I have a MacBook Pro (15-inch, Mid 2010, MacBookPro6,2) which does not switch to battery power when the power adaptor is removed. It simply goes off. However the battery is reported as 100% charged. I can only use the MacBook with the power adaptor plugged in.
When plugging in, the LED shows orange for a few seconds, then switches to green. When I remove the power adaptor for more than a few seconds, the clock resets to Jan, 1 on the next reboot.
The battery is two or three years old but it is not the original one. It is possible that it has degraded over time but even then I would expect it to deliver power for at least a few minutes, so I think the problem is something different. Also the battery worked as usual a few days before.
I tried a SMC reset (shift-ctrl-option-power) which did not fix the problem. Is there a way to find out whether the SMC reset was in fact executed?
Anything else I can do?
Here is the battery info:
Battery Information: Model Information: Serial Number: W01107AW7D3BA Manufacturer: LMP Device Name: A1321 Pack Lot Code: 3230 PCB Lot Code: 30db Firmware Version: ddae Hardware Version: dac2 Cell Revision: 2b39 Charge Information: Charge Remaining (mAh): 6996 Fully Charged: Yes Charging: No Full Charge Capacity (mAh): 7033 Health Information: Cycle Count: 163 Condition: Normal Battery Installed: Yes Amperage (mA): 0 Voltage (mV): 12508