Surrette Battery Company has been manufacturing the off-grid, deep-cycle lead acid batteries for over 25 years. The Rolls Battery lines offer reliable, durable, high-quality batteries in a wide range of sizes and capacities. With unique, modular dual-container construction, re-circulatory formation, robotic welding, and the strongest warranty and widest range of products, the Rolls 5000 series line-up is ideal for renewable energy applications. And now, the convenience of 6- and 12-volt, as well as 2-volt rolls, maintenance-free AGM models, offer a solution for any application.