9
9)
NO BATTERY CONNECTION:
If there is either no connection or
a bad connection between the alligator clips and the Battery, one
of the Battery Chemistry LED’s will flash and one of the Charge
Rate LEDs will be solid and the Battery Level LED’s across the
top of the charger will also flash.
10
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.
ATTENTION: The Battery Tender
®
CHARGER HAS A SPARK FREE
CIRCUITRY.
The output alligator clips will not spark when they are touched
together. The charger will not produce an output voltage until it senses at
least 2-3 volts from the battery. It must be connected to a battery with the
correct polarity before it will start charging a battery. Therefore, if you plug
the AC power cord into an AC power outlet, and if the output alligator clips
are not connected to a battery, and if you touch the alligator clips together,
there will be no electrical spark.
REVERSE POLARITY PROTECTION:
The
battery charger is protected
against any damage due to the DC output leads being connected to the
opposite polarity battery post.
ELECTRICAL SPARKING
will occur when the
clips are connected in this way.
NOTE:
THE OUTPUT CLIPS MUST BE CONNECTED TO A BATTERY BEFORE
THE CHARGER CAN PRODUCE AN OUTPUT VOLTAGE, EXCEPT
WHEN IN THE DC OUTPUT MODE
WORKING WITH A DEAD BATTERY OR A BATTERY WITH A VERY LOW
VOLTAGE:
If you try to charge a dead battery either lead-acid (standard) or AGM having
a voltage between 2-3 volts (8V for Li-Ion), the charger will not start. An
internal safety circuit prevents the charger from generating any output
voltage unless it senses at least 3 volts (8V for Li-Ion) at the charger output.
NOTE:
If a 12-volt, lead-Acid (standard) battery has an output voltage of less than 9
volts when it is at rest, when it is neither being charged nor supplying
electrical current to an external load, there is a good chance that the battery
is defective. As a frame of reference, a fully charged 12-volt, lead-Acid
battery will have a rest-state, no-load voltage of approximately 12.9 volts. A
fully discharged 12-volt, lead-acid battery will have a rest-state, no-load
voltage of approximately 11.4 volts. That means that a voltage change of
only 1.5 volts represents the full range of charge 0% to 100% on a 12-Volt,
lead-acid battery. Depending on the manufacturer, and the age of the
battery, the specific voltages will vary by a few tenths of a volt, but the 1.5-
volt range will still be a good indicator of the battery charge %.
