回答“Switch battery connector on the battery itself (A1321)”FYI - I used a razor blade knife to open a battery a while back, and if you cut the pouch the lithium ion is stored it will short and catch on fire making this green flame that will generate a lot of smoke that I assumed was toxic. It took a long time to vent the house, and I immediately thought of putting it on the aluminum macbook's lid (do not panic, but be careful, have fire extinguisher handy, door unlocked or open, don't do this close to curtains, or anything flammable. Maybe nothing happens, but if the screwdriver cuts all the way through the pouch you must be prepared and assume there will be a flame that might even produce toxic fumes. Although this is dangerous, if you are like me, it is educational to watch youtube videos about lithium ion batteries in general, or just buy another battery and sell that one. No matter how much a battery might cost, does not even come close to comparing to any harm to your health, and well being, as well as those who you live with. So PLEASE BE CAREFUL AND I...