Powerbank is a very useful and handy gadget that allows for portable charging of devices. It is the best solution when we do not have access to a traditional power source and see that our smartphone is at risk of running out of battery.
Each powerbank has a specified :
- capacity, expressed in milliampere-hours (mAh)
- Power, shown in watts (W)
- current intensity measured in amperes (A)
What capacity of powerbank is the best?
This is a very individual matter. On the market, there are small powerbanks with a capacity starting from 5000 mAh that allow you to charge your phone only once. However, for most people, such a small capacity is not sufficient, so they reach for powerbanks with larger capacities of around 10,000 mAh, 20,000 mAh, and much more. Powerbanks with larger capacities increase the number of charges and also allow charging multiple devices simultaneously. However, pay attention to its size and weight. Powerbanks with very high capacity are very efficient but much heavier and more expensive.
Powerbanks can also be divided based on the type of battery contained within.
We are talking about a lithium-ion or lithium-polymer battery. A battery equipped with a lithium-polymer battery is a more expensive solution but has a much larger capacity, and its charging time is shorter. Consider how often you want to use it. Will its use be only occasional, in just crisis situations, or do you often have problems accessing traditional charging, making its frequent use inevitable?
When purchasing the right powerbank, it is very important to check what is the permissible charging power of your device. Today’s powerbanks support fast charging technology – Fast, Quick, Ultra, or Super Charge. By properly selecting the technology used that your smartphone supports, you will ensure the most efficient and safe charging for your device.
Modern powerbanks are protected against overvoltage or overload, which means we know that charging a device with such a battery is completely safe. Also, pay attention to whether the powerbank has additional ports, which allow you to charge several devices simultaneously.
A useful element when choosing is also the type of charge level indicator, which can have LED diodes or a small LCD display, informing about the current charging status. The choice is up to you, but the more accurate one may turn out to be the one with the LCD display.
It is also worth noting whether we are looking for a powerbank that requires connecting the device with a cable, or if we would prefer to charge the device wirelessly. In that case, we must remember to check if our device supports QI wireless charging technology.
Romoss – a popular brand from Hong Kong now available in our store
We have introduced another highly regarded brand, Romoss. The manufacturer offers high-quality equipment. Its range includes capacious and durable powerbanks, making charging even faster and safer. Powerbank Romoss SW20Ps+ 20000 mAh stands out with high capacity and fast two-way charging of 18 W. It has 3 USB ports and a digital LED screen indicating the actual charging status, as well as voltage and current intensity. Thanks to the Fit Charge technology used, the powerbank ensures wide compatibility with other popular devices. 
Powerbank Romoss UR01 10000 mAh is an ideal battery that can be used, among other things, during bike trips thanks to its adjustable, stable holder that can be attached along with the phone to the bike’s handlebars. Its capacity is 10,000 mAh, allowing you to charge your smartphone several times. It is additionally equipped with 2 USB ports, allowing you to save time and quickly charge other devices that need extra power. 
Powerbank Romoss SW30 2680 mAh is a battery equipped with a large capacity and also a number of 5 additional ports – 3 USB-C output ports and 2 USB. The device is completely safe, protecting against overvoltage, overcharging, or any short circuit. Fast charging PD and Q3.0 and SW30 will quickly restore your device to work. 
If you are really very demanding and the above proposals are not sufficient for you, we can offer you powerbank Romoss PEA40 with an enormous capacity of 40000 mAh. With one USB output and two USB-C ports, you can charge 3 devices simultaneously. The battery, thanks to its powerful capacity, can charge devices multiple times. For example, the iPhone 8 can be charged up to 14 times, and the iPhone 11 about 8 times. The powerbank is extremely safe, thanks to a 10-element security system, so you do not have to worry about any risk of damaging your charged devices.
In our store, you will also find powerbanks from other manufacturers such as Baseus, Joyroom, Puro or Tech-Protect. We invite you to our rich and diverse offer of portable batteries, available in our online store HERE.
Remember that the choice of powerbank primarily depends on your individual needs, namely what additional features you want it to be equipped with, starting from capacity, speed, weight, or price.
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