This is an old Acer Aspire 2920. I found it for a fiver on facebook marketplace as 'not working'. I was able to get it working again by replacing the dead hard
Jgu Batería de 4 celdas AS16A5K AS16A8K para portátil, para ACER, Aspire, E5 576, E5 576G|Baterías para ordenador portátil| - AliExpress