Greetings. I own a Macbook 3,1 with a brand new battery. Purchased Early September last week of August i believe. Throughout university first term i would use the new one 100% health and then swap it for the old one if i needed more power that day. Got along great. Last week i came back from school and pulled the new one putting in the old for a while. Last night i started using the new one again and shut the laptop down at about 30% battery life. Today i power it on to see 0% charge and my health on the battery drop from 99% to 72. it only has 73 cycles on it. Is this normal for these batteries and can i get back to having 99% health? i cant afford a new laptop and i shelled out $129+tax for this battery and although to some thats cheap to a University student who has the School cleaning out my bank account its not. I need this system to work. Any thoughts ideas? Im charging the battery now. Decided i should charge like i always do. Full charge full drain. will that bring it back?