Recent content by gregcron

Thanks for the reply. I'm guessing from the lack of cycling in the past month or two, the BMS ah counter is out of sync. It looks like the ah remaining after the 'reset capacity' is likely related to the %/voltage rules you mentioned - as the BMS settings are currently set at 3.3V = 60%...

A few questions regarding my setup, which includes 2*280ah 24v batteries in parallel with Overkill BMS and a Growatt AIO charger/inverter. 1. When I store the van in my garage, usually I keep the Growatt plugged into the house to keep things topped up. I have Utility as first charge & load...

Not likely, but I'll play with it. At least I understand what's going on now :) I ordered some Victron 12-24 B2B chargers so I'll have a backup / supplement when needed since it seems like 1.1kw is about all I should be expected out of the solar (maybe a couple hundred watts more if I can...

I maybe could have figured some way for both top and bottom to slide out half distance. Not sure how price would have compared. I would have needed 4 sets of slides instead of 2, and 2 linear actuators instead of 1, but also would have avoided the nutty price jump when you get up to 60" so...

I'm not sure. These are already 60" 500lb drawer slides sliding out quite a bit of weight (3 panels along w. some 8020 framing), so I don't want to push my luck too far. I'll see what kind of overlap I get if I really extend them out as far as they can possibly go, but seems like it's still...

Jordi I think that's the case - thanks for your input. I covered about 10" of only a single panel on the top set and overall output dropped right down to about 350w. That's about what I'm getting out of the bottom set of panels when the top is extended, which makes sense. Uncovered, I was...

Interesting point. In the event that they are wired in series long-ways, I could see it being more impactful than I planned for having 8" long-ways shaded. Perhaps tomorrow I will shade off ~8" on the top set and see if they drop down to similar numbers. I was aware of the partial shading...

Interesting. So the main wire going to the charge controller is a wire I made with MC4 connectors. However, it seems fine enough given that I can get up to 1.1KW total across both sets, and ~750w from the upper set alone. When I tested the single bottom panel, that was done using the factory...

After some tweaking (unplugging and replugging, mainly), I am getting some charge out of the bottom array. Seems like perhaps my charge controller needed to restart to pick up. However, it is still very minimal. All 3 bottom panels: ~320-350w Bottom single panel isolated: 115w Bottom two...

I have a van setup with 6 panels. These are in 3 series, 2 parallel. They are on top of each other on drawer slides with a linear actuator, so I'll refer to the two sets as "top" and "bottom", each being 3 panels connected in series. Each panel is 40v, producing 120v in series. Each panel...

Alright.. I'll have to wire them in series and discharge them, then. Those two cells are still at 3.8/3.9v. I guess I'll wire them in series with 2 others for a 12v battery and plug the fridge into it for a bit. The trickle continues on the charger.. still at 3.8v after being on it all day...

Yeah for sure. I thought following Will Prowse's video was a safe bet. Now I know otherwise. :/ You recommended putting the 3.7v cells in parallel with the 3.37v cells. Is that the recommendation or is that dangerous to the cells?

^ The post above yours suggested this is a bad idea as it risks damaging the cells... Hey - I'm not particularly in a rush, just new to this figuring things out as I go. I followed this video and took his advice to use the 12v battery charger: which is what appears to have over-charged the...

I've just checked this morning. The two cells that had high voltage are still high - 3.89 and 3.99 volts. I've wired the rest in parallel and plugged it to the power supply - just charging at 3.6 volts until I can be out there to check on it every half hour. What should I be doing with the two...

Thanks - I will check the cells tomorrow, put them all back in parallel, and turn the PS up a bit -- hopefully can observe some progress.