Nominally a 100 watt panel would probably have.
My solar panel has low amps.
You have to know the voltage of the panel to work out the amps volts x amps watts so you need two figures to work out the third.
A 100w solar panel divided by 12 volts equates to 8 3 amps.
And running 50 feet one way run at 4 amps on 10 awg the voltage drop would be.
100 watts 17 5 volt vmp 5 7 amps imp short the panel and measure your isc in noon time sun use a 10 amp dmm or use a dc current clamp type meter.
If your solar panel controller also has a regulated voltage output voltage is never more than 12 13v dc then the current supplied to the battery may depend on the voltage that the battery has e g if the solar output is 12 3v and the battery is 12v then the battery is only being charged by 0 3v and the charging current will be small.
I have one 12v 100w solar panels which is mono crystalline it is giving 20 8v and max 0 70 amp under lord when i short two wires it gives around 4 amp i have contacted two 12v 200w mono crystalline they are giving around 10 5 amp please suggest a way to improve my 100w solar panel amp.
However an unregulated 12v solar panel can output up to 22 volts in full sun.
How much energy does a solar panel produce.
Thus the output for each solar panel in your array would.
5 hours x 290 watts an example wattage of a premium solar panel 1 450 watts hours or roughly 1 5 kilowatt hours kwh.
You can either wire multiple panels in series to increase voltage with current amps remaining the same as any one panel or wire the panels in parallel to increase current with the voltage output remaining the same as any one panel.
For the sake of example if you are getting 5 hours of direct sunlight per day in a sunny state like california you can calculate your solar panel output this way.
This is why we need a regulator or solar charger to reduce these high voltages to a level that our 12v batteries can accept.