Macbook battery from Amazon

You can get a new battery for about $30 on eBay. I've had good luck with them.

Black Batteries http://shop.ebay.com/i.html?_nkw=macbook+black+battery&_sacat=0&LH_BIN=1&_sop=12 &_dmpt=Laptop_Batteries&_odkw=macbook+white+battery&_osacat=0&_trksid=p3286.c0.m 270.l1313

White Batteries http://shop.ebay.com/i.html?_nkw=macbook+white+battery&_sacat=0&LH_BIN=1&_sop=12 &_dmpt=Laptop_Batteries&_odkw=macbook+black+battery&_osacat=0&_trksid=p3286.c0.m 270.l1313

@frederic1943 -- I just bought a replacement battery from one of the eBay vendors. Things seem to be fine....except that my macbook simply doesn't recognize that there is a battery. Thus, even though the battery is there and (apparently) charged, the macbook immediately goes to sleep if I detach the power cord/magsafe adapter. Any experience like that with any aftermarket batteries? Suggestions for a re-set or re-calibrate?

Thanks!

Go to the Apple in the upper left corner and select About This Mac, then click on More Info(and then System Report in10.7), then select Power from the left hand column of the System Profiler. Copy and paste the Battery Information back here.

Here it is, including the other power info. Definitely showing NO battery whatsoever! Thing is, I can now, after around 5-6 hours of charging of the new battery, unplug the power adapter without the computer going to sleep immediately. So, perhaps the new battery is building up power to the point of at least working. I'm thinking the solution may be to charge overnight and try it all on battery power in the morning. I could run the new battery down at that point and see if the serves as a proper calibration. But, so far, it's not looking very promising.

Battery Information:

Charge Information:

Charge Remaining (mAh): 0

Fully Charged: No

Charging: No

Full Charge Capacity (mAh): 0

Health Information:

Cycle Count: 0

Battery Installed: No

Amperage (mA): 0

Voltage (mV): 0

System Power Settings:

AC Power:

System Sleep Timer (Minutes): 180

Disk Sleep Timer (Minutes): 10

Display Sleep Timer (Minutes): 10

Automatic Restart on Power Loss: No

Wake on AC Change: No

Wake on Clamshell Open: Yes

Wake on LAN: No

Current Power Source: Yes

Display Sleep Uses Dim: No

PrioritizeNetworkReachabilityOverSleep: 0

RestartAfterKernelPanic: 157680000

Battery Power:

System Sleep Timer (Minutes): 15

Disk Sleep Timer (Minutes): 10

Display Sleep Timer (Minutes): 10

Wake on AC Change: No

Wake on Clamshell Open: Yes

Display Sleep Uses Dim: Yes

Reduce Brightness: No

RestartAfterKernelPanic: 157680000

It looks like the MacBook isn't recognizing that there is a battery installed. When you press the button on the battery do any lights come on?

You might try resetting the SMC http://support.apple.com/kb/HT3964

Oddly, the battery lights work and run up to 4 out of the 5 lit. I tried the SMC as well - but good suggestion. I'll see how it goes tomorrow, once the new battery will have charged for a good while.

I'm not sure if this'll help, but I also had to replace a battery with one form Amazon, and although it does recognize the battery and will charge of it, the battery status has been 'service battery' for the past month since i bought it.

(And also, the battery life is next to terrible (about 2 hours Web brousing), but what do you except for $36?)

Cereskit -- That actually does help a bit - at least knowing that about the range of experiences with aftermarket batteries. If this eBay battery would at least work, I wouldn't have a problem with it showing "no batteries available" (or the "service battery" status you are getting). However, it seems that the system just automatically goes to sleep with this aftermarket battery....meaning it is completely useless. Think I'm going back to the eBay seller on this one....and will hope that a replacement might work the second time around!

When you put your old battery back in does the MacBook recognize that a battery is installed? If not it's probably not a battery problem but a MacBook problem. You can try cleaning the contacts with a Q-Tip and rubbing alcohol. If that doesn't help it may be an internal problem that you'll need to have checked by an Apple Store.