Power Source; Led Indicator And Shutdown Protection - Schumacher Electric BATTERY EXTENDER BE01257 Owner's Manual

NOTE: If more than one device is to be
powered, start one device at a time, to
avoid a power surge and overloading
the converter. The surge load of each
device should not exceed the converter's
Continuous Operation wattage rate.
IMPORTANT: Using the converter with
some rechargeable devices may damage
the converter and/or device. If you are using
the converter to operate a rechargeable
device, monitor the temperature of the
converter for about 10 minutes. If the
converter becomes abnormally hot,
disconnect it from the device immediately;
do not use the device with the converter.
USING THE CONVERTER TO OPERATE
A TV OR AUDIO DEVICE
The converter is shielded and filtered to
minimize signal interference. Despite this,
some interference may occur with your
television picture, especially with weak
signals. Below are some suggestions to
improve reception.
1. Try altering the position of the converter,
antenna cables, and television power
cord. Add an extension cord from the
converter to the TV, to isolate its power
cord and antenna cables from the 12
volt power source.

10. POWER SOURCE

Your average automobile battery at full
charge will provide an ample power supply
to the converter when the engine is on.
Keep the car running at all times when
using the converter. The actual length of
time the converter will function depends on
the age and condition of the battery and the
power demand being placed by the device
being operated with the converter.
When possible, recharge your batteries
when they are not more than 50%
discharged. This gives the batteries a
much longer life cycle than recharging
when they are more deeply discharged.

11. LED INDICATOR AND SHUTDOWN PROTECTION

The Green LED lights automatically when
the converter is plugged into a 12 volt
DC power source and is turned on. The
Red LED lights, the alarm sounds and
the converter automatically turns itself off
under the following conditions:
1. When the power input from the
vehicle's battery drops to approximately
10.5 volts, the low voltage alarm will
sound. When the voltage goes down
2. Try coiling the television power cord
and the input cables running from the
12 volt power source to the converter.
3. Affix one or several "Ferrite Data
Line Filters" to the television power
cord. Ferrite Data Line Filters can be
purchased at most electronic supply
stores.
4. Try grounding the converter with a 16
AWG (minimum) wire, using as short
of an extension length as possible.
NOTE: You may hear a "buzzing" sound
being emitted from inexpensive sound
systems when operated with the converter.
This is due to ineffective filters in the sound
system's power supply. Unfortunately,
this problem can only be resolved by
purchasing a sound system with a higher
quality power supply or higher quality filter.
USING THE USB PORT
The USB port provides up to 2A at 5V DC.
1. Plug the device into the USB port.
2. Turn the USB device on.
3. Reverse these steps when finished
using the USB port.
WARNING: The converter draws power,
even when the switch is OFF. To avoid
battery drain, disconnect the converter
when not in use.
The power converter has a battery low
voltage shutdown at 10V±0.5V DC. With
moderate to heavy loads, this will protect
against over-discharging the battery. If the
converter is running only light loads it is
advisable to recharge before the converter
low voltage shutdown point is reached.
IMPORTANT: The converter draws low
amperage from the battery with the main
ON/OFF switch turned on and no load
connected. To prevent battery discharge,
turn the converter off when you are not
using it.
below 10 VDC, the converter shuts off.
Recharge or replace the battery.
2. When the power input from the
vehicle's battery exceeds 16 volts, high
voltage overload protection occurs.
3. The continuous load demand from the
equipment or device being operated
exceeds the continuous load rating of
the converter. Use a higher capacity
converter or lower rated device.
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