Join Date: Aug 2011
Location: Albuquerque, NM
Ferrari Life Posts: 11,859
SG- In general the FIAMM batteries that come in Ferraris are very good batteries, but their early lives are often enough to cripple them. They are fitted at the factory, then sit waiting for a ship, then sit on the ship, then wait to be picked up at the port, then sit in a dealership and are not driven enough, then the owners do not drive them enough. You get the picture, so the batteries tend to sulphate.
I never give a battery a second chance. If it is weak one time, it gets replaced. An absorbed glass mat battery will be a little expensive, but can take multiple deep discharge cycles without degradation. I have an Interstate MTP-91 in my car, which is just an old fashioned lead acid battery, but they have proven very reliable. If you fit an AGM (Odyssey or Braille) no venting is required. If you fit an Interstate or other lead acid battery, make sure you use the OEM vent tube connected to Interstate's battery vent, part number 7003051. This document may help.
Present: 575M 135171
Past: Dino 246 GT 02984, 365 GTB/4 14009, 308 GTS 25125
Every day I look around, and if nobody is shooting at me, it is a pretty good day.