I have use my Acer Aspire 4830TG for 1 years, and this week, I got a warning at the battery icon, it say "There is a problem with your battery, so your computer might shut down suddenly". I don't get it , when my laptop fully charge, I discharge my laptop and when the battery low, I charge back my laptop. What should I do, and if there no other solution, what are the price for 4830tg battery replacement? I think my laptop battery have reach it life cycle?

And for your information it happen 3 days ago when I play DIRT SHOWDOWN game , at that time I did not charge my laptop battery and the battery indicator display 80% power left and also I disable my power save button to use NVIDIA Graphic instead of Intel Graphic, after about 3 minute I play the game my laptop suddenly turn off. After that I try power on my laptop but my laptop won't turn on and the power LED blink and that time I consider that my laptop battery are at low level, so I charge the laptop and turn on the laptop and THEN I get that problem. Please help with my problem and what are the solution?

So I need to sent it back to warranty for battery? I also facing buzzing sound. It's been for a while.. >,< but am too busy and need lappy.. huhuh

Been using my 4830TG for a year as well,n i just encounter the "Plugged in,not charging" error.Tried a different AC adapter but the error is still there so i'm assuming the battery  to be the culprit.The laptop is all working fine and dandy as long as the adapter is plugged in but the bloody thing is not charging at all lol.Anyone knows what wrong?

Try installing the software BatteryBar (Google it) then see what the battery wear percentage is. I've only got the same laptop for about half a year old and it's already at about 9.5%.

Has anyone with this laptop tried replacing the built-in battery due to worn batteries using their warranty for free yet? Or if not using warranty, how much does it take to replace it?

Just sent it to the service center today,just like i expected,the battery was the culprit.Was quoted RM300+ for the new battery.

Wow, one year and the battery is already having such issues? If it's within one year, isn't your warranty still valid?

& how long did they say they will take to repair it? 10-14 working days as usual?

I'm asking all this to prepare myself for all the hassles when my laptop comes to your stage later on. Sigh.

That's the problem with having built-in batteries.. Can't remove it while the battery is fully charged and we're on AC.
My laptop is almost at 9 months old but I've managed to maintain the battery wear level to <10% by recalibrating it about every month.

You guys should try it too on your new battery. Save yourselves some trouble.

mine is 43.07%.. lol