My current charger is broken, but I found another charger which kind of fits, but im suspicious if it will harm my laptops battery in the long run, what commands can I run or what can I look at to see if a new type of charger is harming a laptops battery? as this isnt usb-c or anything really official.
You need to match the voltage and have the amperage equal or higher than the original.
Your laptop will only draw as much amperage as it needs but higher or lower voltage would risk damage.
Until you get into “smart” power interfaces like USB-C… really need more info to actually help.
Bud mentioned “kind of fits” tells me he has a DC power supply with approximately the correct size barrel.