Absorbed Glass Mat (AGM) Technology is an advanced battery design used in Yuasa's Maintenance Free Batteries that eliminates water loss. Once it's filled with acid the battery is permanently sealed - so you'll never need to fill it with water or check the acid level. Long Life Because of its lead calcium design, the AGM battery will hold its specific gravity more than three times longer than conventional lead antimony types. This means much longer periods between charges when the battery is used in a standby mode, like winter storage. And to remain factory-fresh the AGM battery is shipped dry along with its own pack of high-gravity acid that's added at the time of installation. Sealed, Non-spillable Once filled with acid from its special packs, the AGM battery is virtually maintenance free. It's totally sealed and all of the acid is absorbed in the special plates and separators, so there is no need to worry about acid leaks on valuable vehicle parts and accessories.
How To Order Your Battery: 1. Check vehicle's make, year and model and order the corresponding stock number for the battery of your choice. If the year and/or exact model designation of your vehicle is in doubt, see Steps 2 and 3.Please do not use the code(s) or OEM number when ordering battery. 2. Check existing battery or owner's manual for the manufacturers (OEM) number and order the corresponding stock number. 3. Measure the dimensions of existing battery and compare the location of its terminals and exhaust vent to the illustrations shown in the Battery Configuration Chart. Find the battery with the same dimensions and same configurations ( Conf. ) and order the corresponding stock number. Batteries should not be returned without calling or writing to us in advance for instructions. Labor not included.