ExoCalc

Plan off-grid power faster with practical calculators for batteries, solar arrays, inverters, DC cable voltage drop and fuse checks.

EXOTRONIC Solar Calculator is a practical off-grid electrical calculator suite for caravan, 4WD, battery and solar installations.

Use it to make faster first-pass sizing decisions before final system design, procurement or installation. Each calculator is built around common low-voltage DC workflows used in mobile and off-grid power systems.

Features include:

• Battery runtime and capacity calculator
• Solar array size calculator
• Inverter size calculator with battery-side current estimate
• DC voltage drop calculator
• Solar panel cable size calculator
• Starter battery to DC-DC charger cable calculator
• Battery short-circuit current calculator
• Current-carrying capacity reference guidance

The app helps estimate battery amp-hours and watt-hours, required solar panel wattage, inverter size, voltage drop, standard cable sizes, and fuse interrupt-rating context.