I had an old 1985 Yamaha Motorbike and that battery (a Yuasa) lasted 18 years. I couldn't believe it. When I googled it, some lasted up to 25 years.the battery must be like 25 years old now
My 2001 Z3 battery was just recently replaced for the 1st time. That battery is in the trunk down in a well and the vent tube goes through a hole in the bottom.
Nope and nope. The worst part is when I have a dream like SMT and I try to fall back asleep into that dream, but it never works.