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.
For USB-C: Tiny little side note here, there are some cheap small-size adapters that overheat. Some adapters thotle down, but some rare ones just blink power on and off, which is bad for lithium batteries.
Search a good brand, preferably reviewed, and GAN-type. Spend a bit more than the cheapest. Check if it has the right protocol (probably Power Delivery at some voltage) to make sure it charges at a normal speed.
For a DC charger like OP asked. Match polarity, match Voltage. And at least match the current/watage to make sure you can charge in a reasonable amount of time
And, anybody who has played in RaspberryPi 5 land will probably know: there’s different voltages delivered in USB-C and each has its own amperage limit in a given charger, so the wattage rating of the charger doesn’t tell the whole story. Like a PC internal supply you need to ask: what’s the amperage capacity at 5V, 9V, 15V, 20V ? A “90W” USB-C charger might only deliver 100mA at 5V and 9V with most of the “juice” delivered at 15 and/or 20V - and what voltages is your laptop configured to be able to consume for battery charging?
It usually works out simply enough for most consumers, but not always…
+1 for GaN adapters - they pack a punch in a small package. I’ve replaced my original adapter for my Thinkpad as well as for my cell phone with a Belkin unit a while back. It takes much less space in my backpack.