One of the challenges that come from relying on electronics is that at some point they can run out of power. It usually happens at the worst time possible – be it while using a navigation app in an unfamiliar area, during an important call with your boss or your Pokémon Go raid with your buddies. That’s why it can be a very good idea to get yourself a power bank so you can avoid any power shortages or similar issues. These tools are designed to retain a certain amount of power you can use to charge your phone, gadgets or any small device that relies on electricity to work. In this article we will try to figure out which are the top Power Banks on AliExpress. How does a Power Bank work? The Power Bank relies on sophisticated electronic circuits in order to manage its charge and also charge other devices. This is a battery that acquires power from an USB charger, then the energy is stored inside the unit until it will be required to share that energy with another item like your phone.There are different types of power banks – the most common ones are the standard, universal units that are USB based. Then you have wireless power banks that will end up offering your devices energy without any wires. Solar power banks rely on using solar panels to capture energy from the sun, then they keep the energy until you need it. Ways to choose the best Power Bank If you’re looking to buy the best Power Bank, your primary focus has to be its capacity. That’s measured in mAh and the higher the number, the more capacity you get. Small Power Banks can have 3000 mAh, but you can find larger units which cover 10000mAh or more. Since a phone’s battery capacity is around 3000 mAh on average, these Power Banks can offer a complete charge or more without a problem.Also, check the output charge current. Ideally you want the Power Bank to offer energy to other devices as fast as possible. If it’s half an amp for example, then the charging time is long. Fast charging brings in 3 amps, so that’s something to consider.The size and weight of the Power Bank also matter, you want it to be very reliable and portable. The number of ports is crucial too, some Power Banks are capable of charging 2-4 items at once. Others are limited to a single port. So yes, the more ports you get, the better it will be. Conclusion Picking the best Power Bank is going to be tricky and challenging. It’s important to find the right budget and stick to it, and once you do it right the results can be second to none. Take your time, study the possible requirements you might have and the current market offers. Once you do that, you will have no problem finding the right power bank to suit your needs! To help you with this difficult undertaking, we have compiled a list of top Power Banks you can find on AliExpress that offer best value for your money. Best Selling Power Banks KUULAA Power Bank 10000mAh $23.62 $11.81 Buy product Capacity 10000mAh Input Voltage 5V/2.1A Input Interface Micro USB + Type-C Output Voltage 5V/2.1A + 5V/1A Weight 226g / 8oz With over 38k items sold, it makes the KUULAA 10000mAh Power Bank the most sold Power Bank on AliExpress. It has an average of 4.8 stars rating and reviews say the item is exactly as described.This external battery offers a Dual USB Output which can be used to charge two devices at the same time (note that one of the outputs only has 1 amp which will charge slower than the other one that has 2.1 amp), a LED Display which shows the current battery percentage and a nice form factor which makes it smaller than most modern smartphones.You can choose from two colors: black and white and it can also be shipped from different locations. KUULAA Power Bank 20000mAh $45.43 $23.17 Buy product Capacity 20000mAh Input Voltage 5V/3A max Input Interface Micro USB + Type-C + Lightning Output Voltage 3 x 5V/3A + 9V/2A + 12V/1.5A Weight 368g / 13oz The second device is this 20000mAh monster from the same maker as the above. There are 11k+ orders of this device with an average rating of 4.8 stars.Compared with the previous device, it offers double the capacity and also supports Quick Charging.It has 3 Inputs you can use for charging the power bank itself (Lightning, Micro USB, Type-C) and 3 Outputs for charging your devices (2 x USB and 1x Type-C) so you can charge up to 3 devices at the same time.There’s also a digital display that shows you the current battery charge, the input, output and charging mode.Available colors are white, green, blue and black. Baseus 10000mAh Power Bank $24.60 $15.99 Buy product Capacity 10000mAh Input Voltage 5V/2A Input Interface Micro USB Output Voltage 5V/1A + 5V/2.1A Weight 230g / 8oz If you want an alternative to the first device from a well-known brand with a good reputation, check out this Baseus 10000mAh Slim Powerbank.It has an average star rating of 4.8 as well with more than 1.2k orders. Similar to the KUULAA PowerBank it has a digital display that shows you the remaining power. This external battery offers a single Micro USB input for charging the power bank itself and two USB outputs to charge up to two devices at the same time.Baseus stands for quality devices so you can’t go wrong with choosing this one. Wireless Power Banks Baseus 10000mAh Wireless Power Bank $39.22 $25.49 Buy product Capacity 10000mAh Input Voltage 5V/2.A, 9V/2A Input Interface Micro USB + USB Type-C Output Voltage 5V/2.4A + 9V/2A Wireless Charging Output 10W Weight 218g / 7.7oz Moving on to Wireless Portable Chargers, here is the first candidate with 1k+ sold items and an average rating of 4.8* which makes it the bestseller in this category. Except for the wireless charging capabilities it also offers a USB-A (standard USB) and a USB Type-C port for wired charging which means you can charge up to 3 devices at the same time. It also has a screen that indicates current battery charge.Available colors are black, white and black/red. CASEIER 20000mAh Wireless Power Bank $34.98 $20.99 Buy product Capacity 20000mAh Input Voltage 5V/2.1A Input Interface USB Output Voltage 5V/2.0A and more Wireless Charging Output 10W Weight 500g / 17.6oz If you’re looking for a wireless charger with more capacity, you can try this 20000mAh beast (10000mAh version available as well). This power bank comes with three built-in cables for wired charging: for Android devices, Type-C and Lightning for Apple devices – and wireless charging is included as well, obviously. So you can hook up up to 4 devices to charge at the same time.The product has a 4.8* rating and customer reviews are very good overall. USAMS 10000mAh Wireless Power Bank $41.00 $17.63 Buy product Capacity 10000mAh Input Voltage 5V/2A + 9V/2A Input Interface Type C, Micro USB Output Voltage 5V/3A + 9V/2A + 12V/1.5A Wireless Charging Output 10W Weight 220g / 7.7oz This wireless external battery offers a decisive advantage when comparing to the previous products: thanks to suction cups, the power bank can stick to your phone so you don’t have to juggle two devices, which is especially handy when you’re on the move. It offers fast charge and can charge up to 3 devices simultaneously. LED indicator lights display charging and battery status. CASEIER Magnetic Wireless Power Bank $23.32 $13.99 Buy product Capacity 4000mAh Input Voltage 5V/2A Input Interface Micro USB Output Voltage 5V/2A Wireless Charging Output 5W Another wireless power bank that sticks to the phone but this one is using a strong magnet instead of suction cups. Just put a slim magnet card between your phone and the phone case and it’s supposed to stick firmly without having to worry that it will fall off.The charger is pretty small and offers a capacity of 4000mAh which is very good for it’s form factor. A ring on the back of the power bank also makes it easier to hold both devices in one hand and can also be used as a kickstand when putting it down on a table.Available in black and white. Solar Power Banks 80000mAh Solar Power Bank $21.41 $14.99 Buy product Capacity 80000mAh Input Voltage N/A Input Interface USB Type C Output Voltage N/A Wireless Charging Output N/A Moving on to wireless power banks with a special feature: solar power.This particular power bank has been ordered more than 3k times. It’s offering a huge capacity of 80000mAh and the ability to be charged by sunlight.The seller states that solar charging is designed for emergencies and not as primary source of charge as it could take 20+ hours under direct strong light to fully charge which is quite a lot. Still, this is a pretty neat future and can be very helpful for outdoor activities: you can fully charge it at home via an adapter or your computer and then put it in a place with direct sunlight and let it charge slowly. It can reach 25% battery after 5 hours of solar charge which is a lot considering the capacity.It’s got a ton of output interfaces for all your devices and also has 3 strong LED lights to be used as a flashlight. 99000mAh Solar Power Bank $25.70 $17.99 Buy product Capacity 99000mAh Input Voltage 5V/2.1A Input Interface USB Type C, Micro USB Output Voltage N/A Wireless Charging Output N/A For a few more bucks you can get a solar charger with a bigger capacity of 99000mAh from the same producer as the product above.The same warning applies here as well: solar power shouldn’t be the primary source of energy as it can take awfully long to fully charge.This massive power bank has two input interfaces (USB Type C and Micro USB) and four USB outputs.Available in black and red.