Macbook Santarosa kernel panic when ends battery charge

Question

I have a serious problem with my Santarosa Macbook (less than one month old).
When I am in battery mode, and the MB ends out the autonomy, it does not go in standby safesleep mode. It simply goes (badly) "off", just like if I would take the battery outside the battery bay.
I have tried to recalibrate the battery, following more the one time the apple's tutorials. No results.
I have also reseted the SMC and the PRAM: the only result is that now, when I arrive at the end of the battery level, the MB does not anymore go "Badly off", it goes in Kernel Panic.
What can I do?
Could it be a software related problem? Or (sigh) is something Hardware related?
Thankyou!
Here follows my last Kernel Panic:
Sat Feb 9 19:00:35 2008
Machine-check capabilities (cpu 0) 0x0000000000000806:
6 error-reporting banks
threshold-based error status present
Machine-check status 0x0000000000000004
machine-check in progress
MCA error-reporting registers:
IA32MC0STATUS(0x401): 0xf200004000000800 valid
MCA error code : 0x0800
Model specific error code: 0x0000
Other information : 0x00000040
Threshold-based status : Undefined
Status bits:
Processor context corrupt
Error enabled
Uncorrected error
Error overflow
IA32MC1STATUS(0x405): 0x0000000000000000 invalid
IA32MC2STATUS(0x409): 0x0000000000000000 invalid
IA32MC3STATUS(0x40d): 0x0020000000000000 invalid
IA32MC4STATUS(0x411): 0x0000000000000011 invalid
IA32MC5STATUS(0x415): 0xf200141014040400 valid
MCA error code : 0x0400
Model specific error code: 0x1404
Other information : 0x00001410
Threshold-based status : Undefined
Status bits:
Processor context corrupt
Error enabled
Uncorrected error
Error overflow
Machine-check capabilities (cpu 1) 0x0000000000000806:
6 error-reporting banks
threshold-based error status present
Machine-check status 0x0000000000000004
machine-check in progress
MCApaeicrr(rc-u cAl2MCler00xSTATUS(0x401): 0x001A756F): Machine Check at 0x00164ff00004020, 00hr0a valid
MCA error code : 0x0800
Model specific error code: 0x000330a5d
, trap Ot:erx info12, tioerr 0 @ 0, r:g 0xst0r0:0C000
x}Threshold-based status8 010Undbf CR2in: 0dV
Status0bits:0800 a , CRPr:ces or0xontext corru010
6000, R4:r0xror en000bl6d
0
EA : 0xUncorrected er03r
0f a50, EErrX:0xr overflow
010000 0, AC32XM 0x_STATUS(0x3dbcfe080000000 00EDX0 in ax-l0d000
00
E P: IxA32MC2STATUS(03dbcfd50, 4BP0 ): xx0000000000000000 3dinvfd78lidEzSI: 0x IA300_00C00, EDI3_S ATUS(0xx40d): 03xf7a50
EFL: 0x00010206, EIP: 0x002001040f0
000 invalid
IA32MC4STATUS(0x411): 0x0000000000000011 invalid
IA32MC5STATUS(0x415): 0xf2001410300c0400 valid
MCA error code : 0x0400
Model specific error code: 0x300c
Other information : 0x00001410
Threshold-based status : Undefined
Status bits:
Processor context corrupt
Error enabled
Uncorrected error
Error overflow
Backtrace, Format - Frame : Return Address (4 potential args on stack)
0x4e7e28 : 0x12b0e1 (0x455670 0x4e7e5c 0x133238 0x0)
0x4e7e78 : 0x1a756f (0x45e71c 0x164df2 0x335a5d0 0x12)
0x4e7f58 : 0x19f593 (0x4e7f70 0x0 0x0 0x0)
0x3dbcfd78 : 0x169528 (0x30f7a50 0x1000000 0x0 0x3dbcfe78)
0x3dbcfe98 : 0x16a1c1 (0x1a00000 0x0 0x0 0x0)
0x3dbcfed8 : 0x181db4 (0x30f7a50 0x1000000 0x0 0x1a00000)
0x3dbcff38 : 0x371c1d (0x30f7a50 0x1000000 0x0 0xa00000)
0x3dbcff78 : 0x3da847 (0x32bac20 0x32ead40 0x32ead84 0x2f85400)
0x3dbcffc8 : 0x19ea34 (0x306c4c0 0x0 0x1a10b5 0x335a5d0)
No mapping exists for frame pointer
Backtrace terminated-invalid frame pointer 0xbfffe8d8
BSD process name corresponding to current thread: launchd
Mac OS version:
9B18
Kernel version:
Darwin Kernel Version 9.1.0: Wed Oct 31 17:46:22 PDT 2007; root:xnu-1228.0.2~1/RELEASE_I386
System model name: MacBook3,1 (Mac-F22788C8)

Answer 1

There are a few long discussion regarding this issue...
http://discussions.apple.com/thread.jspa?threadID=1348407&tstart=45
http://discussions.apple.com/thread.jspa?threadID=1219413&tstart=0
http://discussions.apple.com/thread.jspa?threadID=1335088&tstart=0
Some users got a new battery from apple. I've sent mine back and asked for refund(because with a new battery from apple I still have the same problem)...