The Renogy solar panel discharge/leakage story

Renogy made this 10 watt solar panel bought this year:

https://wb9kzy.blogspot.com/2026/03/solar.html

so as was mentioned yesterday:

https://wb9kzy.blogspot.com/2026/05/32-diodes.html

lets look at the leakage current involved.  As with the UPG solar panel from yesterday, I waited until dark, then covered the panel and measured the battery voltage and the battery to solar panel leakage (discharge) current:

12.84 volts but ZERO current, there must be some kind of low leakage circuit inside the Renogy panel ?

I didn't bother to count the lines (diodes) on the Renogy, counting gets tedious after a while and also this panel seems to be different.  But the specs are almost identical:

The problem with having the nice cables and clips is that I hate to cut them to add a diode but since there is no leakage, no cutting required, nice !

Best Regards,
Chuck, WB9KZY
http://wb9kzy.com/ham.htm