Coolpad India — Battery problem

Address:	Bhilwara, Rajasthan, 311001
Website:	[email protected]

I'm using Coolpad Note 3 since last 4 months. Everything was going fine till now but but from last 2-3 days I noticed that the phone is charging very slowley. It's taking almost 3-4 hours to charge completetyl. Ealirer it used to charge fully in 1.5 hours. The battery also gets drained away quicky.
I want to know what is the standard time that Coolpad Note 3 takes to charge completely. And what can be issue with my phone.