Mazda MIATA MX-5 L4 1.6L 1990-2005 Battery Replaces SLIU1RT 12 Volt, 25 Ah, 320 CCA Absorbed Glass Mat (AGM) Battery. Fits all Mazda Miatas from 1990 through 2005 with correct polarity and battery location in the trunk of the vehicle. USA-Made Sealed, Maintenance-free battery. Fully charged out of the box. Note: If your Miata has its battery located under the hood, this is not the correct replacement battery.