Expected Amps with MPPT
BlueSky 3000 manual says for a rule of thumb, "... Ignoring conversion losses the conversion process produces an output current roughly equal to PV current times the ratio of PV voltage to battery...
Forum Discussion
Lots of errors in your post, BFL13:
-first of all, all abbreviations are written with capitol letters, W, V, A etc.
-Isc is a SHORT CIRCUIT CURRENT. You get it only when panel terminals are SHORTED. You don't get it when panel is connected to the controller or directly to the batteries.
In your example with 230W panel,29.3V and 7.27A your boosted output current is 15.32A @ 13.4V, your actual boost is (15.32A-7.27):7.27.100=110%, not 8%. Your PWM + 8% would be in ballpark with 12V nominal panel volts(36 cell panel). Your 60 cell panel produces much higher boost in charging amps and that is the beauty of MPPT controller (something Salvo does not understand).
And finally, you should invest in an ammeter for a real scientific work.
-first of all, all abbreviations are written with capitol letters, W, V, A etc.
-Isc is a SHORT CIRCUIT CURRENT. You get it only when panel terminals are SHORTED. You don't get it when panel is connected to the controller or directly to the batteries.
In your example with 230W panel,29.3V and 7.27A your boosted output current is 15.32A @ 13.4V, your actual boost is (15.32A-7.27):7.27.100=110%, not 8%. Your PWM + 8% would be in ballpark with 12V nominal panel volts(36 cell panel). Your 60 cell panel produces much higher boost in charging amps and that is the beauty of MPPT controller (something Salvo does not understand).
And finally, you should invest in an ammeter for a real scientific work.
