steve whiteside
Senior Member
Gents,
So I am still getting calibrated on my Victron Battery system. I have 2ea 1300watthr batteries. Yesterday I was down to ~21% based on my BMV 712. It was overcast day here in San Diego. Around noon I pulled the truck out of the garage and went to the beach. Intermittently, I saw 70-130 watts input on the Victron. I have 4 ea 100watts panels on the roof.
At 7pm I went back out to the truck to see I was at 100% capacity and the watts in were at ~7-8watts indicating I was full of capacity.
It seems to me that I got to 100% way too fast. There were hours in between checking the victron for "watts in" but the conditions didn't really change. Im assuming not more than 150 watts into the system based on the overcast Sky.
For instance, say at 21% I had 600whr left in the batteries. Then say I averaged 100watts generated from the panels for 7 hours. that would be 600+700= 1300 = 50%. For me to have made it to 100% I would have needed to generate 385watts for all of those 7 hours- which wasn't in line with what I saw with my intermittent checking.
I checked that my setting capacity is correct at 210amp hours.
Thoughts?
Steve
So I am still getting calibrated on my Victron Battery system. I have 2ea 1300watthr batteries. Yesterday I was down to ~21% based on my BMV 712. It was overcast day here in San Diego. Around noon I pulled the truck out of the garage and went to the beach. Intermittently, I saw 70-130 watts input on the Victron. I have 4 ea 100watts panels on the roof.
At 7pm I went back out to the truck to see I was at 100% capacity and the watts in were at ~7-8watts indicating I was full of capacity.
It seems to me that I got to 100% way too fast. There were hours in between checking the victron for "watts in" but the conditions didn't really change. Im assuming not more than 150 watts into the system based on the overcast Sky.
For instance, say at 21% I had 600whr left in the batteries. Then say I averaged 100watts generated from the panels for 7 hours. that would be 600+700= 1300 = 50%. For me to have made it to 100% I would have needed to generate 385watts for all of those 7 hours- which wasn't in line with what I saw with my intermittent checking.
I checked that my setting capacity is correct at 210amp hours.
Thoughts?
Steve