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Post by bupkis on Sept 5, 2018 14:10:37 GMT
Wake Forest University Solar Radiation data, panel specs 1000 w/sq M, just an FYI. Looks like on the 3rd a flat panel would collect ~900 during the time of your test Dang good info, I don't really understand it but I will look over it more... and try...
My panels are tilted some so it might be a little better...
The main take away is the 900w that was flat on the 3rd around 1-2 pm. This shows that your 40A of charge is doing well in good sun. The clouds interrupted that earlier and later. With tilting you were getting better than 900w for that short period. Even the day before where 800w hit a flat panel for several hrs would have been a good solar harvest (sans leaves).
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Post by tattoo on Sept 5, 2018 15:03:05 GMT
Awesome that's great news....
Just went and looked and it's boosting today and the batteries were at 12.7 so they are back to normal....
What is the sg you were talking about?
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Post by bupkis on Sept 5, 2018 17:26:35 GMT
hydrometer measures sg (specific gravity), not sure what yours should be 1.28 or higher/lower. temp corrected of course.
Your sg readings keep come up good suggesting your are fully charging!
I would be interested in the current on a sunny day when the batts get to 14.6 early and stays there for 2 hrs, this is where I would want current to taper due to batt acceptance (not the sun) down to a low value, I would increase boost time if the batt current doesn't get below 10A.
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Post by Admin on Sept 5, 2018 17:28:58 GMT
Awesome that's great news.... Just went and looked and it's boosting today and the batteries were at 12.7 so they are back to normal.... What is the sg you were talking about? It's a reference to the hydrometers reading of specific gravity Sent from my SM-G955U using Tapatalk
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Post by tattoo on Sept 5, 2018 18:03:38 GMT
hydrometer measures sg (specific gravity), not sure what yours should be 1.28 or higher/lower. temp corrected of course. Your sg readings keep come up good suggesting your are fully charging! I would be interested in the current on a sunny day when the batts get to 14.6 early and stays there for 2 hrs, this is where I would want current to taper due to batt acceptance (not the sun) down to a low value, I would increase boost time if the batt current doesn't get below 10A. Got ya on the sg I wasn't sure and that's why I asked... My SG is I just call it the reading on the hydrometer.... LOL is almost always at 1275 to 1300 most of the time at rest at 10:00 at night...
I just listened the the Rolls video and that was very interesting.... I'll watch it again so I can catch more information...
I will check on the current but like yesterday I think the battery current at the end was at 2.35a... I think that's right... I will let you know...
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Post by tattoo on Sept 5, 2018 20:58:29 GMT
Just went and looked at the CC....
The high voltage of the day was 15.4, I can't say I've seen that before.... The batteries were at 14.4 and 7.78a boosting...I don't know if it floated today but what I've learned today that really doesn't matter with my system.....
I'm not going to do any changes to the setting on my CC right now just see what it does every day for a few days.... One thing I will change in a couple weeks is increase the Eq setting...
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Post by bupkis on Sept 5, 2018 21:43:53 GMT
The batteries were at 14.4 and the panels were 7.78a boosting
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Post by tattoo on Sept 5, 2018 21:53:05 GMT
Yea I worded it wrong... It's was on this setting... I didn't have my camera with me...
Fixed it, Thanks
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Post by tattoo on Sept 6, 2018 1:42:35 GMT
I just got through watching this again..... That is very interesting and full of great tips....
Thanks for posting...
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Post by tattoo on Sept 6, 2018 12:34:23 GMT
One thing I thought was most interesting in that video ^^^^^ is the effect that temperature has to do with the battery efficiency..... I always knew it was some but not that much....
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