Nowadays it is impossible to conceive a life without smartphones and mobile devices that constantly help us make payments, find streets, restaurants and any other type of information, also representing a good percentage of our daily entertainment.

Of course, these activities involve a considerable consumption of the device battery, greatly reducing the canonical 24 hours of use of a smartphone.

External batteries, or power banks, are useful devices especially for those who spend most of the day away from home since they allow access to a variable energy supply based on its nominal capacity, available for any USB device.

Here we have selected the best Power Banks for you. These can be a great present for a person who’s mobile charging is always low.

SaleRANK NO. 1
Wireless Portable Charger 30,800mAh 15W Wireless Charging 25W PD QC4.0 Fast...
  • Portable Charger [15W Max Wireless Charging]: Wireless portable charger support 5W, 7.5W,10W and 15W Max wireless fast charging....
  • 25W PD Fast Charging & QC 4.0 Fast Charing Output: portable charger with 25W power delivery 3.0 output and quick charge 4.0...
  • Simultaneous Charging + Smart LED Indictators: Get a 15W wireless charge for your Qi-Certified cellphones while charging another...
  • High Capacity & Safe of Power Bank: 30,800mAh capacity can charge more than 8 times for iphone 12 and 6 times for iphone 12 pro...
  • What You Get: FOCHEW Wireless Portable Charger (2021 Version), Micro USB Cable (Not including USB C cable), User manual. And 24...
RANK NO. 2
Anker Portable Charger, PowerHouse 100 97.2Wh with 100W AC Outlet/45W USB-C...
  • Built-In 100W Wall Outlet: Charge mobile devices, laptops, drones, cameras, and small appliances—all from a single compact power...
  • Simultaneous Charging: With a 45W USB-C port, 2 USB ports, and a 100W AC outlet, you can now charge up to 4 devices at once...
  • Huge Capacity: Equipped with a huge 27,000mAh capacity to charge a 2020 MacBook Air 1.5 times, a DJI Mavic Mini 3-4 times, and an...
  • High-Speed Charging: Use the 45W USB-C port to fully charge a 2020 MacBook Air in just over 2 hours.
  • What You Get: PowerHouse 100, 45W USB-C charger, USB-C to USB-C cable, USB-A to USB-C cable, lanyard, travel pouch, welcome guide,...
RANK NO. 3
Portable Power Bank with AC Outlet, 146Wh/39600mAh 110V/100W Laptop Charger...
  • 【Portable Power Station with Large Capacity】With a capacity of 146Wh/39600mAh lithium-ion battery pack, this portable power...
  • 【Portable Laptop Charger with Multifunction Outputs】This portable power bank feasures with 7 outlets. 2x AC outlet (110V/100W)...
  • 【Three Ways to Recharge】This power bank can be recharged by 13-23V solar panel (not included) to become a solar generator,...
  • 【Lightweight with LED Flashlight】The portable battery power bank is portable, compact and lightweight, which fits perfectly in...
  • 【What You Get】You will receive 1x Apowking 146Wh portable power bank, 1x AC power adapter, 1x car charging cable, 1x carport...
SaleRANK NO. 4
INIU Portable Charger, 22.5W PD3.0 QC4.0 Fast Charging LED Display 20000mAh...
  • ✅【From INIU--the SAFE Fast Charge Pro】Experience the safest charging with over 38 million global users. At INIU, we use only...
  • ✅【Charge Your Phone up to 58% in 30 Mins】With the upgraded 22.5W output plus the latest PD3.0 & QC4.0 fast-charge...
  • ✅【2022 Version USB C Input & Output】Unlike most chargers featuring a USB C input only, INIU MegaPower 225W has a USB-C In &...
  • ✅【7 Days of Safe Power】Enjoy a full week’s worth of charging capacity with the airline-approved 20000mAh power bank.
  • ✅【Charge THREE at Once】With one USB-C port and two USB ports built-in, it can juice up THREE devices simultaneously....
RANK NO. 5
50000mAh Power Bank, Nuxgal Power 18W PD USB-C Quick Charge Portable Charger...
  • 【Ultra-high Capacity】: 50000mAh large-capacity power bank supports iPhone11 charging 10 times, Samsung S10 charging 10.4...
  • 【4 Outputs and 3 Inputs】: Battery banks provide Micro, Lightning and Type-C inputs, you can flexibly match different types of...
  • 【High-speed Safety Protection】: Powerful 18W PD output and input, exciting charging speed; High-quality lithium polymer...
  • 【Intimate Design】: Battery pack hand-held lanyard design(not detachable), convenient to carry or hang it to your rucksack; LED...
  • 【After-sales Warranty】: Once you encounter a product problem, we will replace it for you free of charge, the we also provide...
SaleRANK NO. 6
200Watt Portable Power Bank with AC Outlet, Powkey 42000mAh Rechargeable Backup...
  • 【PORTABLE AND MULTI-FUNCTIONAL】:2 x 110V AC power socket(pure sine wave,total max 200W in total, please check the power...
  • 【FAST CHARGING 15V/2A DC INPUT】:Recharge the power bank faster than ever with the 15V/2A DC input, only need 6-7 hours to get...
  • 【PURE SINE WAVE AC OUTPUT】:Better than modified sine wave, cleaner current in your hands; it prevents crashes in computers,...
  • 【HIGH CAPACITY WITH SUPER SMALL SIZE】: 4,2000mAh Grade A lithium polymer battery,with only 3.0 lbs net weight(4 lbs gross...
  • 【QUALITY and WARRANTY】:Contains the highest quality available lithium-ion battery cells.CE FCC ROHS UL MSDS UN38.3, and...
RANK NO. 7
Omni 20+ 20000mah Laptop Power Bank | AC/DC/USB-C/Wireless Battery Backup for...
  • 【Power Hub For All Your Smart Devices】From laptops to cameras, drones, and smartphones, Omnicharge can keep all your devices...
  • 【Extensive Features】All-In-One power solution with high powered AC, USB-C PD for laptops, Wireless charging, QC 3.0 USB-A,...
  • 【High Powered, Fast Charging】70wh (20000mah) battery capacity. Charge safe and fast with high charging efficiency. 100 watt AC...
  • 【Carry Less, Power More】Carry one cable to charge your laptop using USB-C or DC output while charging your Qi-compatible...
  • 【Accessories】The Omni 20+ includes a USB charging cable and a USB-C charging cable. NOT INCLUDED: Fast charger and DC cables...
RANK NO. 8
DEWBU 7.4V Power Bank with Intelligent Led Display Battery Charger for Heated...
  • NOTE: The DEWBU 7.4V battery only can be used for the 7.4V Heated Jackets, compatible with other 4MM-interface 7.4V Heating...
  • INTELLIGENT LED DISPLAY:The Red LED digital screen lets you know how much power remains in the battery.
  • CAPACITY: 5000mAh (DC Output) ,DC Input: 8.4V1.0A,DC Output: 7.4V2.1A Max,USB Type-C Input: 5.0V2.1A,USB Type-C Output: 5.0V2.1A...
  • CERTIFIED SAFE: DEWBU Power bank is UL, FCC, CE, and ROHS certified.
  • WHAT’S INCLUDED: DEWBU 7.4V Power Bank×1,Charging Cable×1,Quick Start Guide×1.
RANK NO. 9
CPAP Battery Backup MAXOAK CPAP Power Bank Compatible with Airsense 10/Aircurve...
  • LONG LASTING CPAP Battery Backup 297Wh(Not TSA Approved), Compatible with 12V/24V CPAP Such as Philip System one 60&50...
  • CPAP User’s TRAVEL/CAMPING POWER COMPANION-It Has 3 DC Outputs 12V5A/15V4A/24V4A which Designed for Devices Such as...
  • PORTABLE&LIGHTWEIGHT: Net Weight about 4.1LB,Size L8.7inch*W2.5inch*H7.9inch.Possibly the Smallest Size for Such High Capacty on...
  • SAFETY GUARANTEED: It Built in auto-level Lithium battery cell , High Cost and Highly Qualified Battery Cell Ensure its Safety....
  • What You Will Get- 1* Portable Power Bank(297Wh), 1* AC Adapter Charger(25.2V/3A), 1*DC to Airsense/Aircurve 10 Cable, 1* DC to...
RANK NO. 10
Krisdonia 50000mAh Laptop Power Bank 5/9/12/16/19/20V Portable Laptop Battery...
  • Pass Through: Support charge and discharge at the same time. The function is activated by pressing the button for 2 seconds while...
  • Emergency Battery Backup for Outdoors: Size 19.5x15x2.8cm and weight 1.2kg. You can easily put it in your briefcase, backpack or...
  • High Capacity: The 50000mAh(3.7V)/185Wh external battery provides enough juice to power a 65W laptop about 2.5 times and...
  • All in One Quick Charge: Builds in 4 outputs. DC OUT for Laptops: 5V/8.4V/9V/12V - 3A (max); 16V(compatible 16.5V) /...
  • Superior Quality & Safety Guaranteed: Conform to UL1642 and UL2056 Standards. Constructed with Li-Polymer battery cells and built...

Buying Guide – How To Choose the Best Power Bank?

Capacity and Speed

Modern smartphones are getting thinner and if, on the one hand, the design benefits, on the other hand, the battery size is getting smaller and smaller.

At the same time, functions and energy consumption increase and the problem of autonomy often insufficient for the needs of users, especially of those who use it intensively, is not solved.

External batteries represent an effective response, provided that certain factors are taken into account, such as, for example, the capacity expressed in m ah.

If you have a latest-generation smartphone such as an i phone 6, you could choose a very capable power bank with 20,000 m ah that allows you to recharge it even seven times before having to be charged in turn. In this way you can stay calm for days even away from power sources, knowing that you can count on a reliable battery at any time.

Also take into account the charging times of these accessories which are sometimes incredibly long, perhaps too much for your needs.

It is not only important to be able to charge your device several times, but also to do it as quickly as possible. In this case, we must consider the output current from the ports which are expressed in amperes.

Technology

we talked about ports, in the plural, not surprisingly because external batteries with two USB ports and not only one are widespread on the market, ensuring an important advantage and, that is, that of being able to recharge two devices at the same time, ideal if you often go out with more than one smartphone.

Power banks are often technologically very advanced accumulators and the best brand models are those that automatically recognize the optimal energy needed by the two devices connected simultaneously, releasing the adequate one for each.

The advantage is faster and safer charging, both for the devices and for the battery itself.

Without this function, by connecting two smartphones with different powers, the charging times would be longer because the energy would be distributed equally on both ports.

In short, the models equipped with the most modern technology allow a better and safer refill because they adapt better than others to any brand and model that will be refilled with maximum efficiency and speed.

Design and Dimensions

Of the other components that could influence your choice are, of course, the price but also the design and size. The design has its importance from two points of view: firstly, for an aesthetic fact; many companies make particularly attractive models with different colors to improve their appeal.

Secondly, because it is important to have a handy external battery in your hands that does not scratch at the first impact, with a coating that does not leave unsightly fingerprints.

As for the size, the batteries are not the same because they can all go into the glove compartment of the car or bag, but if you want maximum practicality you may prefer those with such a compact design that you can also put them in your pocket.

How to Use an External Battery

Internal Battery Wear

if you consider that these devices lose speed and efficiency over time, it becomes almost impossible to rely on a single recharge to face the day.

Fortunately, there are supports available on the market that can extend the use of your smartphone when no power outlet is available for quick recharging on the fly: these are external batteries.

Compactness and Capacity

they are more or less compact products, depending on the capacity, to be connected via USB cable to your favorite device, thus enjoying an additional battery.

If the first external batteries did not exceed 2,000 m ah, today it is possible to find very large ones, up to 10,000 m ah, which guarantees various recharges, preventing panic situations when the internal battery of the device reaches 1%.

Compatible Devices

before making the purchase you must consider compatible devices. Always look in the product data sheet for the name of your smartphone or tablet to be 100% sure to buy an external battery that is right for you, avoiding wasting money unnecessarily.

The models differ not only in capacity, size, and external appearance but also for the connections that can be USB, mini USB, micro USB up to the most modern USB type-c and the lightning system used by apple.

Recharge One or More Smartphones

Ask Yourself This Question: How Many Devices Do I Always Carry with Me?

Some external batteries are equipped with more than one USB slot, just to meet the needs of those who, for work or for other types of needs, need different smartphones, tablets or even digital cameras.

The ability to connect them all simultaneously to the same external battery is certainly a convenience to consider.

Use

The operation is extremely simple. First of all, make sure to charge the external battery to the maximum. Then leave it overnight connected to your pc or charger if supplied with the product.

To check the battery charge status, there is usually bright le ds. When they are all completely on, you can disconnect it and, without forgetting the connection cables, take it with you. To use it with devices, all you have to do is connect it to them with the appropriate cable.

Never forget to check the status of the external battery before leaving the house, otherwise, you may find yourself with all the devices discharged and without the possibility of recharging them.

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