ORIGINAL: tp777fo
Bluebus...got a link to the hobby king extension. Does it plug into the 820?. Built an extension from the 2 S port on TP board to the JR charge connector on the battery. Set up the 820 for LiFe 2S and just get error messages from the 820. 1 picture is worth a 1000 crossckecks.
Not at my computer now, but I'm guessing if ur adapter extensions are built & soldered well & your getting an error message than polarity is probably incorrect