Mac battery not working

Question

Hey guys, for some reason my battery isn&#x27;t working. It doesn&#x27;t say to replace and it has a very low cycle count... Here are the statsBattery Information:  Model Information:  Manufacturer:    SMP  Device Name:    ASMB016  Pack Lot Code:    0000  PCB Lot Code:    0000  Firmware Version:    0110  Hardware Revision:    0200  Cell Revision:    0102  Charge Information:  Charge Remaining (mAh):    0  Fully Charged:    No  Charging:    Yes  Full Charge Capacity (mAh):    5043  Health Information:  Cycle Count:    60  Condition:    Normal  Battery Installed:    Yes  Amperage (mA):    94  Voltage (mV):    9587System Power Settings:  AC Power:  System Sleep Timer (Minutes):    60  Disk Sleep Timer (Minutes):    0  Display Sleep Timer (Minutes):    10  Automatic Restart on Power Loss:    No  Wake on AC Change:    No  Wake on Clamshell Open:    Yes  Wake on LAN:    Yes  Current Power Source:    Yes  Display Sleep Uses Dim:    Yes  Battery Power:  System Sleep Timer (Minutes):    5  Disk Sleep Timer (Minutes):    10  Display Sleep Timer (Minutes):    2  Wake on AC Change:    No  Wake on Clamshell Open:    Yes  Display Sleep Uses Dim:    Yes  Reduce Brightness:    YesHardware Configuration:  UPS Installed:    NoAC Charger Information:  Connected:    Yes  ID:    0x0100  Wattage (W):    60  Revision:    0x0000  Family:    0x00ba  Serial Number:    0x009c044d  Charging:    YesAny tip?Thanks in advance!

Bimmer 7 Series · Answer

Try doing a SMC RESET - but i doubt that would help.From seeing your cycle count, unless its a fairly new battery, i think you&#x27;ve left your Macbook plugged in for weeks at a time without using it under it&#x27;s own power.  I could be wrong, but your cycle count is quite low for a Macbook.In any event, try doing the smc reset and see if it does anything for you.  Otherwise, it&#x27;s time to buy a new battery.Good luck

Patricia Henwood · Answer

It may not be of much help to you, but I recently upgraded the original Toshiba 250GB HD in my late 2008 unibody MacBook with a 750GB Western Digital Scorpio Black HD.  After replacing the HD I noticed that when I checked the System Report under Power it showed that the battery had completed 166 cycles and the battery condition was showing as &#x27;Service Battery&#x27;.To the best of my memory I had never seen the Service Battery message before.  In fact, my battery was replaced by Apple about twelve months ago (I believe) as it was one of the faulty batch of batteries that developed &#x27;battery bulge&#x27; .  If my memory is correct my Apple Care 3 year contract had already expired by then (I purchased my MacBook in November 2008) but the battery was replaced free of charge because the Serial Number of my MacBook corresponded to those with the defective Sony battery.Since then I have been careful to follow the advice from Apple regarding maintaining the battery in optimum condition.  I was therefore surprised to see that, after 166 cycles, my battery only retained 72% of its original capacity.  I downloaded CoconutBattery app. to check this.Yesterday I followed the advice of others on these forums and re-set my system management controller (SMC) and also re-calibrated the battery.I don&#x27;t know which of these worked but my battery is now showing &#x27;Normal&#x27; and, according to CoconutBattery app it now has 79% charge.Perhaps it might be worthwhile for you to do as Bimmer 7 series suggests and also re-calibrate your battery - it can&#x27;t hurt!CheersTricia