Miata Battery 12V31M

Westco 12V31M Sealed AGM Battery fits Miatas back to 1990 - Free Freight

The Westco Miata battery utilizes absorbed glass mat technology for more cranking amps than a standard Miata battery. This New design, terminal location is OEM correct and installation of this Miata battery is easy. Replaces MX-5 Panasonic Battery S46A24L.

• 12V31M Westco Miata Battery
• 12V 31AH 475 CCA*
• Size: L: 7 1/2" W: 5" H: 7"
• Equal to: Group size S46A24L Miata and Model SLIU1RT

BatteryPlex is proud to provide the Westco AGM Miata Battery as the best choice for your Mazda Miata. This battery is a superior quality absorbed glass mat technology (AGM). The Westco is superior to lower grade knock offs. This Westco MK Brand AGM Battery was engineered for performance and for the Miata enthusiast by East Penn. This 12V31M battery is completely spill proof and leak proof.

The AGM Miata Battery technology provides extra power as well as being maintenance free. This battery is especially designed for the Mazda Miata battery tray. The molded top and side connection terminals provide versatility, increased strength and durability. This Westco AGM Miata Battery provides high power and the best value in the industry. Order your new Miata battery now from BatteryPlex.

This Mazda Miata battery 12V31M AGM by Westco made by East Penn is special in both size and design.

Since it's located in the trunk close to the rear quarter panel, it's subject to physical damage in the event of an accident. An exploded battery is not good, so Mazda designed the battery to be "AGM", which is a sealed battery free of liquid unlike the common batteries you'll find at Wal-Mart. It can be flipped any way and won't leak, plus will maintain the OEM design as it was from Mazda.

The Westco Miata battery utilizes absorbed glass mat technology for more cranking amps than a standard Miata battery. This New design, terminal location is OEM correct and installation of this Miata battery is easy.

UPC 83996016538

*UPDATE 2014: The battery industry has done away with in-house testing, the 475 CCA was based on in house room temperature Midtronics tester, but starting this year these ship with independent lab test spec of CCA measured at 0 degrees F for 30 seconds (which is 320 CCA for this battery). Same battery, just a much more demanding test that may or may not reflect your local conditions. How many of us live in 0 degrees? Here in San Diego average day is 70 F and the battery can make 475 CCA here. Regardless, for those who have used and depended on Westco for all their Miatas going back two decades just understand the battery and the CCA it offers hasn't changed, just the testing standards.

12V31M MSDS Sheet

12V31M Miata Battery MSDS