No low battery warning..

Low oil will not cause the issue you are describing..

Sounds like the battery is dying. A low battery and/or bad stator or bad regulator will cause the battery to get low on voltage. Although enough to start the bike and idle, it will loose power to the coils under heavy throttle.

Engine stalls cold or RPM fluctuates at idle up and down or dies near idle.

This problem is commonly caused by a dirty automatic idle speed control valve and throttle valve but always run a OBD2 fault code as well as the cleaning procedure. Buy a can of throttle valve cleaner (do not use carburetor spray cleaner!) from NAPA or Carquest (made by CRC chemicals) and spray it into the air intake while the engine is running, use up about 1/2 the can, engine will try to stall hold the speed up, shut it down and let it soak for 30 minutes, restart and blow out the remaining fluid, shut it down and disconnect the negative battery cable for 5 Min's to reset the base idle control. If the above cleaning doesn't cure your issues you need to have the computer controlled automatic idle speed control system diagnosed and repaired by a dealer or electronic engine control repair shop.

If your computer is shutting off randomly, there could be a multitude of issues. Most of the issues are hardware related.

1. If you're able to use your computer for a little while, and it randomly shuts off, it could be one of a few things.

a. Overheating processor: You may need to replace your processor, or clean out the inside of the computer.
b. Fans not working: Your fans could be disabled, and keeping the computer from receiving cooling which can overheat the processor as well as other vital components.
c. Dying battery: The battery in your laptop may be going bad, and could need replacement. Does it charge completely, or does it only fill up partially after a long period of charging? If it's the latter, you will need to replace it.
d. Dying hard drive: While this one isn't as likely, and usually doesn't cause the computer to shut off instantly, it's still something to consider.

2: If your computer shuts off before the desktop even loads, it's most likely a hardware problem.

a. Dying battery: Again, your battery may be dying, try removing it and keeping the laptop plugged in when you turn it on.
b. Broken hard drive: Your hard drive may be broken, try finding an external hard drive with Linux or another operating system installed on it, and go into the BIOS when your computer first starts up. Find the "Boot devices" option, and tell it to make the primary boot device the external device with the operating system installed on it. If the computer starts up fine after that, you may need to re-install your old operating system, or replace your hard drive.

It probably is overheating, and is shutting itself down, to avoid PERMANENT damage.

Turn the computer off.
Disconnect the AC power.
Remove the battery.
Purchase a can of compressed-air, and give the computer a "blow-job" -- shooting compressed air everywhere into the vents, to remove a layer of dust, that has been acting as insulation, causing your computer to overheat.

Try plugging in the USB connection again. If that doesn't work, unplug it and then press and hold the on button for ten seconds.

You just want to refresh battery from the BIOS. There problem will be solve

BATTERY MUST READ 12 VOLTS AND 11 VOLTS ON A DRAW OR WITH A LOAD ON IT
IF YOUR ALTERNATOR STOPS WORKING THEN THE BATTERY WILL GO DEAD AS THE ENGINE HAS TO HAVE ELECTRIC TO RUN ( WHEN YOU CAR REACHES 8 VOLTS THE COMPUTER WILL SHUT OFF EVERYTHING TO SAVE IT'S SELF FROM BURNING UP SO CHECK YOUR ALTERNATOR AND RECHARGE THE BATTERY

Problem cause:

Do diagnose your Laptop try to change your battery or adapter if you have some backup device

Do a search on the site http://wiki.xda-developers.com/ Try the Keywords "Bricked"