NOCO Genius GENIUS2EU Guide D'utilisation Et Garantie page 8

1.) Mode Button Push to cycle through charging Modes.
2.) Overvoltage Error LED Illuminates solid Red; Battery Voltage is above
Protect voltage.
3.) Bad Battery Error LED Illuminates solid Red when connected battery will
not hold a charge.
4.) Reverse Polarity Error LED Illuminates solid Red when reverse polarity
is detected.
5.) Standby LED Illuminates when the charger is in Standby Mode, the charger
is not charging or providing any power to the battery.
6.) Charge LED indicates the connected battery(s) state-of-charge.
7.) Mode LED Indicates the Charge Mode the charger is currently in. Push the
MODE button to cycle through charge Modes.
8.) «Press and Hold» Mode LED Mode button must be pressed and held for
3 seconds to enter the mode.