iBall Zooooop (PB-7503C) is an intelligent PowerBank with 7500mAh battery capacity. It looks cool and cute in gold color. The power bank comes with fast charging technology, meaning you can power up your device quickly. It has two USB, one MicroUSB, and one USB Type-C port. The power bank can be charged using either MicroUSB or USB Type C at a time.
As the Type C USB is reversible, thus it can be used for both charging the power bank and charging the phone. It comes with a Type C USB cable having C ports on both ends, making charging devices easy for you, plus enabling to charge three devices simultaneously. Using USB ports you can connect two phones and USB C can charge one more.
iBall Zooooop has a powerful output of 5V/2.4A that intelligently adjusts power output to safely charge each connected device. Even comes with a dedicated button to let you check the battery status.
Performance
The power bank takes more than 4 hours to be fully charged and once ready it can charge 2 to 3 devices. During our test, I first fully charged the power bank and then charge OnePlus 3T and HTC U11 from 0 to 100%. OnePlus 3T has 3400 mAh battery and HTC U11 has 3000 mAh battery. Even after charging these two, the power bank left with few more juice to charge another device. With more than 86% of battery conversion rate, this is one of the small yet useful power banks.