, it can fully charge most smartphones more than six times and most tablets at least twice. The power bank has three USB Type A ports for charging mobile devices. The power bank itself can be charged via one of the two micro USB ports. According to the manufacturer, a full charge takes about 6 hours. The PowerCore A1277 displays your battery status via four white LED lights in 25 percent increments.

With the VoltageBoost function: The VoltageBoost function is a technology developed by Anker, with which the power bank automatically recognizes the electrical resistance of the cable and adjusts its charging speed for efficient charging. According to Anker, normal chargers don't account for cable resistance and thus become slower.

With the PowerIQ function, the Anker power bank has intelligent device recognition. It not only adapts its charging current to the resistance of the cable, but also to the device it is charging. According to the manufacturer, MultiProtect is a robust security system that combines overvoltage and short circuit protection with other safety specifications to allow safe handling of the power bank.

The Anker PowerCore A1277 shows off a completely black design. It measures 8.1 x 18 x 2.2 centimeters in length, width and height and weighs 495 grams.

  • Relatively high battery capacity
  • With three connections
  • With a short charging time of 6 hours
  • Smart device detection
  • Considering cable resistance
  • Relatively compact
  • Includes travel pouch
  • Relatively heavy
best power banks

10. Pxwaxpy HX160Y1 Power Bank
  • Recommended use for charger
  • Micro USB connector type
  • Voltage 5 volts
The Pxwaxpy HX160Y1 power bank is equipped with a lithium polymer battery equipped and offers a battery capacity of 26,800 milliampere hours (mAh). The current battery charge is indicated by a four-dot LED display. The phone battery operates with an input current of 2.1 amps and a rated output current of 2.1 amps on one USB port and 1 amp on the second USB port. Equipped with intelligent safety protection, this model is armed against overcurrent, overheating and overcharging.

The Pxwaxpy HX160Y1 power bank can be charged via the micro USB port. This model is equipped with two USB ports for charging external devices. This means that this power bank can charge up to two devices at once. The Charmas power bank is equipped with iSmart identification technology to charge connected devices as quickly as possible.

Visually, the Pxwaxpy HX160Y1 Powerbank is characterized by its flat and rectangular shape and its all-black design. Its dimensions are 15 x 7.5 x 1.5 centimeters and weighs 350 grams.

  • Relatively very compact
  • Relatively high battery capacity
  • With four-dot LED display
  • Recharge time 13 to 15 hours
What is a Power Bank?

power bank

A power bank is a portable battery that can be used to charge a smartphone, tablet or digital camera, for example, independently of a stationary power source.

How do power banks work?

A power bank consists of four components: housing, built-in battery, charging input and charging output. The power bank is powered through the input, which is usually a mini-USB or USB Type-C connection. How much electricity can be stored in a power bank depends on the specific number of milliampere hours (mAh) of capacity of the built-in battery. Most power banks have a capacity of 5,000 to 20,000 milliamp hours (mAh), which can fully charge a smartphone one to five times on average. Stored power can be transferred via the charging outputs, most of which are USB ports.

The majority of all power banks do not have an integrated cable. The built-in USB port makes it possible to connect different cables and charge different devices with it. Android phones with a mini-USB or USB Type-C connector can be charged, as well as iPhones with a Lightning connector from Apple.

What are the advantages and disadvantages of using a power bank?

Our smartphones make many everyday things easier and it's hard to imagine most people's lives without them. Compared to classic phones, they have one major drawback: Due to the constant connection to the mobile data network and large high-resolution screens, smartphones have short battery life. With intensive use, smartphone batteries often only last a few hours. If you're on the move and can't charge your phone, you'll have to do it without the convenience of your smartphone functioning and out of reach. By using the power bank as a battery, the operating time of the smartphone can be doubled or tripled independently of the socket. With the addition of a battery, the phone battery will no longer run out quickly. Ideally, there would even be a cable for the cigarette lighter in the trunk.

Power banks are not only suitable for charging smartphones. All types of mobile devices can be charged with most models - for example tablet PCs, smartwatches, MP3 players or e-cigarettes.

A common disadvantage of power banks is qualitative differences. Cheap power banks often lose battery capacity quickly or don't offer the advertised capacity. If you want a power bank with a high battery capacity, you will often have to go with a heavy, heavy model.

  • Increase the runtime of mobile devices that don't depend on the power outlet
  • Suitable for various types of mobile devices
  • Cheap power banks often lose battery capacity quickly
  • Power banks with high battery capacities are often heavy and bulky
How much does a power bank cost?

power bank

Power banks have affordable prices. However, there is a price difference. Whereas small models with low capacities can be found in the single digits, for a power bank with a capacity of more than 20,000 milliampere hours (mAh) a mid-two digit number should be budgeted. In general, the following costs should be expected before purchasing a power bank:
  • Power bank from lower price range - price: 5 to $20
  • Power bank from mid price range - price: 20 to $50
  • Power bank from the top price range - price: from $50
Internet versus specialist stores: where is it worth buying a power bank?

Power banks are not only available in electronics stores, but also in department stores and supermarkets. If you want to take personal advice as the biggest advantage of local trade, you should visit a specialist shop. In addition, offline purchases are usually impractical. The selection of available models is as limited as the options for comparing individual power banks against one another. In the worst case, it can take a lot of time and visits to several stores to find a suitable power bank.

The internet offers better conditions for purchasing a suitable power bank. Here, consumers not only have a choice from almost all currently available models, but there is also an optimal opportunity to obtain complete information before buying a power bank and comparing individual models with each other. As soon as the best power bank is found, orders can be placed conveniently and quickly from home. In the end, the advantages of the Internet outweigh the disadvantages. That doesn't mean that you can't find good power banks at local stores with more effort.

Power bank buying advice: What to consider when buying a power bank?

If you want to make the right decision when buying a power bank, you have to consider several factors. To make it easier for our readers to make purchasing decisions, we have listed the most important criteria in the following sections. This includes:
  1. Battery capacity
  2. Battery type
  3. Connection: input and output
  4. Input and output current
  5. Loading time
  6. Measure and weight
  7. Furniture
Battery capacity

power bank

Before buying a power bank, it is first necessary to determine how high the battery capacity of the phone should be. Consumers should be guided by the battery capacity of the device to be charged. Simple 1×1 doesn't apply here. For example, if a cell phone battery has a capacity of 2,000 milliampere hours (mAh), it can't be charged five times with a 10,000 milliampere hour power bank even if it appears mathematically.

In the previous example, it is very likely that the smartphone can only be charged three to three and a half times with such a power bank. This is because the power bank battery loses energy in the form of heat during the charging process, which cannot be passed on to the connected devices. In order to guarantee at least one full charge, the power bank must have about 20 percent more capacity than the device it is charging. In the following we have listed the guide values ​​for frequently used mobile devices:
  • Digital camera: minimum 1000 milliamperes (mAh)
  • Smartphone: between 2,500 and 5,000 milliamp hours (mAh)
  • Tablet: at least 10,000 milliamp hours (mAh)
  • Laptop: minimum 20,000 milliamp hours (mAh)
General efficiency plays an important role. The higher the charging current applied to the power bank, the lower the efficiency. The same is true if the power bank is used at low temperatures. In this case, it may happen that the capacity is temporarily not available as widely as stated by the manufacturer.

Battery type

An important aspect when choosing a new power bank is the type of battery used. Modern power banks work almost exclusively with lithium-ion batteries or lithium-polymer batteries or two internal batteries. Lithium-ion batteries offer the advantage that they usually have a low self-discharge rate. This means that the battery loses only a small amount of stored electricity when not in use. The main advantage of a lithium polymer battery is that it achieves more charge cycles in most cases. That means lithium-ion batteries have a longer average life.

Longer life expectancy through "shallow charge": The number of charge cycles can be expected to be increased for all rechargeable batteries via shallow charge. It is important that the battery is not overcharged or completely discharged. In the best case, the battery charge should be between 20 and 80 percent permanently.

Lithium polymer battery is an advanced lithium ion battery. The biggest advantage of this type of battery pack is its light weight and the fact that it does not use liquid electrolytes. As a result, lithium polymer batteries can be installed in compact housings of various shapes. Apart from the lower life expectancy, the drawback of this type of battery is the lower energy density. This means that a lithium polymer battery of the same size can store less power than a lithium ion battery. Another disadvantage compared to lithium-ion batteries is that polymer batteries are sensitive to temperature extremes, overcharging, and damage.


Most power banks are equipped with a micro USB port and a regular USB port for input and output. The power bank charges via the micro USB port and the normal USB port allows charging of mobile devices. On models from the mid to high price range, consumers often have multiple USB ports available. This allows multiple devices to be charged from one bank at the same time. In addition, a power bank is offered in which connection options are integrated in the device. This offers the advantage that no separate cable is required. If you choose such a device, you should make sure that all the connection options for the device you want to charge are available - micro USB, USB type C, or Lightning connection.

Input current

The input current and output voltage of the power bank must match the input voltage of the end device matched as far as possible. Minor deviations are not an exclusion criterion. Larger deviations should be avoided. Otherwise, the device to be charged may be damaged. Most smartphones receive electricity with a voltage of 5 volts and a current of 1.5 amps. The actual value can be seen in the manual. Basically, the higher the voltage and current, the faster the charging process can take place.

For better compatibility, many power banks are able to adapt to the charging voltage of the device to be charged.

Charging time

The charging time of the power bank depends on its battery capacity. The more power the battery can store, the more time it will take to fully charge. A power bank with a battery capacity of 10,000 milliampere hours (mAh) requires an average of about 5 hours for a charging cycle. If you want to be safe, you should pay attention to the manufacturer's information about charging times. Some models are equipped with special technologies designed to optimize loading times.

Measure and weight

power bank

The dimensions and weight of the power bank depend on the battery capacity. The higher the battery capacity of the phone, the bigger and heavier the device. While small and compact power banks usually have a cylindrical shape, larger ones are reminiscent of external hard drives with a rectangular shape. Therefore it can be said that the shape of the power bank changes as the battery capacity increases. When high capacity is not required, consumers can turn to small power banks for portability. For longer trips and charging different devices, it is recommended to use a bigger power bank with higher battery capacity.


Most power banks are just portable batteries with USB ports. But there are exceptions. Some specimens are specially equipped and offer the possibility of further use:
  • Passthrough Capability - A power bank with passthrough capability can charge mobile devices while charging itself.
  • Fast charging function - With the help of the fast charge function, the power bank can optimally adapt the charging process to the respective device and charge it as quickly as possible.
  • Flashlight – Some power banks are equipped with a small LED light that can function as a flashlight. This can come in handy when camping or hiking at night, for example.
  • Solar panels - For long trips, it might be a good idea to buy a power bank with solar panels. This means that the phone battery can be recharged in the sun and the device can be recharged.
  • Charge level indicator - The charge level indicator allows to get a precise overview of the charging situation of the power bank. Many power banks are equipped with a four-dot LED display to indicate the charge level. There are some models that come with an integrated display and show percentages.
Which famous power bank manufacturers are there?

power bank

Power banks are available from well-known manufacturers as well as from lesser-known companies. We would like to briefly introduce three of the most well-known power bank manufacturers in the following sections.


The Anker company was founded in 2011 by former Google employee Steven Yang. He moved from California to Shenzhen, China, and founded his company there. Anker's early product range has shifted from laptop batteries to smartphone chargers and power banks over time. In 2018, Dongping Zhao took over the management of the company. He is Google's former "Head of Sales" in China and has been with Anker since 2012. Until 2017, Anker marketed its products exclusively on Amazon. The company now offers its devices across various retail chains.


PowerADD was founded in 2010. The company's product portfolio includes a wide range of electronic devices and accessories. The PowerADD range includes headphones, speakers, phone cases and charging cables. PowerADD powerbanks are known for their good price-performance ratio and are offered in different capacities. PowerADD offers a compact 5,000 mAh model and a large "handheld generator" with a battery capacity of up to 73,000 mAh. provide decent performance.


Tronsmart was founded by Eric Cheng in 2013 in the Shenzhen Special Economic Zone. The company name is a combination of the terms "electron" and "smart" - in English: "electron" and "smart". The company's first product was a wireless HDMI display adapter. Every year, Tronsmart brings more products to market, such as Bluetooth speakers, headsets, Bluetooth in-ear headphones, or power banks. Tronsmart power banks are found in the middle to lower price range.

In addition, of course, there are other manufacturers and brands such as Jetech, XLayer, Omar's RAVPower, Baseus, Coolreall or Aukey.

4 mistakes to avoid when charging a power bank

power bank

The power bank is harmless as long as the user pays attention to proper operation. There are several sources of error that should not be ignored when dealing with power banks. Below we have collected four common mistakes. This applies not only to power banks, but also to all electronic devices that work with an integrated battery - for example smartphones, notebooks or tablet computers.
  1. Avoiding temperature fluctuations: Large temperature fluctuations are one of the most common reasons why batteries fail or are no longer as strong as before. This applies equally to cold and heat. Consumers should be careful not to leave their power bank in the hot sun or use it unprotected when the temperature is very sub-zero. Otherwise, the device's battery cells may be damaged, which not only means loss of capacity, but can also be damaged to the point of being unusable.
  2. Turn off the power bank after charging: The power bank produced in the EU is equipped with a protective function that can be used to avoid overcharging. Anyone with such a device need not consider this tip. If you use an anonymous power bank from abroad or the Far East, you must turn it off after charging. Otherwise, the battery can be recharged and thus lose capacity. It can also overheat and damage the power bank.
  3. Charging USB devices with the power bank when it is very hot: If the power bank is very hot, this could indicate an internal malfunction. To be safe, it is recommended to stop the app and replace the device or send it to the manufacturer as faulty.
  4. Checking the power bank for damage after a fall: Damage may occur if the power bank falls to the ground. Lithium-ion batteries showing external damage should not be used under any circumstances. To reduce the risk of damage from falling, it is recommended to use a power bank bag.
Using a power bank outside – what to consider?

power bank

The power bank is mostly used while traveling where there is no socket. To ensure a long service life for the power bank, the following three points should be considered when using it outdoors:
  1. No temperature extremes: When it's very cold outside, the power bank is best carried in a pocket on your body. It is also important to ensure that the power bank is protected from direct sunlight.
  2. Beware of getting wet: There are some power banks that are waterproof and can even be submerged for a short time. When it rains, a power bank without a water shield is better kept in your pocket.
  3. Separate transportation: The power bank is strong enough to carry in your trouser pocket or jacket or backpack. It is important that the user pays attention to what else is in his pocket. Sharp and hard objects, magnets, stones, metal scraps and the like can damage the power bank. If possible, the device should be transported separately or in a power bank case.
Powerbank on the plane - what to consider?

Transport in luggage is prohibited by all airlines. Most airlines allow you to carry a power bank in your carry-on bag. There are no general rules that apply to carrying a power bank on board. While there are guidelines from airline umbrella organizations, these are not applied by all airlines. The regulation stipulates that power banks with a capacity of 100 watt hours cannot be transported by airplane.

A simple calculation can help determine if the power bank is below the maximum limit of 100 watt hours. To do this, the capacity of the power bank battery in milliampere hours (mAh) is multiplied by the voltage in volts. To get the watt-hour value, the result must be divided by 1,000. The following calculation example:

10,000 milliampere hours (mAh) x 5 volts / 1,000 = 50 watt hours - power bank can be carried on board.

When in doubt, the consumer should find out from the airline concerned which regulations apply to the carriage of the power bank prior to arrival. This avoids having to leave the phone battery at the airport.

Frequently asked questions about power bank

Which is the best power bank?

The "best" power bank doesn't exist. Every user has different requirements for cell phone battery. If you pay attention to all the tips in our guide, you have a good chance of finding the best power bank for your individual needs.

Why does the power bank have a lower battery capacity than specified?

It's natural that a 10,000 mAh power bank can't charge a smartphone with a 2,500 mAh battery capacity exactly four times. Two factors are responsible for this: loss of performance during transfers and power bank security backups. Power bank batteries lose energy in the form of heat while they are being charged. As a result, the battery capacity cannot be fully utilized.

As is the case with most battery-powered devices, the power bank should not be completely empty to protect the battery. For this reason, many power banks work with safety electronics - the so-called safety backups. This locks in remaining costs by 5 to 15 percent.

How many charge cycles does the power bank achieve?

How many theoretical full charge or charge cycles from 0 to 100 percent a power bank can withstand depends on the technical nature of the battery. The difference is big. The power bank achieves between 300 and 1,500 charge cycles. The manufacturer's information on expected charge cycles is a guide value which cannot be guaranteed.

What could be the reason the power bank is not charging?

If the power bank can no longer be charged, there are several possible causes. On the one hand, the battery can be "damaged" or defective. Another possibility is that the problem is not in the power bank, but in the connected charger cable. Broken cables are not a common cause of charging problems. The following tips can help with charging:
  • First you should try charging the power bank with a different cable. In this way, a broken cable can be ruled out as the cause.
  • Feathers or other debris often accumulate in the charging socket and prevent charging. In this case, the charger socket can be cleaned with a compressed air spray or brush.
  • If the power bank has not run out, it can help to completely discharge the battery and start the charging process again.
When in doubt, consumers with such problems should contact the manufacturer of the power bank. They may be able to replace the device as a sign of goodwill beyond the official warranty period.

Are power banks suitable for charging laptops?

Most power banks are not suitable for charging laptops. Various requirements must be met for it. The basic requirement for charging a laptop is an available DC output. This makes it possible to connect adapters for different laptops. To provide sufficient current to operate the laptop, the power bank must have an output voltage of at least 9 volts. The battery capacity should have a value of 30,000 milliampere hours (mAh) not fall below. Otherwise, modern laptops cannot be fully recharged.

Is there a power bank with a socket?

Yes, there are large power banks with integrated sockets. These often offer battery capacities in excess of 40,000 milliampere hours (mAh) and, with their high output voltages, are not suitable for charging mobile devices. With such a power bank, laptops, speakers or fans can be operated independently of a stationary power source.


After reading our reviews, have you found the right product? Each power bank has its own advantages. For that, compare each product and choose the product according to what you need.
We recommend that you focus on one or two strengths that you feel are important. Then, choose the best power bank based on these advantages. Take our suggestions as a reference when you are looking for a power bank.

Post a Comment for "10 Best Power Banks for Fast Portable Chargers"