Energizer 50904 User Manual page 10

CHARGING
NOTE: Before using the charger, please review all safety and connection directions.
Failure to do so can damage the battery and cause serious injury or death.
• Connect the charger to the battery per the operating instructions.
• Connect the charger to an AC outlet.
• Select the appropriate charging mode for your battery.
• If the charger does not detect a properly connected battery, the Reverse Polarity Indicator
LED will light or an Error Code will appear on the LCD display until a properly connected
battery is detected. Charging will not begin while the Reverse Polarity Indicator LED is on
or an error code is displayed. When charging begins, the 'Charging Progress' icon on the
LCD display will be lit.
• When charging is complete, unplug the charger from the AC outlet first and then disconnect
the battery from the charger.
AUTOMATIC CHARGE MODE:
The charger uses a proprietary 9-stage charging process designed to optimally charge and
maintain batteries. (The below chart and illustration show the charging routine when charging
a 12V deeply discharged battery in mode 3).
Stage 1 — Diagnosis: The battery is analysed to ensure it can be charged, so as to prevent
charging a defective battery. If the battery voltage is 0V-0.5V, the charger assumes there is a
wrong connection; 0.5V-1.5V the battery is defective; 1.5V-12V, the pre-charge stage will
begin;12V-14V, Constant Current charging stage will begin;14V-15V the battery is fully
charged; If the battery is >15V, the charger assumes there is a bad connection.
Stage 2 — Desulphation ： If the battery was sulfurized, the charger will clear the sulphide by
higher current and voltage to recover battery capacity.
Stage 3 — Pre-charge: If the battery voltage is less than 12V, charge it at the smaller current,
which will protect the battery better;
Stage 4 — Soft start: Charge the battery to the maximum current gradually and never
suddenly.
Stage 5 — CC1,CC2,CC3 (Constant current): The charger automatically adjusts the current
according to the battery status in constant current, which benefits the battery for a long life;
Stage 6 — Constant voltage (CV) absorption charging stage. The charging voltage remains at
14.6V, but the charging current reduces gradually until the battery is fully charged.
Stage 7 — Resting: When the battery is fully charged, the charger cuts off.
Stage 8 — Reconditioning ： If the battery voltage falls fast after being fully charged, it indicates
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