Good place to buy a car battery?

Seem to need a new one. The last one (GS) was bought from a local garage for convenience and took a long time bench charging after purchase to reach full charge, suggesting to me it had been self discharging on the shelf for a long time.

This might explain why its only lasted a couple of years (and/or or my cheapo Chinese Charger, or topping up with filtered rainwater, killed it)

I’m thinking maybe a dedicated battery outlet might have higher turnover giving longer life. I know of a couple of places in Tainan.

Any experience or suggestions?

No idea about Tainan, if that’s where you want to look. In Taipei there’s an auto supply store in the Neihu development area (near Costco):