QUOTE(atisha @ Mar 6 2014, 11:33 AM)
Four year only need to replace battery?
Thing is that it happens not very often. So far only incur twice and I notice its when traffic is jammed and car engine is hot that it happens. If car is moving far and engine is hot, I think it's okay. No problem.
Mh. My Citroen I had to change after something like 5 or 6 years, though that was in Europe. In Malaysia I think 1-2 years is more common, if yours is 4 years old...
You could try to start the engine after you parked. Every time. Try to see a pattern, when does it fail, when doesn't it? I could imagine according your description that it fails when the engine bay gets really hot (i.e. not much cooling due to wind...), when it is merely running at the standard operating temperature it's still ok.
In any case, it seems like some old batteries can fail due to heat, and work again when it's cold enough.