How to Choose a Portable Charger?

With this article, our site continues the cycle of useful materials, the purpose of which will be to facilitate the selection of any product from the thousands of options offered on the market. Agree, the choice of a specific model of any type of device always takes a lot of time that can be spent usefully. In today’s article we will talk about choosing a portable charger (PowerBank).

power bank1

Every day, a modern person takes with him a huge number of devices – a smartphone, tablet, laptop, camera … All these devices constantly need charging, and access to an outlet is not always available – especially if you went on a hike. It is for such cases that special portable chargers were invented, in fact, huge batteries with various outputs for charging different devices. In recent years, their popularity has increased several times.

In the next section, we’ll cover the main technical specifications of PowerBank chargers, and then present to your attention 10 of the best models that can be found and purchased in our catalog.


The weight and endurance of the device directly depends on the material from which the battery is made. The most popular materials are:

  • Plastic is a lightweight and budget material that is unstable to external influences. It is worth buying a plastic PowerBank when the risk of its potential damage is minimal.
  • Metal is a durable material, resistant to external damage, but much more expensive than plastic.
  • Sometimes glass or textiles are used in the production of battery cases, but this is done, rather, for an interesting appearance.

Capacity, mAh

The main characteristic of any battery is its capacity. The larger it is, the more energy the charger can transfer to a smartphone, tablet or other device.

To choose a charger for any device, you need to know the capacity of its battery. The capacity of the portable charger should be twice as large. It is advisable to add some more margin to the resulting figure, because the charger will not be able to fully transfer its entire charge.

For one or two full charges of the smartphone, a capacity of about 4000-5000 mAh is enough. To charge the tablet, you need a larger battery – for example, with a capacity of 10,000-15,000 mAh. A laptop will require even more – to charge it it is better to buy a charger with a capacity of up to 20,000 mAh.

Maximum output current, A

The maximum output current of the battery affects the charging speed of various devices. It is worth remembering: the device receiving energy must maintain the set value of the current strength, otherwise its battery will simply overheat and may even explode. Fortunately, modern electronics are usually smart enough to automatically lower the amperage when needed.

To charge the smartphone, there will be enough current of 1 A (the flagships support faster charging), to charge the tablet – 1.5-2 A, to charge the laptop – 2 A and more. It all depends on the specific model – before buying a battery, be sure to find out what amperage your devices support.

Ability to charge two devices at the same time

PowerBank with support for simultaneous charging of two devices will come in handy for those who often use smartphones and tablets or smartphones and laptops – you do not have to alternate charging these devices.

Laptop charging capability

Only powerful and expensive chargers have such an opportunity. Make sure you have a dedicated adapter for your laptop before purchasing.

Card reader

The built-in card reader comes in handy if you often charge the battery itself from a PC and use memory cards – an extra card reader will not take up another USB port.


The presence of a flashlight in a mobile battery allows you to use it without fear of draining your smartphone battery. Also, flashlights in portable chargers are usually brighter than LED flashes in phones.

Solar battery

The presence of a solar battery on the body of the device allows you to charge it from sunlight – useful if you are going to spend a lot of time outdoors in good weather or just like to save money. The speed of such charging directly depends on the cloudiness and even in ideal conditions is not at all high.

Number of USB ports

Most often, portable batteries are equipped with one or two USB ports, so they can charge one or two devices. Models with three or more ports are very rare, in most cases they are not needed.

Availability of a universal output connector and adapters

To charge a wide variety of different mobile devices, portable batteries are equipped with a universal connector, and many adapters are put in the box. Before buying, you should make sure that the kit contains the items you need.

Fans of Apple devices should take a closer look at portable batteries that have a Lightning input connector. They can be charged with a wall charger from an iPhone.

!!! Note that wireless portable chargers have recently hit the market. To recharge, for example, a smartphone, just put it on top.

Power connection type

You can always charge the battery itself from a stationary PC via USB, but a mains charger is often included in the kit. Various adapters for mini USB or micro USB ports may also be present.

Waterproof case

The presence of a case protected from moisture is useful if you plan to use the battery on a hike or in nature in general – if it gets caught in the rain, it will not become a useless piece of plastic.

Quick Charge

This is a fast charging function that allows you to charge your gadget in the shortest possible time.

Selection Tips

Before purchasing, carefully study the characteristics of the device that you will recharge with PoweBank. This is important in order not to accidentally disable it.

Before buying, carefully study the reviews on PoweBank, they can tell you what pros and cons each particular model has.

Even unknown brands are engaged in the release of portable chargers. However, it is better not to buy their equipment: the percentage of defects is high, in terms of reliability, such products are much inferior to proven brands, including Xiaomi, ASUS, AUKEY, Baseus, Finepower, Nobby. All their products are certified and meet quality standards.