Thanks. I am taking the laptop back to the people that repaired it the first time. Hopefully they can soalve the problem for me. If not, ill try the battery!

Thanks,
-jimmy

Well, hopefully they can fix it without it costing too much.

But it really does sound like a battery issue. In which case a new battery might fix it.

Otherwise it could easily be other things. Like a dead CMOS battery or something that is causing some funky things to happen. (usually a little coin cell battery, and when dead can cause things to occur, although then you should notice that the system time resets and other things like that)

If it is only a year old, usually it is still covered under warranty...and the manufacturer might be able to fix it for you. Although I am not sure about how/if acer has warranties and such, but it would be worth looking into.

I've had similar problems with an Acer Aspire 5116 I bought. It had motherboard failure about 3 months into using it. Certain components on the motherboard just stopped working, which prevented Windows XP from booting (but not Vista, strangely enough), intermittent startup failure, and hibernation problems.
I wouldn't advise buying any new parts for it yet, as if it won't start up with the charger by itself right away, but does so later on, that sounds like internal hardware problems. Why would you be looking for an excuse to purchase a new battery, if you've only had this one for a year? unless you've been using it really hard, it should still be alright for a while longer. Plus Acer's standard warranty coverage is 1 year, extendable to 3 years. you should still have some sort of coverage. Unless the shop you had it repaired at isn't an authorized Acer dealer. In that old Acer i had, i had the hard drive (5400rpm) upgraded to a 7200rpm one, and because it wasn't done at an Acer authorized partner, they voided my warranty.
Definitely i would bring it down to the shop, have them swap out the battery and see if it really is that, or the adapter, and if not, then you've narrowed your problem down to something expensive to repair. If it does turn out to be the battery or charger at fault, thank your lucky stars.

Sounds more like the battery itself than the motherboard. If the battery isnt holding any charge at all, like it sounds like in your case, than the laptop wont turn on untill the battery registers Fully charged. When that happens, the laptop will to switch to AC Power. If your laptop is on AC Power then it will always turn on because it wont be working of the battery(which isnt holding a charge) but it will be working off AC Power directly from the outlet. A little confusing? I know. In short, Order a new battery!

Hope this helps your dillema,
-Murtahg

turning on problem
Support: Laptop Wont Turn On

My laptop v3155au doesnot turn on by its battery I mean when I press power button motherboard turn on but screen doesnot show anything where as when I connet adaptor its turn on in the second time.

-question by chanchal