" I strongly advise removing the battery by breaking it off. Bend it back and forth lengthwise gently until the battery breaks away from the PCB."
Is that the agreed upon procedure?
The person who made that statement needs his head bent back and forth till it breaks away from his body...
The best way for a newb to do this is the same way an electronics minded person should do it, pull the mobo out of the case, flip it over and desolder the battery contacts. Especially if you are going to put a new battery back in.