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
"Are you suggesting that the MPPT will perform as a PWM in Absorption and only deliver 2A?"
No. The controller is still a buck converter even though it is not doing the tracking for MPP anymore once it goes to Absorb from Bulk.
So it is still output watts/battery voltage for the amps. In Absorb it reacts to "demand" so if the load goes up, it will provide more amps to supply that load, up to what the solar conditions at the time allow for that array.
The load 12v things get first crack at any solar output, with the battery getting anything left over (same as with a converter when you are on shore power) so if the controller has gone to Absorb, meaning the batteries are fairly high in SOC, the battery voltage will still be quite good for a while even though the load has gone up-with solar taking some of it.
Eventually, the battery voltage will fall under its share of the load and get down to the controller's setting for restarting Bulk (and so MPPT)
Not sure about PWM with those 100vmp panels. PWM controllers usually have Voc limit around 50 volts.
No. The controller is still a buck converter even though it is not doing the tracking for MPP anymore once it goes to Absorb from Bulk.
So it is still output watts/battery voltage for the amps. In Absorb it reacts to "demand" so if the load goes up, it will provide more amps to supply that load, up to what the solar conditions at the time allow for that array.
The load 12v things get first crack at any solar output, with the battery getting anything left over (same as with a converter when you are on shore power) so if the controller has gone to Absorb, meaning the batteries are fairly high in SOC, the battery voltage will still be quite good for a while even though the load has gone up-with solar taking some of it.
Eventually, the battery voltage will fall under its share of the load and get down to the controller's setting for restarting Bulk (and so MPPT)
Not sure about PWM with those 100vmp panels. PWM controllers usually have Voc limit around 50 volts.
