Helvi DISCOVERY 120 Manuel D'instructions page 14

Absorption (Stage 5):
Completes the charge up to virtually 100% at a constant voltage. The current tapers
off after the current reached the minimum level.
Recondition (Stage 6):
Select "Recondition" mode, charged by higher voltage to recondition the sulfate of
the battery to save battery life.
Analysis (Stage 7): Tests if the battery can hold charge. Batteries that can not hold
charge may need to be replaced.
Floa t(Stage 8):
Low constant voltage, minimal charge current, battery is fully charged
Pulse (Stage 9):
Maintaining the battery at 95-100% capacity. The charger monitors the battery volta-
ge and gives a pulse when necessary to keep the battery fully charged
Power Supply:
DISCOVERY 120 has a power supply mode setting which has a constant voltage of
13.8V and current up to 5A, keep to provide power to computer system of modern
car when replacing battery (Please don't reverse battery connection to avoid the
damage on the charger).
Temperature Compensation
A sensor will automatically adjust the charging voltage if the temperature deviates
from –20°C to +45°C. A high temperature environment will lower the voltage and fre-
ezing condition is handled by higher voltage. A low temperature heightens the output
voltage, and hot condition is handled by lower voltage.
Voltage compensation
Because of some voltage drop in the cables, the actual voltage at the clamps of the
battery can be lower than the charger output voltage. A special circuitry inside the
unit will monitor the true input voltage to the battery and adjust the output voltage of
the unit accordingly. This will maximize the charging efficiency.
Reverse-polarity protection
This unit offers reverse-polarity protection under charging modes, the RED LED will
illuminate and the charging process will not start. If this happens, unplug immediately
from mains, connect the red clamp to positive (+) battery post, and black clamp to
negative (-) post, then plug into the mains power and the charging process will start.
Short-circuit protection
Should you accidentally touch the clamps together whilst the mains power is on, the
unit will not perform charging. Unplug from mains, disconnect and start the process
again being careful not to touch the clamps together.
Charge Memory
If power off on charging, DISCOVERY 120 can automatically restart charging base
on previous power down status for battery and charging current.
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