Something in VW chat caught my eye and interest as far as batteries. I'm now curious to know what kind of batteries people have and how long they've lasted.

For example:

I've had an Optima red top for 6.5 years now, and have only had to charge it once because I was away for about 3-4 weeks.

I understand many of the TR peoples change cars like underpants, but I know there's some that can add meaningful info.