SecretNinja
I am Jim Janard's Cousin's Brother In Law
First time I had to change my HP battery, the casing wouldn't budge at all. I had to use something very similar to this to get it open. Although, the teeth to grab onto the casing were shaped more like a standard screwdriver head, to match the grooves on the casing cover.For tight case backs you want an opener with a vice and positive engagement to prevent slipping and damage to the case back.View attachment 810510