Most modern smart phones ship with quick charging technologies like Quick Charge or quick Charge over USB-C. Such quick charging can charge your phone at extremely fast speeds. Many different factors, like temperature and additionally actual chemistry of the power bank and smart phone batteries also determine the important charging performance of the power bank. 

Marking capability is that the value written on power banks. Generic power banks are mostly using technique. the whole capability of the power bank is varied from the marking capacity.

Technically, all power banks does not produce output as written on the catalog. there's some loss in efficiency due to AC to DC conversion loss, Heat generation and power loss. thus conversion rate is one among the issue that determines output of power banks. thus if power bank has conversion rate of 80% then its output is 8000mAh if its rated output is 10000mAh. Health of phone battery is extremely strong after you purchase a fresh product. Day by day phone battery health is obtaining reduced naturally and due to some irregular charging, heat and battery quality etc.

This price is written on battery with mAh unit. thus these are the factors that determines that thus known as best branded power banks. as an example, you've got 2500mAh battery and 10000mAh power bank. you will simply calculate four times power bank can turn on your phone. however much its not true. That thus known as properties have an effect on in charging times.