MacBook Pro crashes on battery power

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Not sure if this is related to the Airport crashing issue, but I noticed that my wireless cuts in and out and when I switch to battery the laptop crashes twice within 5 minutes at 70% battery life. I get the gray screen of despair, telling me to shut it down with the power button. I have 10.4.10 and the rest of the details are below.

What's going on here?

Here are the two error logs, any help would be appreciated...

panic(cpu 0 caller 0x001A4A55): Unresolved kernel trap (CPU 0, Type 14=page fault), registers:
CR0: 0x8001003b, CR2: 0xfffffe01, CR3: 0x012fd000, CR4: 0x000006e0
EAX: 0xfffffe01, EBX: 0xfffffe01, ECX: 0x90000000, EDX: 0x59e27b00
CR2: 0xfffffe01, EBP: 0x47f2bbb8, ESI: 0xfffffe01, EDI: 0x465632c8
EFL: 0x00010206, EIP: 0x0035d0ce, CS: 0x00000008, DS: 0x00010010

Backtrace, Format - Frame : Return Address (4 potential args on stack)
0x47f2b9a8 : 0x128d08 (0x3cc0a4 0x47f2b9cc 0x131de5 0x0)
0x47f2b9e8 : 0x1a4a55 (0x3d24b8 0x0 0xe 0x3d1cdc)
0x47f2baf8 : 0x19aeb4 (0x47f2bb10 0x65c0b000 0x0 0x22cf2080)
0x47f2bbb8 : 0x35d151 (0xfffffe01 0x804c 0x47f2bbf8 0x33)
0x47f2bbd8 : 0x35d4b3 (0x59e27b00 0x804c 0x1 0x800)
0x47f2bbf8 : 0xde61b7 (0x59e27b00 0x47f2bcbc 0x6 0x782761b0)
0x47f2bdd8 : 0xde8059 (0x465632c8 0x0 0x0 0x0)
0x47f2bf08 : 0x39b3c3 (0x46563000 0x6c7a500 0x1 0x679043c)
0x47f2bf58 : 0x39a595 (0x6c7a500 0xe03 0x47f2bf78 0x4b2038)
0x47f2bf88 : 0x39a2cb (0x6c992c0 0x40 0x34 0xffffffff)
0x47f2bfc8 : 0x19ad2c (0x6c992c0 0x0 0x10 0x6785700) Backtrace terminated-invalid frame pointer 0x0
Kernel loadable modules in backtrace (with dependencies):
com.apple.driver.AirPort.Atheros(230.8.5)@0xdb4000
dependency: com.apple.iokit.IONetworkingFamily(1.5.1)@0x690000
dependency: com.apple.iokit.IOPCIFamily(2.2)@0x5f2000
dependency: com.apple.iokit.IO80211Family(160.2)@0xa5e000

Kernel version:
Darwin Kernel Version 8.10.1: Wed May 23 16:33:00 PDT 2007; root:xnu-792.22.5~1/RELEASE_I386

Model: MacBookPro3,1, BootROM MBP31.0070.B00, 2 processors, Intel Core 2 Duo, 2.4 GHz, 4 GB
Graphics: GeForce 8600M GT, GeForce 8600M GT, PCIe, 256 MB
Memory Module: BANK 0/DIMM0, 2 GB, DDR2 SDRAM, 667 MHz
Memory Module: BANK 1/DIMM1, 2 GB, DDR2 SDRAM, 667 MHz
AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x87), 1.1.8.5
Bluetooth: Version 1.9.0f8, 2 service, 1 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
PCI Card: pci168c,24, sppci_othernetwork, PCI Slot 5
Serial ATA Device: ST9160823AS, 149.05 GB
Parallel ATA Device: MATSHITADVD-R UJ-85J
USB Device: Built-in iSight, Apple Inc., Up to 480 Mb/sec, 500 mA
USB Device: Bluetooth USB Host Controller, Apple, Inc., Up to 12 Mb/sec, 500 mA
USB Device: Apple Internal Keyboard / Trackpad, Apple Computer, Up to 12 Mb/sec, 500 mA
USB Device: IR Receiver, Apple Computer, Inc., Up to 1.5 Mb/sec, 500 mA
 
Joined
Jul 7, 2007
Messages
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Location
Loughborough, England
Your Mac's Specs
15" MacBook Pro (Early 2008) 2.4GHz 4GB RAM running 10.5.4
That's really strange. You should take your book into the store and talk with one of the geniuses (if they're of any help). It could have been a hardware problem.
 

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