I have a notebook which supports USB-C PD charging. I've been using 3 chargers that I have. The battery that came with the notebook (original) puffed up after about 1 year of usage, but I didn't seem to know why. Then I bought a brand new battery and started using only 1 charger because I left the others somewhere else. The new battery started puffing days after I started using the other USB-C charger.
Since USB-C Power Delivery is a standard for charging, I thought at least the notebook is able to negotiate the right current voltage etc for charging. All the 3 chargers support the right voltage (19v) and power (45w or up).
Is it possible that this second charger is causing this problem? By the way, why do batteries even puff up?