My battery is taking off so slowly – doesn’t last much longer… Now I thought to myself: No problem, let’s see what’s inside and what a part costs. So built in: Duralast Gold from the beginning of 2007 (actually no age) with 135 (!!!) Ah in a housing that actually only gives between 80 and 90. Does anyone know if the American amps are different than in Europe? Even the most expensive Varta don’t have 90 amps hours in size…