My Solar Panel Has Voltage But No Amps

Connect the ve solar controller output lead to the ve battery terminal.

My solar panel has voltage but no amps.

Measure the battery voltage. Solar panel produces volts but no amps. Hopefully it is less than the solar panel controller output 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.

Calculate the current in amps by dividing power in watts by the voltage in volts. For example if the solar panel is rated at 175 watts and the maximum power voltage vmp is given as 23 6 volts. If this doesn t work try doing this again but only this time first reconnect the panel then the battery. Volts but no amps from a small solar panel reply to thread.

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. Discussion in general electronics discussion started by jim n mar 7 2013. Zero power output no power low voltage issue.

It s also possible that one solar panel in your pv array failed. It was all going so well. Mar 7 2013 1. It sounds like you have wired the new panels backwards to 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. All of the panel s amps are available but only 12 of the panel s 18 volts. Some exceptions may apply based on panel type. The missing power is not lost to inefficiency of the controller it is never produced.

Simply touch the solar panel leads with the multi meter probes matching their corresponding polarity red to red black to black. It may be that you can never get more than 12 13v. This 12v 5w solar panel was intendeds to charge a lead acid battery that in. Measure the solar panel controller output voltage try to get maximum voltage by angling the panels.