Another Battery Problem for the Macbook Pro

[spinacci]

Hi,

I had my battery replaced on my Macbook Pro about 9 months ago and now this new battery is suddenly doing weird things. It's saying 0% but I'm still able to use it for the past 30 minutes. The indicator says it's still calculating.

Here is battery info under System Profiler:

Model Information:
Serial Number: Sony-ASMB012-3a4c-9cc2
Manufacturer: Sony
Device name: ASMB012
Pack Lot Code: 0001
PCB Lot Code: 0000
Firmware Version: 0110
Hardware Revision: 0500
Cell Revision: 0303
Charge Information:
Charge remaining (mAh): 0
Fully charged: No
Charging: No
Full charge capacity (mAh): 2343
Health Information:
Cycle count: 66
Condition: Check Battery
Battery Installed: Yes
Amperage (mA): -1213
Voltage (mV): 11021

The Amperage looks really weird. It totally does not make sense. I gotta feeling I need another replacement battery. Anyone know if it could be something else other than the battery?

Thanks

 

[spinacci]

Well, my battery finally lost all it's charge about 1.5 hours after showing 0%. I'm going to let it sit and charge it tomorrow. Will post an update.

 

[Pax]

Possibly it needs calibrating, full discharge and charge like you're doing.

More likely it's failed. Condition: Check Battery = near failure

Talk to whoever sold it to you - it should still be under warranty after 9 months, and 66 cycles is nothing

I don't understand the amperage either. It should + if it's charging.

 

[m85476585]

Amperage is - if it is discharging, + if it's charging. A full charge capacity of 2343 indicates that you probably need a new battery. Once it gets that low, the charge circuitry can't really predict what the battery is doing any more, which can cause unpredictable behavior (randomly shutting off or always showing 0% or stuff like that).

 

[spinacci]

Thanks for the replies.

Yes, it looks like I need a new battery. I've fully charged it (took 3+ hours) and the battery info doesn't look that much different:

Model Information:
Serial Number: Sony-ASMB012-3a4c-9cc2
Manufacturer: Sony
Device name: ASMB012
Pack Lot Code: 0001
PCB Lot Code: 0000
Firmware Version: 0110
Hardware Revision: 0500
Cell Revision: 0303
Charge Information:
Charge remaining (mAh): 3062
Fully charged: Yes
Charging: No
Full charge capacity (mAh): 3102
Health Information:
Cycle count: 67
Condition: Check Battery
Battery Installed: Yes
Amperage (mA): -2072
Voltage (mV): 12144

Anyhoo, thanks for the help. I'll be popping by an Apple store.

 

[The ArchAngel]

Yeah I would definitely get that battery replaced. My original battery on my MBP, just shy of 2 years old, still has a charge capacity of about 4000 mAh after around 325 cycles, so something is definitely not right in your case.

 

[spinacci]

I brought it in and now I have to wait for my replacement. Hopefully, I will get a new one early next week.

Maybe I should try another brand of battery next time. Any suggestions? It's hard to believe that I've gone through two batteries in less than 3 years.

 

[spinacci]

Got my replacement battery today. Hopefully, i will have better luck with this one than the past two batteries.