Advice on deep cycle setup?
Hello, I have a Safari van that I've converted into a camper. I replaced the starting battery with a Duracell Ultra Dual Purpose (Starting/Cycling) Battery that cost $105 (got it at batteries ...
Forum Discussion
red31 wrote:full_mosey wrote:
I am thinking that the array Volts are Vmp.
Would that be clouds at dawn or v array changing from Voc to Vmp?
coincidence it happens ~batt V?
PWM might start when your Vmp was ~25v?
Cloudy early then transitioning to mostly sunny with broken and very thin clouds. Our eyes automatically adjust so we don't see what the panel sees as insolation.
I believe we have Voc up until the transition from night=3 to Bulk=5. Charge_state=3 is also called 'disconnected'. That is when you also see Target Volts( which I have capped at 15V).
Also you see the V-Array go flat as Bulk begins which I interpret as Vmp because now the the MPPT is drawing Amps. I believe the MPPT actually draws Amps in contrast to the PWM approach which passively lets Amps pass.
Here is the same data with an ending date/time in the title.
HTH;
John
