Then the inverter is probably shutting down because the input voltage is too high , maybe open up the panel and disconnect two of the cells from the chain.The operating range is 10.5-15v
I tried everything even hide some of the light that comes to the panel to reduce the voltage
You have plenty of spare cells , I would try first try encapsulating one cell ... see if 40 gms is enough to cover 1 cell it may be enough to cover a few (solder on the buss wire so it will work ) ... normal fiberglass resin is much cheaper (you can probably find it locally) and can be used for the back , you could just carefully glue the back to a sheet of glass and when that's set put clear cast over the face ... I haven't worked with the product pictured I hope it's UV resistant.Bro how many of those should I need ?
I think that's a good idea , it will also help other issues(passing clouds) ... but use super caps , they're just as cheap and 1000 times more effectiveOne other idea is to add a stabilizing capacitor across the solar cell array output, which may improve the inverter operation. Several thousand microfarads rated at 20 volts or more should help a bit. I am guessing that the inverter has a higher momentary current requirement during each cycle of the output voltage.
I suggested checking the inverter by running it from a car battery back in post #14. AND I have several times asked to measure the voltage at the inverter input terminals. THAT voltage will tell a lot, and it may not be the same as the voltage at the solar cell output terminals.A friend of mine called me one evening after his shift. Said his car wouldn't start. He suspected his timing belt was probably due for a changing so he had one with him. When I got there I asked if he had gasoline. "Yeah, a quarter tank." Looking at the gas gauge confirmed what he said. We changed the belt. Made sure everything was correct and buttoned it up. The car didn't start. Convinced we did something wrong we tore it all down again - right there in the parking lot, in the dark. We had flashlights. Checked everything and made sure everything was correct. Couldn't find any problem so we put it all back together again. Still wouldn't start. Again I asked about the fuel. We dribbled a little gasoline into the throttle body and cranked the car. It started right up but stalled as soon as the gas we dribbled in had been consumed. So it wasn't a timing issue, nor was it ignition. He assumed he had a bad fuel pump. So we left the car for the night.
Next morning (Saturday) we arrived with a new pump. Pulled the fuel tank down and removed the old pump. Looking into the tank it was clear what the problem was - - - no fuel. The gas gauge was stuck at the quarter mark.
The moral of the story - "Make sure everything is in working order." So my question: Do we know the inverter works when powered from batteries? I didn't see anyone ask that question yet.
BTW: My friend felt like a complete arse. Twice into the timing belt and once into the fuel tank all because he had no fuel. And I had asked him if he had fuel.
A 5 AH battery should be able to power the inverter long enough to verify that it is working. That is all that is required.Our world is huge. Things "over there" are different to things here. A car over there has 3 wheels and you can lift it with one hand. Its little battery is maybe 5AH?