If you take damage and survive, you will get the attack boost. Otherwise, if you're not affected, or you evade it, it will not give you the boost.Ok, this might sound a little stupid, but does the item Cell Battery absorb damage from electric attacks? Or do I need to survive the attack to get the Attack boost? I assume it absorbs, but I don't want to work too hard to get it just to find out it doesn't.
It works if you take damage I believe.
BTW it's Sp.Atk
Actually, it's attack.
http://www.serebii.net/itemdex/cellbattery.shtml