Solar Panel Selector & Output Calculator

Compare solar panels by daily output, roof weight and real-world use. This calculator is designed for 4WDs, caravans, campers and touring setups where weight, roof space, shade and charging performance all matter.

Selected Panel

Panel details

Wattage—
Weight—
Technology—
Shade Resistance —
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Note: The Sunman eArc 85W 9V panel requires a minimum of two panels when used on a 12V system. This provides sufficient input voltage for most solar regulators. The calculator has automatically adjusted the quantity to a minimum of 2 panels, although additional panels can be used when wired in accordance with the manufacturer's instructions.
Series/Parallel Wiring Notice: When wiring multiple solar panels, ensure the number of panels in each series string is matched. Uneven panel quantities between strings can cause system performance issues and may result in equipment damage. Always follow the manufacturer's wiring specifications and regulator requirements.

Recommended Battery

Minimum—
Recommended—

Battery suggestions are a general guide only and depend on your appliances, travel style, inverter use and how long you camp off-grid.

Panel Weight

Per panel—
Total selected setup—

Panel weight only. Does not include wiring, mounting hardware, brackets, adhesive or installation accessories.

Estimated Daily Output

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—
—

This is an estimate only. Solar output changes with sun angle, heat, panel temperature, shade, wiring, regulator efficiency, dust and weather.

What can this realistically run with enough power storage?

Comfortably supports
Usually supports
May need more solar

Battery options to pair with this solar setup

These are general battery options to help match the solar recommendation above. Your ideal setup still depends on your appliances, inverter use and how long you camp off-grid.

Recommended Match Exotronic 100Ah slimline lithium battery

100Ah Slimline Lithium

A compact option for smaller solar setups and lighter touring loads.

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Recommended Match Exotronic 200Ah slimline lithium battery

200Ah Slimline Lithium

A strong all-round touring option for fridges, lights, devices and longer stays.

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Recommended Match Exotronic 300Ah lithium battery

300Ah Lithium

Best suited to larger solar arrays, heavier loads or longer off-grid trips.

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Still not sure about your set up?

Got questions? Hit us up, we're 4WDers too and happy to help.

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& Let us know how we can help with your set - up