My Solar Panel Has Voltage But No Amps

If it is proceed.

My solar panel has voltage but no amps.

This 12v 5w solar panel was intendeds to charge a lead acid battery that in. It sounds like you have wired the new panels backwards to the rest of the array. It may be that you can never get more than 12 13v. If this doesn t work try doing this again but only this time first reconnect the panel then the battery.

Discussion in general electronics discussion started by jim n mar 7 2013. 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. Calculate the current in amps by dividing power in watts by the voltage in volts.

Simply touch the solar panel leads with the multi meter probes matching their corresponding polarity red to red black to black. 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 panel produces volts but no amps. It was all going so well.

It s also possible that one solar panel in your pv array failed. Zero output is a common problem and in nine out of ten cases it is due to a faulty inverter or charge controller. Measure the solar panel controller output voltage try to get maximum voltage by angling the panels. Mar 7 2013 1.

Connect the ve solar controller output lead to the ve battery terminal. Measure the battery voltage. 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. All of the panel s amps are available but only 12 of the panel s 18 volts.

Scroll to continue with content. Since power watts is volts x amps only 12 18 66 7 of the potential power is harvested. Volts but no amps from a small solar panel reply to thread. Some exceptions may apply based on panel type.