Hello. My situation is this. My friend sold me his old late 2009 Macbook 13". He told me he has never had any issues with charging. I have had it around 5 months now, and over that time the charger has got more and more temperamental. It only charges when it wants to - sometimes it seems putting the plug in different sockets makes a difference, but I doubt it does. I have cleaned out the inside best I can, performed the SMC reset several times, I even have 3 different chargers (one official that came with it that seems to work best, one un official replacement ac, and one very very old macbook pro charger.) I have BatteryExpert app and that says everything is relatively healthy, saying it is on 599 cycles, current charge capacity is 4932 mAh out of a designed 5450. The battery cell voltages are all at 3.73. When I say temperamental, I MEAN IT. It stresses me out a lot. All day I have tried different sockets, chargers, extensions, nothing. While writing this I turned my laptop around to face my better and it randomly starts charging (the indicator lights seem to work fine.) I feel I have tried everything other than taking it to the shop because 1. my nearest apple store is rather far away and 2. I am extremely broke at the moment. Below is my power figures from system info : Model Information: Serial Number: W0003J0CH9X6A Manufacturer: SMP Device Name: bq20z451 Pack Lot Code: 0 PCB Lot Code: 0 Firmware Version: 103 Hardware Revision: 000a Cell Revision: 119 Charge Information: Charge Remaining (mAh): 1570 Fully Charged: No Charging: No Full Charge Capacity (mAh): 4927 Health Information: Cycle Count: 588 Condition: Normal Battery Installed: Yes Amperage (mA): -1175 Voltage (mV): 11043 System Power Settings: AC Power: System Sleep Timer (Minutes): 10 Disk Sleep Timer (Minutes): 10 Display Sleep Timer (Minutes): 10 Wake on AC Change: No Wake on Clamshell Open: Yes Wake on LAN: Yes Display Sleep Uses Dim: Yes PrioritizeNetworkReachabilityOverSleep: 0 Battery Power: System Sleep Timer (Minutes): 138 Disk Sleep Timer (Minutes): 10 Display Sleep Timer (Minutes): 138 Wake on AC Change: No Wake on Clamshell Open: Yes Current Power Source: Yes Display Sleep Uses Dim: Yes Reduce Brightness: Yes Hardware Configuration: UPS Installed: No Sorry about the long post, but I mean it when I say thank you for reading and if you have any thoughts or ideas, that would be great asI am willing to try anything. I consider myself to take care of my electronics, but I have played a few games on this Macbook and it does sometimes get pretty hot.