LiFTFORCE Material Handling Battery Operating Instructions 08/01/18
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The system is designed to accept regular opportunity charging. Whenever the system is not in operation, it
should ideally be placed on charge.
LiFTFORCE batteries are fitted with Drive Away Protection and separate cables for charger and vehicle.
Power to the vehicle is automatically disabled while the battery is charging and therefore does not require
an ON/OFF switch.
5.1.2 Charging
Only GNB HF Approved Lithium chargers are to be used with the system. Standard Lead Acid chargers are
not compatible and may damage the Lithium system.
For maximum charge voltage see battery label.
If you attempt to charge the battery below 0°C then the battery system will disconnect. If the system is
required to operate below 0°C then an additional low temperature kit should be supplied with the system.
The system LED is illuminated when the battery is connected to the vehicle or charger.
5.1.2 Balancing charging
When not in use the vehicle must be placed on charge. It is strongly recommended that the vehicle is
placed on charge for a period of at least 6 hours once every week. Without this “maintenance charge” the
system performance will not be optimised. Balancing charge is completed if the charger shows “charge
complete” (i.e. all LEDs are shown green)
5.3 Over Discharge Protection
IF THE BUZZER STARTS TO BEEP FOR LOW SOC WHILE THE VEHICLE IS BEING USED, IT SHOULD BE
RETURNED TO THE CHARGER AS SOON AS POSSIBLE. IF THE BUZZER SOUNDS CONTINUOUSLY, THE
VEHICLE SHOULD BE STOPPED IMMEDIATELY.
When the SOC of the battery is low, one of the following will happen, depending on the operational mode:
5.3.1 Discharge mode:
A 5 minute timer is started; a buzzer beeps once every 8 seconds and the LED on the battery flashes
quickly. This gives the operator sufficient time to take the vehicle to the charger. When 1 minute
remains, the buzzer beeps once every 4 seconds and then for the last 10 seconds the buzzer is
continuous, indicating that the vehicle will STOP imminently.
If the 5 minute timer has expired and the vehicle has not been placed on charge the battery will
shut down and the LED will pulse slowly.
The battery pack can be temporarily re-enabled by pressing the reset button on the battery; this
allows the vehicle to drive short distances and return to the charger. The reset button will re-
enable the battery pack for a certain period of time, which reduces with each reset press.
5.3.2 Charge mode:
If the battery is at a low SOC, a 30 minute timer is started to allow sufficient time for the charger to
charge the battery above the threshold. The LED will flash slowly and the buzzer will be off. The
operator should not notice any difference from normal charging.