PV Gap

Miriam Said:

How do I charge 48 dcv from 24 volt solar panel?

We Answered:

Read the manual for your controller, which I assume is a charge controller. The better ones use a switch mode regulator so they operate over a wide range of input voltages and output voltages.

The manual should tell you what range of output voltages it will handle, and what the optimum range is. If not, contact the manufacturer.

You may have to connect the batteries in series-parallel for 24 volts. Why are they connected in series?

.

Theodore Said:

Trying to understand which voltage is better for solar panels. 12, 24, or 48 volt systems. which is better?

We Answered:

Depends on your power level overall. For low power systems, lower voltage is fine, and is cheaper. For higher power systems, the wire gets to be too heavy and the currents too high, so switching to a higher voltage system is best.

.