Gadget Power Bank 2019 – 2020

Gadget Power Bank

This is a selection of the best gadget power banks to charge any electronic device during a trip. Smatphone, eReaders or any accessory that can be charged by USB port. There are available from 1,000mAH to 85,000mAH. 

To provide power to your travel devices, up to 89800 mah

9000 mAh

Waterproof Charger- with Emergency LED Flashlight for Outdoor Activities

travel gadget: Water/Shock/Dust Proof
Travel gadget-power bank 8900mah
89800 mAh

Car Jump Starter Pack Booster Charger Battery Power Bank

Car Jump Starter Pack Booster Charger Battery Power Bank

Car Jump Starter Pack Booster Charger Battery Power Bank

Vovomay - Travel Gadget
Travel gadget-power bank 8900mah
5000 mAh

Power Bank LCD LED 4 USB Battery Charger for Mobile Phone

Power Bank LCD LED 4 USB Battery Charger for Mobile Phone

Power Bank LCD LED 4 USB Battery Charger for Mobile Phone

Power Bank - Travel Gadget
Travel gadget-power bank 8900mah
50000 mAh

Power Bank LCD LED 4 USB Battery Charger for Mobile Phone

Power Bank LCD LED 4 USB Battery Charger for Mobile Phone

Power Bank LCD LED 4 USB Battery Charger for Mobile Phone

Travel Gadget - Power Bank
Travel gadget-power bank 8900mah
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Tips (7) to choose a Power Bank 2019-2020

Price

We can find external batteries of great quality from US $ 20 to no more than 50-60 euros. Cheaper batteries usually have a capacity of 10,000 mAh, enough to charge an iPhone up to 3 times. While the most powerful batteries have up to 85,000 mAh load.

Capacity

All the models in our list have a minimum capacity of 10,000 mAh to be able to charge the mobile phone at least 3 times. The most powerful batteries, + – 26,000 mAh allow to charge our mobile at least 8 times

Weight and size

Again, the weight and size are linked to the load capacity of the external battery. lighter batteries can weigh less than 10 oz (250 grams) with very small dimensions that make us not realize that we are carrying them. The most powerful external batteries usually have a weight of around 20 Oz (500 grams)

Security 

Verify that the models have the latest advances in security:

  • Protection against overheating
  • Overcurrent protection
  • Overvoltage protection
  • Protection against short circuits

Departure ports

Most of the best power bank have at least 2 output ports to be able to charge two devices at the same time. Some chargers have up to 5 output ports between USB, lightning, micro USB …

Ports of entry

The vast majority of chargers have a single input port to charge the external battery from the electric current. However, there are chargers that have 2 input ports reducing by half the charging time of the external battery if you have 2 cables.

Warranty time

All models have at least 1 year warranty by the manufacturer. The vast majority have 18 months and some of them have a lifetime guarantee!

30000 mAh

Power Bank LCD LED 4 USB Battery Charger for Mobile Phone

Power Bank LCD LED 4 USB Battery Charger for Mobile Phone

Solar Chargers 30,000mAh, Dualpow Portable Dual USB Solar Battery Charger

Solar Battery Charger External Battery Pack Phone Charger Power Bank with Flashlight for Smartphones Tablet Camera (Baby Blue)
Travel gadget-power bank 8900mah
26800 mAh

Zendure A8PD 26800mAh - 5-Port Quick Charge External Battery for iPhone X, Nintendo Switch, Samsung S9 and More

Travel gadget Power Bank
Travel gadget-power bank 8900mah
20000 mAh

Car Jump Starter Pack Booster Charger Battery Power Bank

Car Jump Starter Pack Booster Charger Battery Power Bank

Zendure X6 USB-C Hub Portable Charger 20000mAh, 45W PD & QC 3.0 Power Bank with LED Display, 5 USB Ports

External Battery Pack for MacBook, iPhone, Galaxy, Smartwatches
Travel gadget-power bank 8900mah
30000 mAh

Power Bank LCD LED 4 USB Battery Charger for Mobile Phone

Power Bank LCD LED 4 USB Battery Charger for Mobile Phone

Solar Chargers 30,000mAh, Dualpow Portable Dual USB Solar Battery Charger

Dual USB output charging ports and Charge Fast: allow you to charge 2 digital devices simultaneously, also, it charges your phone very fast with the 2.1 usb port
Travel gadget-power bank 8900mah
20100 mAh

Power Bank LCD LED 4 USB Battery Charger for Mobile Phone

Power Bank LCD LED 4 USB Battery Charger for Mobile Phone

AC Outlet Power Bank RAVPower 20100mAh External Battery Pack 65W

Built in 2-Prong AC Plug Travel Charger Compatible for MacBook, Surface Pro, Dell XPS 13, iPhone Xs, Galaxy S9, Note 8
Travel gadget-power bank 8900mah
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Check if an external battery is suitable for air travel

The regulation specifies that the nominal capacity must be less than 100 Wh (Watt-Hour). That is to say: any power bank with a capacity lower than 27000 mAh (at 3.7V) is apt to be carried on an airplane as carry-on luggage.  – See the TSA regulations

How is the nominal capacity calculated in Wh?

Normally, the power bank specification sheet usually indicates its nominal capacity in Ah and Wh but, if you can not find it, you can calculate it for yourself:

As you already know, a power bank consists of a set of lithium-ion batteries of a certain capacity and a voltage between 3.6 Volts 3.8 Volts.

To know the nominal capacity in Watt-hour (Wh) you must multiply the total capacity of the power bank indicated in mAh by this voltage and divide by 1000:

Rated capacity (Wh) = (mAh x V) / 1000

For example: An external battery with a capacity of 20000 mAh and a voltage of 3.7V, the nominal capacity will be:

Rated capacity = (20000 mAh x 3.7V) / 1000 = 74 Wh <100 Wh


Gadget Power Bank 2019 - 2020
Gadget Power Bank 2019 – 2020

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