Bought a new laptop (exhibit) it won't charge when I plug in my charging cable? Is the battery defective or the charger?

Gu
1

Is my charger broken or my laptop broken? Because it had been there for 1 month as an exhibit and it was also connected there for 1 month

Tr

Leaving laptops with built-in batteries hanging on the charging cable for ages is of course never good… It is possible that your battery is defective.