Battery drains quickly

[Gracebrisbane]

My laptop's battery is about 4 years old and drains quickly when not plugged in and charges to 100 % quickly.if i don't change it, how long will it last me ? Is it normal ?

 

[jsmithepa]

A classic symptom of battery being worn.

 

[1shado1]

How long will it last you (the battery)? It's already shot.