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USER INSTRUCTIONS
AUTOMATIC CHARGING AND BATTERY STATUS MONITORING:
Battery Tender
®
chargers are completely automatic and may be left
connected to both AC power and to the battery that it is charging for long
periods of time. The charger output power, voltage, and current depends on
the condition of the battery it is charging. Battery Tender
several status LED indicators that provide a visual means to determine the
operating mode of the charger and hence the condition of the battery
connected to the charger.
When AC power is first applied to the charger all of the LED's will illuminate
for two to three seconds before starting the charge sequence listed below.
The charging/maintenance status LED indicator lights (Amber LED, Green
LED 1) are available to determine whether the charger is operating in one of
the four primary charge modes:
1)
Qualification/Initialization mode: The Monitor Circuit verifies
appropriate battery voltage levels and good electrical continuity
between the battery and the charger DC output.
2)
Bulk mode (full charge, constant current, battery is 0% to 80%
charged)
3)
Absorption mode (high constant voltage, battery is 80% to 100%
charged).
4)
Storage/float maintenance mode (low constant voltage, battery is
100% to 103% charged).
When the battery is fully charged, the charging/maintenance status Green
LED (1) indicator will turn solid green, and the charger will switch to a
storage/float maintenance charge mode. The Battery Tender
automatically monitor and maintain the battery at full charge.
®
chargers have
charger will
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BATTERY TYPE SELECT BUTTON
The
charger has a "SELECT" button which allows you
Battery Tender
®
to switch between charging a 12V Lead Acid/AGM battery or a 12V
Lithium Iron Phosphate battery (LiFePO4).
The battery type must be selected once the charger has AC
power applied and before the charger is connected to the
battery.
Once the charger has AC power and is also connected to the battery
the battery type selection cannot be changed. In order to begin a
new charge cycle, reset the charger by disconnecting it from the AC
supply as well as the wrong or defective battery for 7-10 seconds.
Reconnect the AC supply and the charger will be ready for a new
charge cycle.
The Lead Acid or the Lithium green LED will illuminate showing
which battery type has been selected and will always remain on
while connected to the AC power and the battery.
If the AC power is interrupted the charger will resume charging at the
last battery settings used.
LITHIUM IRON PHOSPHATE (LiFePO4) RECOVERY MODE
If you try to charge a dead 12 Volt Lithium Iron Phosphate (LiFePO4)
battery with a very low voltage, 4 to 8 Volts, the charger will
automatically switch into the Recovery Mode. When in this mode the
Lithium green LED (2) will flash, and the charging/storage amber
LED will be solid. If successful and once complete the charger will
automatically switch back to the normal charge cycle.
There is a three (3) hour time limit for this recovery process. If not
successful, the charging/storage Green LED (1) will turn on for a
second then off and then the Amber LED will flash five (5) times. It
will continue this sequence until the charger is disconnected from the
AC source. If this happens there is a good chance that the battery
has already been damaged due to the low voltage and cannot be
recovered.
In order to begin a new charge cycle, reset the charger by
disconnecting it from the AC supply as well as the wrong or defective
battery for 7-10 seconds. Reconnect the AC supply and the charger
will be ready for a new charge cycle.
ATTENTION: The
Battery Tender
FREE CIRCUITRY. The output alligator clips, or ring terminals will
not spark when they are touched together. The
charger will not produce an output voltage until it senses at least 3
volts from the battery. It must be connected to a battery with the
CHARGER HAS A SPARK
®
Battery Tender
®
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