Is mobile power bank popular in Australia?

Popular.

Mobile power bank is also called: mobile power supply, which provides charging function for your mobile phone or digital products. It is very simple and convenient.

When using a mobile phone power bank, do not drop, hit or swing it to avoid causing damage to the power bank.

Power banks have certain requirements for voltage and current. Using a non-original charger to charge the power bank may cause damage to the mobile power supply or cause overloading, which may cause danger.