Yes sadly I did try that when it came out a few years back and it had no effect. I double checked the link you gave to the one I have and they're the same version so that's a shame. They should have recalled the entire laptop.
It's definitely the battery - just frustrating after the years of putting up with the touch strip.
I was hoping for a temporary fix, I need this laptop to last until mid-august and the wireless going on and off is getting out of hand.