My Solar Panel Has Voltage But Low Amps

100 watts 17 5 volt vmp 5 7 amps imp.

My solar panel has voltage but low amps.

Some exceptions may apply based on panel type. Measure the battery voltage. It may be that you can never get more than 12 13v. Measure the solar panel controller output voltage try to get maximum voltage by angling the panels.

Another reason is that the panel with 0 amps can t handle any load. And running 50 feet one way run at 4 amps on 10 awg the voltage drop would be. The battery does not have the ability to power the light bulb but will show some voltage at no load. If it is proceed.

Is it also possible that while rewiring your folding panel to a series connection you mixed up the and leads for the set. Some prefabricated interconnect cable sets are wired in a non standard way and matching colors of the mc4 connectors will cause the panel to be wired in backwards. It is the same thing as if you had a battery that shows voltage but when you hook it up to a light bulb the battery drops to zero volts. Solar panel produces volts but no amps.

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. Short the panel and measure your isc in noon time sun use a 10 amp dmm or use a dc current clamp type meter. Simply touch the solar panel leads with the multi meter probes matching their corresponding polarity red to red black to black. Calculate the current in amps by dividing power in watts by the voltage in volts.

Connect the ve solar controller output lead to the ve battery terminal. Zero output is a common problem and in nine out of ten cases it is due to a faulty inverter or charge controller. Hopefully it is less than the solar panel controller output voltage.