Sorry for the lack of updates and thanks for the feedback guys.... was busy monitoring the situation. However...
This morning, the engine didn't want to turn on first and second crank. I quickly checked the cluster and it showed around 10.5v (after crank). Battery was flat. While I ran around the house to find the jump start cable and reverse my dad's pickup to my boot (circa 5-6 minutes), I gave the car 1 last crank it it struggle but came alive. Once the engine was alive I drove the car to a Century Battery shop near my house. BTW, the car was not driven the whole of y'day.
He checked it using his digital instruments... We noticed when the engine, lights, radio, aircond was on, the insturement he had showes that voltage of the battery was still outside the "ok" zone. Usually it will drop below the ok and then as the alternator charges, the batter will return into the zone. However, it just went up and stopped at the 13.x v and then just stopped.
So 2 possible reasons:
1) alternator is not changing to it's optimum voltage OR
2) battery has reached it's lifespan and though the alternator is is charging, the battery can't absorb the charge...
Funnily enough, the salesman told me to get the alternator checked first. He said no point buying a new battery if the alternator can't charge it correctly. I however thought if the battery is kaput, no point having a healthy alternator. Anyway, it's not everyday a salesman will ignore a fast sale so his experience might be telling him that the alternator might be more likely.
Will search the forum and go see the mech in the next day or 2. Hopefully my car starts when I start it after work!
Questioin : Is the cluster showing alternator voltage OR battery voltge. Confused as it usually show 14.4~14.5ish when the car is started BUT the sales man instrument was showing below. But at the same time, when the car is offed, I still can get a reading from the cluster (which makes me think it is coming from the battery) - will have to google this up more...
