Air conditioning on solar
So today I put together the three solar systems on the 8-D, hooked up the PowerJack inverter and then the 5000 BTU air conditioner. The Air conditioner is a Frigidaire unit that uses 446w/ 3.9a @120v....
Forum Discussion
Looks to me that it is designed in Oz but not built there.
A 120w poly has Isc of 7.6a, which you will get with PWM so with MPPT doing amazing things it might hit 10amps.
The 13.8 is the Float voltage of the controller. If they are using , EG, an EP Solar Tracer MPPT ($140 maybe) that has the same fixed charging profile as the EP Solar PWM LandStar one like I had. It takes the battery up to 14.6v then holds it there for 2 hours and then drops to 13.8v Float for the rest of the day.
I was happy enough with that profile but prefer to leave it at 14.6 longer than two hours sometimes depending on various factors. I like my Solar30 way better.
They don't show the actual panel specs that I noticed anyway.
IMO forget that whole deal and just get a 120w panel and a $35 Solar30 controller, which has the desired adjustable voltage so you can set it to 13.8 or whatever all you like.
It is more controller amps than you need but it has the amps readout and adjustable voltage that most in that price range or below don't have, so it is worth the extra $15 over the typical eBay job that would still work ok.
A 120w poly has Isc of 7.6a, which you will get with PWM so with MPPT doing amazing things it might hit 10amps.
The 13.8 is the Float voltage of the controller. If they are using , EG, an EP Solar Tracer MPPT ($140 maybe) that has the same fixed charging profile as the EP Solar PWM LandStar one like I had. It takes the battery up to 14.6v then holds it there for 2 hours and then drops to 13.8v Float for the rest of the day.
I was happy enough with that profile but prefer to leave it at 14.6 longer than two hours sometimes depending on various factors. I like my Solar30 way better.
They don't show the actual panel specs that I noticed anyway.
IMO forget that whole deal and just get a 120w panel and a $35 Solar30 controller, which has the desired adjustable voltage so you can set it to 13.8 or whatever all you like.
It is more controller amps than you need but it has the amps readout and adjustable voltage that most in that price range or below don't have, so it is worth the extra $15 over the typical eBay job that would still work ok.
