Some of you PC fanatics may cringe to hear this. But for the past 4 years I have had this Laptop, I kept the battery plugged in 99% of the time. My charge currently says 0%, so I guess its only being kept alive now by being plugged in. Still I could not reasonably unplug it as the battery charge was so small that 20-30min of League of Legends would completely use it up.

Now I am not sure what the best option to do now. Will a 0% battery affect anything? Maybe its finally time to fold and buy a new computer, 4 years was pretty good for me.

Well, when my friend's laptop's battery died, he ordered a "replacement" battery from ebay and it was pretty good. Obviously since its made by some Chinese company, it wont be as great as the official one but he had no other choice since the official ones were discontinued! It just wont last as long as the official ones but its better than nothing

Yeah just buy a new battery. They are quite cheap.

You're saying you had the laptop plugged in 99% of the time? So it sounds like it was basically a desktop. In which case, you should have just taken the battery out. But too late for that, so you can still get a replacement battery, assuming it's a relatively common model. Check eBay or something for a new OEM battery (as in made by manufacturer of the laptop, I don't think I would suggest a third party replacement battery.

Yeah... Hold on.. I'm doing the same thing...

*pops battery out.*

Don't leave the battery plugged in if you're not using it.. But wait... Mine needed charging anyway...

Only downside is the computer will shut off if the cord is accidentally tugged out.
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If you don't let your battery discharge, you will murder it.

Yeah leaving in the battery was my mistake. I had use for it as a laptop mainly so I can move it to my living room with ease, and when I went to my friends house. Still kept it plugged in.

Happened to me. I figured everything was fine as long as I kept it plugged in. I was wrong (to a degree). I was at work and I had gotten a new cell phone. I wanted to get rid of some of the garbage filling up my SD Card so I decided to copy the card from my phone to my portable HDD. Well, the power supply got knocked loose during the process and my HDD corrupted. Had to format it.

I've done this with all of my laptops, and after several years the battery has died on each (though who's to say they wouldn't have died regardless?).

There are random occasions where I will want to move my laptop around quickly, and having the battery out is not useful without being hot-swappable. Though the main issue is keeping the laptop alive in case the power is ripped out, which is much more likely to be done by others who assume that because it is a laptop, it'll have a battery :S

The best way to preserve a Lithium-Ion battery (By far the most common battery used today) is to put them through charge-discharge cycles. Leaving them plugged in all the time will degrade their life (At least, that's from my experience. I've heard some conflicting arguments)