questions about the battery

[why?]

so while i search through the toyota owners manual, does anyone know the cca of the yaris battery?

also, i have a few questions about lightweight batteries. Are there any maintenance issues I would have to worry about, or are they are install and forget, like normal car batteries.

do they need any special attention if you don't use the car a few days in a row?

Basically, I am interested in buying one, but I have zero knowledge of them and don't want to get something and then realize it does not fit my needs in any way.