My Solar Panel Has Voltage But No Amps

It may be that you can never get more than 12 13v.

My solar panel has voltage but no amps.

Scroll to continue with content. Zero output is a common problem and in nine out of ten cases it is due to a faulty inverter or charge controller. Calculate the current in amps by dividing power in watts by the voltage in volts. Measure the solar panel controller output voltage try to get maximum voltage by angling the panels.

Try disconnecting both the panel from the regulator and the regulator from the battery then reconnect them battery to regulator first then panel to regulator. Solar panels wired backwards to vs to parallel connections act like a dead short solar panels are just a bunch of giant diodes connect them in the wrong polarity the panels will simply be a large set of diodes connected backwards and take current from the rest of the array. Open circuit voltage can vary depending on your solar panel but the readings we are usually looking for are in the range of 15 to 23v. Hopefully it is less than the solar panel controller output voltage.

If it is proceed. For example if the solar panel is rated at 175 watts and the maximum power voltage vmp is given as 23 6 volts. All of the panel s amps are available but only 12 of the panel s 18 volts. Zero power output no power low voltage issue.

Simply touch the solar panel leads with the multi meter probes matching their corresponding polarity red to red black to black. If this doesn t work try doing this again but only this time first reconnect the panel then the battery. It was all going so well. Volts but no amps from a small solar panel reply to thread.

Since power watts is volts x amps only 12 18 66 7 of the potential power is harvested. It sounds like you have wired the new panels backwards to the rest of the array. Measure the battery voltage. Mar 7 2013 1.

The missing power is not lost to inefficiency of the controller it is never produced. Discussion in general electronics discussion started by jim n mar 7 2013. This 12v 5w solar panel was intendeds to charge a lead acid battery that in. Some exceptions may apply based on panel type.