Recent content by sallaben

yep, updated through the app with no warnings or error codes. App readout looks identical to the way it did on Monday, except for PV voltage. Bluetooth connection is fine and I'm on firmware version 1.61 now. I'll try resetting to default settings and reconfiguring the charger. edit: reset made...

I definitely recall reading 0.00, 0.01V PV input voltage when only connected to battery back on Monday when I first made this post. There was a firmware update for the device today. That's the only thing I've changed. Hope eggo can chime in!

I went ahead and did it anyway, using the fused 200mA test option, and the measurement exceeded 200mA. If I'm doing something obviously wrong in this test, or misunderstanding you, please let me know.

Thank you for checking out the photos. Won't testing amps at the PV input on the SCC result in a spark / short circuit through my multimeter? If the PV terminals have 12V battery power available to them then what is the difference between 1. touching multimeter probes to the PV terminals 2...

Sure. I am sorry that I am not skilled at explaining these concepts in words, I am open to any change of phrasing or terminology you might suggest. imgur dot com/a/9TkunAa The photos in this link are with zero panels connected to the combiner box. I can connect a panel directly to the SCC...

Thx MisterSandals, I'm still trying to figure this out. I've ruled out the panels themselves as the cause of my problem. Today I observed 12.78V difference between the PV input wires, with panels *detached* via breaker. PV wires are only connected to my combiner box with breaker and fuses, and...

Sorry, I didn't understand what you were asking until now. I think that is the culprit rather than the charge controller. I read an astounding 0.05A from the panel itself when I read Isc with the multimeter. But when I tilt the panel to match the sun I get a much more respectable 5A. I didn't...

Three of these panels in series right now give me 42V (open circuit). When I plug them into the charge controller, the PV terminals read 13.27V and 0.02A.

No, I'm not sure what you mean. The problem is that my charge controller is stunting my panel voltage down to the voltage of my battery. TL;DR: I'm reading 13V PV input as soon as I plug into my charge controller, whereas I read 30 Voc unplugged. Is this normal?

Yes! I have posted some voltage measurements in the original post, but I can take any new measurements that you think might help diagnose the issue.

100W. ~6A but I will never have them alone, was planning on strings of 2 in series but maybe 3 for use with MPPT, and several of those strings in parallel.

At least it's under warranty :-)

I tried 3 in series just now for 45Voc and it still reads 13.2V on the input. Definitely the controller.

The clouds aren't _too_ bad now, I see a little blue in the distance. ?️ Still reading 13.2V PV even though it's gotten brighter, so I am leaning toward a problem with the controller. If at peak sunlight time today it's still the same voltage, I'm opening a support ticket with the distributor...

No current draw at all. This particular MPPT charge controller requires battery voltage +5V from PV input, so it's not even turning on when it sees 13.2V PV.