My Acer Aspire E 15 E5-573-31G2 is not working in battery power..my laptop turns on only when i charge it.whenever it is disco

[ghm]

My Acer Aspire E 15 E5-573-31G2 is not working in battery power..my laptop turns on only when i charge it.whenever it is disconnected from the adapter my laptop goes power off.how can i fix this problem.i bought my laptop 2 years back.please help me

 

[webworkings]

Sounds like you need a new battery.