MBP crashes while watching multimedia

[fjs08]

2 days now while reading an online journal and watching a real estate display, my 2 1/2 yr old MBP, while on battery just crashed. Could not reboot or anything until I plugged it in. WHY????
Once it was plugged in, no problem, but it wouldn't even reboot under battery. Battery was only on about 30 minutes.
I had Safari, iCal, OSX Mail, and Excel open too. maybe just to much on battery?????

Thanks.

Frank

 

[spinnerlys]

Open System Profiler and look under Battery what condition and how much original battery capacity the battery still has. Or download Coconut Battery and read the information there.

 

[fjs08]

Here's what it says:
What am I really looking for here??
The Charge remaining vs the Charge capacity??
Thanks.
Frank

Battery Information:

Model Information:
Manufacturer: SMP
Device name: ASMB012
Pack Lot Code: 0001
PCB Lot Code: 0000
Firmware Version: 0102
Hardware Revision: 0300
Cell Revision: 0200
Charge Information:
Charge remaining (mAh): 5046
Fully charged: No
Charging: Yes
Full charge capacity (mAh): 5308
Health Information:
Cycle count: 104
Condition: Normal
Battery Installed: Yes
Amperage (mA): 438
Voltage (mV): 12601