Why is my battery life draining so quickly on my android phone, Samsung Galaxy SGH-1337?

[AC Question]

My phone charges quickly but then loses charge within a few hours.

 

[belodion]

That suggests a failing battery.

 

[pkcable]

How old is the device? Was it exposed to moisture or dropped? Might be time for a new device? Sometimes the battery will just go after so many cycles.