No LED is lit when the charger is connected to both the power outlet and the battery
Explanation: The battery voltage could be under 2 +/- 0.5V.
No LED is lit when the charger is connected only to the battery
Test: Test against another battery that is fresh.
Explanation: The charger requires voltage from the battery for the Standby LED to be lit.
The charger does not switch from into maintenance charging
Test: Connect the charger to a fresh battery.
Explanation 1: Larger loads are connected to the battery at the same time.
The error LED is lit
Test: Disconnect the loads from the battery and try to charge again.
Explanation 2: Defective battery.
Test: If possible, measure the voltage on the battery when the charging should be completed. If the voltage is under 14,1V the battery is most likely faulty.
Test: Try the charger on another fresh battery.
Explanation: Reverse polarity.
No LED is lit when the charger is connected only to the power outlet
Test: Make sure that the + cable/clamp is connected to the + terminal and the – cable/clamp is connected to the – terminal.
Explanation: One of the LED’s at the lower row should light up when the charger is connected to the power outlet.
and is lit (flashing rapidly) simultaneously
Test: Make sure that there is power from the power outlet.
Explanation 1: Bad connection.
The charger goes into Standby mode after the power is cut and the charging does not start again
Test: Move the clamps and make sure there is no loose connection in the quick connector, CONNECT.
Explanation 2: The charger is working in the desulphation phase.
Test: Leave the charger to charge for 24h (with some supervision). If the charger does not start charging (one of the LED’s are lit) within 24h the battery is in a very poor condition.
Explanation: The charger will turn into Standby if the voltage in the battery is below 6V when the power is back on.
switches to after the charge has been stopped
Test: Start the charging again by pressing on the mode button.
Explanation: When the charger restarts the battery voltage is monitored. If the battery voltage is above 12,9V, the charging will not commence. When the battery is between 12,9V and 14,4V it is considered as fully charged. The charging will automatically start again when the battery voltage drops below 12,9V.