Ryobi RY9904 - Manual (Page 10)

8 − English
OPERATION
WARNING:
Do not allow familiarity with products to make you
careless. Remember that a careless fraction of a second
is sufficient to inflict serious injury.
WARNING:
Always wear eye protection with side shields marked to
comply with ANSI Z87.1. Failure to do so could result in
objects being thrown into your eyes resulting in possible
serious injury.
WARNING:
Do not use any attachments or accessories not
recommended by the manufacturer of this product. The
use of attachments or accessories not recommended
can result in serious personal injury.
APPLICATIONS
You may use this product for the following purposes:

Charging 6 and 12 Volt lead acid batteries.
CAUTION:
If at any point during the charging process none of the
LEDs are lit, remove the battery charging cable from
the battery and disconnect the AC power cord from the
power source to avoid damaging the product. DO NOT
connect the battery maintainer to another battery. Return
the maintainer and battery to your nearest service center
for service or replacement.
CAUTION:
Charge in a well-ventilated area. Do not block maintainer
vents. Keep them clear to allow proper ventilation.
WARNING:
Use the battery maintainer to charge 6 and 12 Volt lead
acid batteries only. Other types of batteries may burst,
causing personal injury and damage.
VOLTAGE SELECTOR SWITCH
See Figure 3.
The battery maintainer can charge both 6 Volt and 12 Volt
vented wet lead acid batteries. The amount of voltage pro-
vided by the maintainer is controlled by the voltage selector
switch. To charge 6 Volt batteries, slide the selector fully to
the left. To charge 12 Volt batteries, slide the selector fully
to the right. To turn the unit off, place the selector in the
middle position.
ATTACHING TERMINAL RINGS OR BATTERY
CLAMPS
See Figure 4.
Terminal rings and battery clamps have been included with
the product to support different battery types.
To attach:

Disconnect the battery charging cable from the battery
maintainer.
 Slide the open end of the terminal ring or battery clamp
onto the battery charging cable until it is securely
attached.
NOTE: Never start a vehicle if the maintainer is attached
to the vehicle battery.
To remove:

Disconnect the battery charging cable from the battery
maintainer.
 Pull the terminal ring or battery clamp away from the
battery charging cable and store for later use.
CONNECTING THE BATTERY CHARGING
CABLE TO THE BATTERY
See Figures 5 - 7.
To connect the battery charging cable with clamps:

Ensure the voltage selector switch is in the off position.
 Connect the battery maintainer to the power supply. Make
sure the power supply is normal household voltage, 120
volts, AC only, 60 Hz.
 Plug the end of the battery charging cable into the end of
the maintainer’s DC cord. Ensure that the battery charging
cable fits snuggly into the DC cord, but do not force it.
 Using the battery clamps, connect the battery charging
cable to the battery terminal. Connect the red wire to the
positive (+) terminal first, then connect the black wire to the
negative (-) terminal. Make sure all connections are secure.
NOTE: Be careful not to short across the terminals when
installing. Shorting the terminals together can cause
sparks, damage to the battery or generator, or even burns
or explosions.
To connect the battery charging cable with rings:

Ensure the voltage selector switch is in the off position.
 Connect the battery maintainer to the power supply. Make
sure the power supply is normal household voltage, 120
volts, AC only, 60 Hz.
 Plug the end of the battery charging cable into the end of
the maintainer’s DC cord. Ensure that the battery charging
cable fits snuggly into the DC cord, but do not force it.
 Remove the nuts and bolts from the battery terminals.
 Connect the red wire to the positive (+) battery terminal
first, then connect the black wire to the negative (−)
battery terminal using the nuts and bolts. Make sure all
connections are tight.