Disadvantages and advantages of power bank.

Advantages of power bank

1.the main benefit of power bank is that they are great for charging a phone on the go,or when there is no electricity available

2.aside from that most power bank come in high capacity which makes them handy for charging your phone multiple time without recharging it and when the battery of the power bank does drain they can be easily charge through laptop , car charger and wall socket whichever is more convenience

Disadvantage of having a power bank

1.power bank come with their own share of disadvantage as well . many of the power bank available is either bulky or expensive . part from that , the don't required to be charge when their battery drain and if their capacity is low they drain faster 

2.the also impact the battery of some phone in some instance