charging time for android phone

[AC Question]

I was staying with someone and charged my android phone and it was only a short time. When I charge it at home it takes 4x's as long. What is causing this?

 

[Ry]

I was staying with someone and charged my android phone and it was only a short time. When I charge it at home it takes 4x's as long. What is causing this?

What phone do you have? What charger were you using?