The re-measurement of the switching thresholds with a laboratory power supply and a well-working industrial multimeter Agilent U1272A gave the following values:
Transition from yellow to red: 12.43 V
Transition from green to yellow: 12.67 V
Actually we wanted to identify a weak charged battery (approximately 12.2 V) with "red". This is with the above thresholds definitely not possible and the tested specimen in our opinion, not be used. Too bad, would fit well to the charger.
Because the functionality is not available, but there are currently only 1 point.