BatteryPlex is your Prevailer Battery source. Prevailer Sonnenschein Gel batteries combine the latest advances in battery engineering with proven technology to provide a new level of starting and deep cycle reserve power. These are the Gel batteries of choice for commercial vessels, power boats, RV’s, sailboats and personal mobility. The Prevailer Gel batteries are sealed maintenance free and non spillable. Thank you for purchasing your Prevailer Sonnenschein batteries from BatteryPlex!