Why need to charge it? isnt that is the use of alternator to charge the battery when you use your car?

Yup i know, just wondering coz he says batt still good after 5 years. so unless he rarely use the car, its abit impossible to reach 5 years.

my current batt is >2 years old iinm still no sign of dying soon. Century i think lol

Avoid maintenance free battery

sometime its not about battery but car itself.
battery last for 3 yrs in my latio, but less than 2yrs in swift.
same brand .. Incoe MF battery

Now I am abit concerned about my Axia, manual gear.
The car itself is already 1.5 yrs old. But already done 44,000km on its original battery. (I run alot due to nature of my work)
And I start the engine per day very frequently.

Recently bought a battery voltage meter from Mr Diy which plug into the cigratte lighter. So far with engine off it's showing 12.7 volts. Which is good. Once in a while goes down to 12.5V

But my question is, should I replace it soon with such high mileage? Engine still starts. I am closely monitoring my voltage meter.
And sometimes i switch on the aircond fan with the engine off just to blow some wind on my face while waiting, rather than running the engine.

Btw the car came with Panasonic battery. Non maintenance free Which i prefer. But its not a NS40 battery. It's rated in DIN.

This is more like how matching the alternator and the battery. How frequent you drive.