Originally posted by STUKA BARRY
HEY RED, I WENT TO TEST FLY MY STUKA FOR A MAJOR AIRSHOW THIS WEEKEND IN PAX RIVER MD. I CHARGED THE BATTERY AS NORMAL, LIKE I ALWAYS DO. I FILLED THE TANK, AND STARTED MY NORMAL RANGE CHECK ROUTINE.
I didn't see you mention checking the battery voltage with the system on. I suspect that you lost a cell (shorted) which would give you exactly the symptoms you state.