How to choose a power bank?

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• The history of the emergence of ROM
• Main features of Power Bank
• How to choose a Power Bank for different gadgets? 5 recommendations for buying
• How to properly operate Power Bank?
• How to choose a Power Bank for your phone?
• How to Choose a Power Bank for Laptop?
• How to choose a Power Bank for your tablet?
• How to choose a Power Bank for a speaker?
• Power Banks Manufacturer's Choice
• TOP Power Banks rating from the Ukrainian brand Gelius
• Why you shouldn't try to collect Power Bank with your own hands?

Nowadays, when you need to charge many different devices, a gadget like a power bank is an indispensable thing. An external battery is useful not only for long trips or vacations, but also for any area where there is no outlet. With the advent of a large number of smart electronic devices, so has the need to recharge everyone. After all, it is no longer only a mobile phone that has to be charged, now the list is becoming more extensive: headphones, smart watches, speakers, tablets, laptops.

Given the insufficient battery life of most devices, they can be discharged at the most inopportune moment. Powerbank - is a portable charging gadget that is designed to charge any compatible equipment. Basically, this device is used with a USB cable, which manufacturers take into account in the package. There is also wireless charging technology for smartphones that support this technology. Power Bank is lightweight and compact, which users really like.

The first mobile phones had batteries with a capacity of up to 1000 mAh, which made it possible to use the devices for weeks or even months. Smartphones of those years can be safely called eternal, since playing standard games for a long time, phones could only be discharged by one level, which was displayed on the screen. At that time, it was difficult to imagine the need for a power bank, because the phones could be in active mode for about a month or even more.

In 2004, a portable external charger for a video camera was developed for a scientific Antarctic expedition. Due to the extremely cold air temperatures on the cold continent of Antarctica, simple batteries could be discharged in just a few minutes. And for such aggressive conditions, a device was developed that can charge equipment. And the size of the battery itself, with its compactness and lightness, did not burden climbers.

When the first iPhone came out, its battery lasted for a much shorter time, even then the manufacturers came up with a smartphone case that could serve as a charger. For manufacturers, this served as the idea to create a device that will charge a discharged phone in any convenient place, as a result of which a power bank has become an indispensable thing in the life of modern people.

Manufacturers want to expand the functionality and capabilities of the power bank, but the basic need always remains the same - to increase the battery capacity, to reduce the charging time of the phone and the power bank itself.

Functions provided in different models of power banks:

1. Capacity. The number of charges of your smartphone or laptop depends on this indicator in the device. If the power bank is designed for 10,000 mAh, a modern phone can be charged several times. If it is necessary to calculate the number of charges, then 30% must be subtracted from 10000 mAh, which is the real capacity of all portable chargers. This is because the remaining mAh is dissipated when the voltage is converted.
2. Connectors, their number, current strength.
   There can be several connectors, each of them has its own indicators of the current strength, which affects the charging time. Standard indicators are 1-2.3A. The more amperes at the output, the faster the device charges. The number of USB ports gives an idea of ​​how many devices can be charged at the same time using a power bank. If it has two ports, then the current strength in them is distributed to 1A and 2.1A.
3. Fast charging (Quick Charge).Allows you to charge devices that support this charging technology as quickly as possible.
4. Wireless charging.
5. Display, charge indicator, flashlight.

The batteries of the power banks themselves are of two types:

1. Lithium-ion (Li-ion).
2. Lithium polymer (Li-pol).

The lithium-ion type of battery is now more common and is used in almost all smartphones and tablets. These batteries charge quickly enough, they have a high energy density and a large capacity.

Recommendation # 1. Determine how this device will be used

In order to understand the purpose of buying a power bank, it is enough to decide where it will most often be used and in what conditions:

1. For everyday use - urban format. This option is definitely designed for an external design that attracts attention with its uniqueness. 3,000 to 10,000 mAh may be sufficient.
2. For trips around the city and beyond. In this format, you should pay attention to the increased battery capacity of the power bank - 10,000 mAh.
3. For long journeys and hikes. In this case, you need to consider power banks made of durable material, with a high level of protection against moisture and dust, which have a high charge - from 10,000 to 50,000 mAh.

Recommendation # 2. Identify devices that can be charged

Before buying a power bank, the user immediately determines which devices will be charged as needed. Modern Power Bank with the help of various cables and adapters is compatible with any digital devices (IPhone and Android smartphones, cameras, camcorders, tablets, laptops, headphones, smart watches and other gadgets). The parameters for the charge requirements are almost the same).

The most important factor is the current strength of 1A or 2A. If the device is rated for 1A, then the 2A connector will do its job quickly. But if, on the contrary, a tablet with a current strength of 2A is connected to 1A, then it will take a lot of time to charge.

The Power Bank can be charged from a laptop, but not all models are designed to recharge such powerful devices. The Ukrainian brand Gelius offers an excellent solution for those who are looking for just such a gadget - Powerbank for Krazi KZ-PB001 Air MaQ 20000mAh Silver laptop. This power bank provides: fast charging of any devices, as well as a beautiful design.

Recommendation # 3. Select the required capacity

How to figure out how many full charges of the device will be obtained according to certain criteria of ROM capacity?

It is enough to calculate by multiplying the battery capacity of any devices by a factor of 1.5 and dividing the power bank battery capacity by the resulting figure.

Example. The battery in the smartphone is 2300 mAh, ROM is 10000 mAh. 10000mAh: (2300 * 1.5) = 2.89.

Result: Powerbank with a capacity of 100% is designed for 2.89 charging the device.

Recommendation # 4. The main criteria for choosing the appearance of Power Bank

• A power bank made of metal will allow you to keep the battery working for as long as possible.
• Devices can be of any color and shape - square, rectangular, flat, elongated.
• Dimensions and weight of the device. The higher the battery capacity, the heavier the device itself.
• LED backlight.

Recommendation # 5. Determine the price of a power bank

Prices for portable chargers range from the most affordable - 100 hryvnia to high - 5000-7000 hryvnia. Batteries from world brands can cost several times more in comparison with budget prices, which are not inferior in quality to offers on the market. The material, appearance and functionality, as well as the offered level of battery capacity of the power bank, affect the prices from the manufacturers. It is not necessary to overpay for the fame of a world brand, because you can buy a quality item, while saving a significant amount.

Favorable cost and quality assurance for the power bank can be obtained on the website of the official Ukrainian brand Gelius.

Smartphone charging from ROM:

1. After purchase, it is better to immediately charge the Power Bank to 100%.
2. Connect the device you want to charge using the cable included with your smartphone or other device.
3. After connecting, the power bank should immediately start charging the device. If this does not happen, then you should press the on / off button one or more times, or hold it down for two to five seconds (this depends on the purchased ROM model).
4. If the charge indicator lights up, this is a signal that the device has started charging. When the charge is full, the power bank will turn off automatically.
5. The charge indicator on the Power Bank will decrease as the device itself is gradually discharged.

To charge the power bank, you need:

1. Connect it to the charger that you use to recharge your mobile phone.
2. After the connection has been made, the charge indicator on the power bank will start blinking, which will provide information about the process and the charge level. Each indicator will light up in stages. The ROM will be fully charged when each indicator lights up.
3. After a full charge, the Power Bank will be disconnected from the power supply automatically, in order to protect it from overheating, as well as to increase the life of its battery..

In order for the Power Bank to function for a long period of time, manufacturers recommend observing the following operating rules:

1. Do not leave the power bank in too cold places with low air temperatures. These conditions damage the batteries and actively reduce the capacity of the devices.
2. When charging a portable device, use serviceable and high-quality network cables.
3. If the power bank is not used for a long time, then make sure that the charge level is 80%.

You can charge the Power Bank using:

• From a laptop or computer, which is most often done by users. Charging time takes longer than with wall charger.
• A 2A mains charger will quickly charge the power bank. The adapter is not included in the ROM configuration.
• Charging with a solar battery. There are models of power banks that are charged by sunlight, which is a highly ecological product.
• Using a mobile device that has a battery function.

It is important to avoid overheating of the battery when charging the gadget, as well as if the power bank and mains charger are exposed to sunlight. When buying an adapter individually for a power bank, it is recommended to choose no more than 2A. Too much current can damage the battery, eventually destroying it in a short period of time.

1. Capacity. Before buying, it is worth considering the capacity to calculate the required number of charges. Smartphones come with different batteries, so the number of charges from a power bank can vary significantly.
2. Dimensions. If you choose a power bank with minimal dimensions and look only at the compactness when buying, then the capacity will be very small and this will not be enough for demanding phones.
3. Communication. How to choose a device for iPhone or different Android models? It is important that the connectors in the mobile battery and the ROM are the same. Standard cables may not always work because the connectors can be different: Micro-USB or USB Type-C.
4. Power parameters. The current strength must not be less than that declared by the manufacturer. At low rates, the charge will be slower than it could. Higher rates will not be able to harm modern phones, because they have developed protection against overvoltage.

It is difficult to find such a powerful power bank that could fully provide the ability to charge a laptop. This is due to the fact that ROMs were originally created not for laptops, but for smaller devices.

The main characteristics of the Power Bank, which are necessary to charge the laptop:

1. Connectors. Recent developments by engineers have led to varieties of USB ports. They are: USB 2.0, Type-A Plug, as well as USB 2.0, Type-B Jack. The latest standards are USB 3.1, a universal Type-C connector, designed for a current of 100 watts. In addition to the presence of such a port, a cable that supports this standard is required. You can charge a laptop using ROM not only through the Type-C connector. Almost all poverbanks have their own connectors for connecting to a laptop. And most often, manufacturers complete various adapters to connect any device.
2. Voltage and current strength. An output voltage of 5 V and an output current of 1 A are standard designations for modern devices, since most power banks are designed to charge low-power equipment (smartphones, headphones, smart watches). To charge a laptop, a voltage of 12 V is required. In modern laptops, the voltage requirement is 15-20 V, therefore, the power banks intended for such work are equipped with distributors for 16-19 V. The current must be high from 3 A.
3. Capacity. External laptop batteries must have a capacity above 10000mAh.
4. Taking into account the parameters of versatility, ports and characteristics will make it possible to understand whether an external charger will cope with charging a laptop.

The Gelius online store presents a powerful Gelius Titanium external battery for laptops and macbooks. Devices with a high capacity of 30000 mAh have an impressive output power - 100W, which allows you to charge 4 gadgets or 2 laptops at the same time.

1. Capacity. The tablet is more demanding in this regard than the mobile phone. Therefore, to recharge it, it is better to consider power banks with a calculation of more than 10,000 mAh.
2. Strength of tension. To charge such a device quickly, the current strength must be from 1.5 A.
3. Connectors. Most tablets use the same ports as smartphones - micro-USB / Type-C. If we consider Apple technology, then the standard of the connector is different, since in this product the Lightening connector.

For a portable speaker, a power bank with a lower capacity is suitable when comparing the requirements of a laptop. Therefore, to charge such a device, a capacity of up to 10,000 mAh is sufficient. The voltage standard in most portable devices is 5 V with an output of up to 1.5 A.

Some modern speakers are also equipped with a built-in battery, which allows the device itself to be used as a ROM.

With the increasing demand for portable chargers, the number of manufacturers around the world that are popular and have proven their quality is growing. Many well-known manufacturers of power banks are represented in Ukraine, among which the Ukrainian brand Gelius has proven itself well.

The brand offers stylish, attractive design of devices, with the ability to apply any logo to them. The manufacturer takes into account the financial budget of users - for affordable money, it provides excellent quality, justified by constant work and improvement of all its products.

Power Bank Krazi KZ-PB001 AirMaQ 20000mAh Silver

This stylish device will perfectly cope with charging demanding devices with the expectation of fast charging. In this model, protection against short circuits was taken into account, as well as against high voltage and overheating of the device.

Gelius Pro Velcro GP-PBW1120 10000mAh Black

Attractive gadget thought out to the smallest detail, has wireless charging, stunning appearance and fast power. The device provides multi-level protection and operational safety.

Wireless ROM will be especially useful in situations where you need power for several devices at once.

Gelius Pro Edge GP-PB20-013 20000mAh Sky Blue

The optional rechargeable battery has a super high capacity and is suitable for all users. The power bank is designed to simultaneously power multiple devices if necessary, suitable for travel, business trips and trips during the day.

Gelius Pro CoolMini 2PD GP-PB10-211 9600mAh Bird of peace Blue

The next portable charger on our list has an attractive design and a wide range of features. The gadget can be purchased in different colors, moreover, in the Gelius online store you can order this model with Ukrainian symbols.

Power Bank CoolMini 2 will definitely become a reliable assistant for every day anywhere in the world.

Gelius Pro RDM GP-PB20263 20000mAh Black

The Gelius Pro RDM external battery provides the user with constant communication on various trips, in the absence of electricity and on vacation. The model has high compatibility with any smartphones, tablets and other devices.

The high capacity of 20,000 mAh allows you to keep your mobile phone charged for the longest possible time.

Gelius Lightstone GP-PB300 30000mAh Green

One of the most powerful devices in the arsenal of the Gelius brand is the stylish Power Bank - Gelius Lightstone with a high capacity of 30,000 mAh. The portable gadget is designed to maintain the power of any devices for a long time in any convenient place. Simultaneous charging can connect up to three devices. The presence of fast charging is also provided by the manufacturer.

On the case there is a practical indicator, several convenient USB ports and a flashlight that can be activated by long pressing the side button.

Many users are interested in self-repairing or assembling a power bank with their own hands, without having experience in such skill and technical education. This is not recommended because the consequences can be critical.

Important details are not taken into account, because the permissible degree of protection is not used and such an action could even lead to an explosion of the device in the hands. If your device has ceased to function for some reason, contact the diagnostic service center, where a qualified specialist will provide advice and services for repairing the device.