Thanks to the Solar Charge Controller calculator, you will be able to size your Solar Charge Controller for your solar panel setup.

You can choose two modes:

- The Easy Mode:
This is if you want a fast response without filling in all details of your panel's array.
We use a simple formula: Nbr Panel * Watt per Panel / Battery Voltage. Then we add 25% for cold temperature safety.

- The Power Mode:
This uses more complex formulas based on the science article "On the temperature dependence of photovoltaic module electrical performance"

We strongly encourage the use of an MPPT and avoiding a PWM (cheaper but less efficient).

This tool is for informational purposes only and is provided "as is". No responsibility will be accepted by us for the use of this tool or for any outcomes that may arise by using the tool.
Switch Mode

Battery Voltage

12

VOLT

Serial
Parallel
Mix
panel
115W
SOLAR CHARGE CONTROLLER SPECS
Solar Charge Controller Calculator

Number of panels 1 panel (1s)
Max. Voltage per panel at low temperature 29.1V

Min. Voltage 29.1V
Min. Current Rating 12A
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www.solarchargecontrollercalculator.com is part of SolarPowerToolbox.com,
a collection of useful solar calculators and tools.

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All our tools are for informational purposes only.
This tool is provided "as is" and no responsibility will be accepted by us for the use of this tool or for any outcomes that may arise by using the tool.