laptop surge
Can an old surge protector kill a laptop battery?

I’ve been using an old surge protector for my laptop for about a year and my battery just suddenly died and won’t work without the charger plugged in. I’m not sure how old the surge protector is, but I would say that it’s probably more than 5 years old. I’m going to replace it, but I was just wondering if the battery could have died because the surge protector was old/ineffective.

nah
if the surge protector was in some way damaged (probably not), it could have hurt your charger but I dont’ think it would have done any harm to your laptop

the problem is probably with your battery…
do you leave it plugged in excessively? that can do it…

Laptop Power Supply and Surge Protection