They have the longest life and the least cost per amp-hour of any of the choices. However the other side of the coin is, in order to enjoy these advantages, they require regular maintenance in the form of watering, equalizing charges and keeping the top and terminals clean. Length: 10.30" (262mm); Width: 7.13" (181mm) Height 11.91in (303mm).
1.5" (38mm) - Bolt 5/16". For more specifications please see spec sheet attached to listing. These batteries are Flooded Lead Acid.