Deep Cycle vs Starting: Why Architecture Matters

Automotive batteries are designed for a massive burst of current (Starting) followed by immediate recharging. Marine or Leisure batteries are built for slow, consistent discharge over hours (Deep Cycle). Mixing these two architectures leads to plate buckling and internal shorts.

Grid Metallurgy

Starting batteries use thin plates for surface area. Deep cycle units use thick, dense plates to survive the chemical expansion of 80% discharge cycles.