Questions about LG K9/Aristo-2 battery?

[ShadowSJG]

So I needed a new battery for my phone with a lg-k9/aristo-2. I looked on amazon and they say they have aritso-2 battery but its for the k8. I was wondering, would this work still?

 

[Rukbat]

Go by the model number on the battery. If they don't have one, try eBay. If they don't, try LG. But there are too many "almost fit but the contacts don't like up" or "just can't squeeze it in" batteries to guess.