Battery not working, laptop works fine when plugged to power source

Has a crake in the back panel as can be seen in pictures

Scratch marks and touch pad area discolorations due to usage

Comes with power adapter

Product Name : Alienware 17 R3

Service Tag : B7PN562

OS : Windows 11

Screen : 17 inch, 4k UHD

CPU Type : Intel(R) Core(TM) 17-6700HQ CPU @ 2.60GHZ , 8 core

CPU Cache

L1 Cache  : 256 KB

L2 Cache : 1024 KB

L3 Cache : 6144 KB

Integrated Graphics : Intel Skylake

Discrete Graphics : Nvidia GTX 970M 3GB

Fixed HDD : HGST HTS721010 (1000 GB)

Second HDD : SAMSUNG SSD CM (128 GB)

M.2 SSD-1 : Empty

M.2 SSD-2 : Empty

AC Adapter Type : 180 W

Battery : 92 Wh (not working) 

System Memory : 20480 MB (DDR4)