Engineering Tool

Battery Sizing Calculator

Select your stabilizer model and target anchor runtime. We'll show you the system size you need and the kit that fits.

0 kW (minimal)4 kW (typical)8 kW (heavy)
2 hrs6 hrs12 hrs
← Select your stabilizer to see sizing results

Quick Reference: Typical System Sizes

Stabilizer 4 hr anchor 6 hr anchor 8 hr anchor Kit Match
SK6 / DG312 kWh18 kWh24 kWhSALT START™
SK9 / DG314 kWh21 kWh28 kWhSALT SURGE™
SK1620 kWh30 kWh40 kWhSALT SURGE™
SK26 / DG626 kWh39 kWh52 kWhSALT FLEET™
SK35 / SK4034 kWh51 kWh68 kWhSALT FLEET™

Assumes 1.5 kW house load. Actual sizing varies by vessel — load analysis included with all installs.

Want a Verified Sizing?

The calculator gives you a ballpark. A real load analysis gives you certainty. We'll come to your vessel and measure actual consumption before we spec anything.

Request Vessel Load Analysis