Don't get me started on Dell.

I have a dell pc which works great for a 5 year old computer, but my problems with Dell stemmed from their speakers.

When I originally purchased my computer, I bought a 5.1 altec lansing surround sound system from dell.

Had beautiful sound for about 1 year. It then conked out completely.
Graciously, I was still covered by warranty and so I was sent a replacement version (dell mms 5650) which was actually an upgrade (more watts).

Anyway, that had even greater sound quality, and ran well for several years until a few months ago.

I started having tons of issues that I soon found out were experienced by several other people.

Bottom line - I had to unscrew and literally use a dremel tool to cut apart my center speaker console to attempt to fix the problem myself. And alas, I got no where.

They still work, but are faulty, and dell will not acknowledge that they sold a faulty product to numerous customers.

Quite Frustrating and, thus I empathize with anyone else's rancor with Dell products.

Granted, Dell computers are still quite good, but no one can deny that many of their ancillary products are at times faulty. Not to mention their Indian customer service is downright horrid.

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Anyway, Ayame,
As for your laptop issue, getting a new battery is not too bad of an idea, and not the worst thing that can happen.
Hopefully you are still under warranty, in which case you should easily get a replacement for free.

If not, I am sure there are reasonably priced batteries out there on the web.

Also, you might want to search the web for other people who have had similar issues. I'm sure there are others.