I have 2 broken macbook batteries. One is the original macbook battery and one is a replacement. BOTH broke the exact same way, just thought I'd warn some of you guys.. here's what seems to happen.. The first battery was in fairness 3 years old (original). Never had any problems at all but, it had about 70% charge and was left on sleep for about 5 weeks and obviously the battery ran out. However, once I turned the macbook on again, with power supply connected, the battery condition was 'replace now' or 'not charging'. Second battery was a replacement, only about 4 months old. Had nearly full charge, was put on sleep and about 2 weeks later, it was dead and 'not charging' was the battery status, before 'replace now' was shown. Has anyone else experienced this? Also are these batteries repairable? Would be nice having spares that worked.