What are Power Banks?

As we have technologically progressed as a society, the demand for more products to meet our needs and to complement our existing products have become increasingly prevalent. As we are using more tech in our day to day life, we have developed a dependence on the need to charge these devices; things like our cellular phone, wireless headphones, portable speakers, and many more objects. Due to this necessity, power banks have emerged and have effectively become the portable charger- all your device needs is a USB charging interface. 

Curious about power banks, and would like to know more about them? Continue on reading to find out more.

Definition of a power bank
Power banks may be defined as portable batteries that use, "circuitry to control any power in and power out." They are able to be charged up in a traditional method by means of a USB cable. After the power bank has reached it's full charge capacity, it can then be used to charge battery powered items such as cellular phones, and many other devices that require a USB to charge.

Battery technology within a power bank
High capacity lithium batteries are used within power banks, and as such they are able to hold a charge in order to be able to charge other devices. Lithium-Polymer and Lithium-Ion batteries are most commonly used for power banks but be prepared for other battery technology to be utilized within a power bank in the future. As for many new technological advancements, batteries are in fact quite crucial, as they are used for almost everything- ranging from electric vehicles, to our mobile phones. As a result of these advancements, it is highly likely that there will be spin-offs and additional features within power banks, such as our Hummer Power Bank range.

The two most widely used power bank battery technologies are as follows:

Lithium-ion: Lithium-Ion batteries have a higher energy density as they are able store more electrical charge in a given volume, and are much cheaper to manufacture- do note that they have issues with aging, as they deteriorate quite rapidly over time.

Lithium-polymer: Lithium-polymer power banks do not suffer from ageing to the same extent as Lithium-Ion batteries, which makes them a better choice, albeit more costly and would not be recommended to someone with a smaller budget.

Introducing the Hummer jump starting power bank
There are many power banks on the market, but how many of them can offer you the ability to jump start your car? Eliminate the need for a second car- just plug in the spark-less adapter into the Hummer Jumpstarting Power Bank, and let her rip! With a built-in flashlight, you can always see what you're doing no matter the time of day. Coming in 6,000 mAh, 12,000 mAh, and 15,000 mAh, you can find a perfect fit with any of our power banks.

Compact but powerful, the range of Hummer lithium ion power bank jump starters provide up to 20 jump starts in a single charge. They are capable of jump starting vehicles up to 7.0L in engine size, making them an essential emergency tool for any vehicle owner. Offering increased capacity storage, and doubling up as a power bank, each Hummer jump starter offers practical, convenient day-to-day use and travel.


Martin LaMonica, CNET. "Motion-powered gadget charger back on track."

"A Guide to Understanding Battery Specifications MIT Electric Vehicle Team", web.mit.edu.