What Is Group 31 Battery Size?
Group 31 batteries are heavy-duty, commercial-grade power sources standardized at ~13×6.75×9.5 inches (LxWxH). Designed for high-capacity storage (75–125Ah), they’re used in RVs, marine systems, solar arrays, and industrial equipment. Available in lead-acid (AGM/flooded) and lithium-ion variants, Group 31 prioritizes deep-cycle resilience with 800–4,000+ cycles (lithium) and 500–1,200 cycles (AGM). Terminal types include SAE posts, studs, … Read more