Premium quality absorbed glass mat technology (AGM) is ideal for the Mazda Miata. The Deka AGM Battery was designed for more than performance; it was designed for the enthusiast. Completely spillproof and leakproof; frequent replacement and high maintenance are over! The AGM technology increases power while improving driver and environmental safety. The key to this technology is the highly porous microfiber separators, which completely absorb and trap the electrolyte. Molded top and side connection terminals provide versatility, increased strength and durability. The Deka AGM Battery provides the most advanced power and value in the industry.