Do you need leave charger  there even the car warm up for some time?
Can i upgrade my battery but use century brand? If yes which model number?

You all mean this?

Similar but this one looks better than mine coz mine doesn't have the digital indicator, just red to green bars. Mine was a bit cheaper too, about rm30 if not mistaken.

Will plan to buy soon, how long can it last  for this gadget?

If battery is good, 1 week not moving also still okay. Your battery is almost nearing death I'm afraid.

Can i upgrade my battery but use century brand? If yes which model number?

NS60L
Check if there's sufficient space in your battery compartment. It's the same height and width, but around 4CM longer.

If you dont mind oversized, I'm using 55D23L right now on my Axia. Sits outside the battery base.
550 CCAmps 


I do not mine oversized  I  will take out the battery  container  hopefully can


Had to change (mod) the battery terminal due to bigger terminal. But otherwise works very well.

if you dont want to do any mods to the terminal, you can use a smaller one, 46B24L.
https://carbattery.com.my/honda-hrv

If its weak the the plates would have sulphated. Charging it can help a bit but won’t remove the sulphation. You need to use a pulse charger to help remove the lead plates and u can regain ur Battery almost back to new.  I can find cheap pulse car chargers online. It works very well.

How do I clean my battery terminal? In safe way?