QUOTE(IamAHuman @ Jan 16 2019, 10:48 PM)
I heard some say it’ll damage the car’s electrical system. Don’t mind if I ask what are your 3 cars?
no. AGM just a technology how the battery holds the power. like I said, as long as the power requirement are met by the battery according to the manufacturer, its okay alreadyI have MB W245 and W176, both on century marathoner. W245 already on its 2nd battery after 5 years of ownership. normal battery only can last around 2years max for my case. Meanwhile my MB W246 are still on Varta AGM which they previous owner replace it after 4/5 years I guess because there is a date stamped on the battery stated 2017.
both MB W245 and W176 I think could only last another year max. then maybe I will change back to Varta, but not AGM series. maybe EFB only. I don't have the luxury to use AGM batteries lah…

for the MB W246, I will wait the AGM to finish, then move to EFB. depends on the budget lah that time haha...