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7.  FOLLOW THESE STEPS WHEN BATTERY IS OUTSIDE VEHICLE
WARNING: A SPARK NEAR THE 
BATTERY MAY CAUSE A BATTERY 
EXPLOSION. TO REDUCE THE RISK 
OF A SPARK NEAR THE BATTERY:
7.1  Check polarity of battery posts. POSITIVE 
(POS, P, +) battery post usually has a larger 
diameter than NEGATIVE (NEG, N, –) post.
7.2  Attach at least a 24-inch-long 6-gauge 
(AWG) insulated battery cable to 
NEGATIVE (NEG, N, –) battery post.
7.3  Connect POSITIVE (RED) charger clip to 
POSITIVE (POS, P, +) post of battery.
7.4  Position yourself and free end of cable as 
far away from battery as possible – then 
connect NEGATIVE (BLACK) charger clip 
to free end of cable.
7.5  Do not face battery when making nal 
connection.
7.6  When disconnecting charger, always do 
so in reverse sequence of connecting 
procedure and break rst connection while 
as far away from battery as practical.
7.7  A marine (boat) battery must be removed 
and charged on shore. To charge it on 
board requires equipment specially 
designed for marine use. 
 
8.  GROUNDING AND AC POWER CORD CONNECTIONS 
8.1  This battery charger is for use on a 
nominal 120 volt circuit. The plug must 
be plugged into an outlet that is properly 
installed and grounded in accordance with 
all local codes and ordinances. The plug 
pins must t the receptacle (outlet). Do not 
use with an ungrounded system.
8.2  DANGER: Never alter the AC cord or 
plug provided – if it does not t the outlet, 
have a proper grounded outlet installed 
by a qualied electrician. An improper 
connection can result in a risk of an electric 
shock or electrocution. 
8.3  USING AN EXTENSION CORD
The use of an extension cord is not 
recommended. If you must use an 
extension cord, follow these guidelines:
• Pins on plug of extension cord must be 
the same number, size, and shape as 
those of plug on charger.
• Ensure that the extension cord is properly 
wired and in good electrical condition.
• Wire size must be large enough for the AC 
ampere rating of charger, as specied:
Length of cord (feet) 25 50 100 150
AWG* size of cord 18 18 18 16
*AWG-American Wire Gauge
9.  ASSEMBLY INSTRUCTIONS
9.1  Remove all cord wraps and uncoil the cables prior to using the battery charger.
10. CONTROL PANEL
LED INDICATORS
    POWER (green) LED lit: The 
charger is connected to AC power.
  CHARGING (yellow/orange)  
LED lit: The charger is charging  
the battery.
  CHARGED (green) LED lit: The 
battery is fully charged and the 
charger is in maintain mode.
 
BAD BATTERY/CLAMPS 
REVERSED (red) LED ashing: 
The connections are reversed.
  BAD BATTERY/CLAMPS 
REVERSED (red) LED lit:  
The charger has detected a problem 
with the battery. See Troubleshooting 
for more information.
NOTE: See Operating Instructions for a 
complete description of the charger modes.