It ain't battery problem. My calc. has dual power mode, a battery and solar, so it's as good as a permanent drainless battery. To be sure, I did check that and that ain't the problem. The display is showing jagged pixels, most likely the display is gone which make it as good as dead.
Luckily, was able to catch a friend this late at night who agreed to lend me his in morning. Will pick it up on my way to college.