Schumacher SI-1275A - Manual (Page 30)

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8. GROUNDING AND AC POWER CORD CONNECTIONS
RISK OF ELECTRIC SHOCK OR FIRE.
8.1 This battery charger is for use on either a nominal 120V,
50/60 Hz or a nominal 230V, 50/60 Hz circuit. (See the warning
label on the charger for the correct input voltage.) The charger
must be grounded to reduce the risk of electric shock. 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 fit 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 fit the outlet, have
a proper grounded outlet installed by a qualified electrician. An improper
connection can result in a risk of an electric shock or electrocution.
8.3 If the AC cord is damaged, it must be replaced by the manufacturer, its service agent or
other qualified person in order to avoid a risk of personal injury or property damage.
8.4 Recommended minimum AWG size for extension cord:
• 100 feet long or less - use an 18 gauge extension cord.
• Over 100 feet long - use a 16 gauge extension cord.
9. ASSEMBLY INSTRUCTIONS
9.1 Remove all cord wraps and uncoil the cables prior to using the battery charger.
10. CONTROL PANEL
NOTE: Not all switches and LEDs are available on all models.
AMMETER (A)
The Ammeter indicates the amount of current, measured in amps, that is being drawn by
the battery . As a battery takes on a charge, it draws less current from the charger.
Correspondingly, the meter will show less current being drawn by the battery. When the
current stops decreasing, the battery is charged. The start area of the meter indicates
a high rate of current being drawn from the charger. When cranking an engine, the meter
needle will be at the extreme right side of the start area. The 2 amp charge rate may
indicate some activity on the meter, although the meter does not have the resolution to
display this low rate.
PERCENT OF CHARGE
The percent of charge scale is intended as a visual aid to help simplify reading the state
of charge. It is scaled for use with the 6, 10 or 12 amp charge rate only. The percent of
charge is based on the current drawn by the battery. For this reason, accuracy will vary
with the size and battery type. Typically a 28 ampere hour gel cell battery will draw less
current at the end of the charge cycle than a 140 ampere hour wet cell battery. This means
that the indication for a fully charged large battery may be slightly less than 100%.
BATTERY TYPE SWITCH
Use this switch to set the type of battery to be charged.
• SLI – These initials stand for Starting, Lighting and Ignition, which are the three
basic functions which a battery has to perform on all normal vehicles. This battery type
is usually used in cars, trucks and motorcycles. These batteries have vent caps and are
often marked “Low Maintenance” or “Maintenance-free”. This type of battery is designed
to deliver quick bursts of energy (such as starting engines) and have a greater plate
count. The plates will also be thinner and have somewhat different material composition.
Most Maintenance Free Batteries are SLI, otherwise known as Flooded, Regular or
Standard Batteries. Regular batteries should not be used for deep cycle applications.
• Deep-Cycle – Deep-cycle batteries are usually marked as “Deep-Cycle” or “Marine”.
Deep-cycle batteries are usually larger than the other types. This type of battery has less
instant energy but somewhat greater long-term energy delivery than regular batteries.
Deep cycle batteries have thicker plates and can survive a number of discharge cycles.
• AGM – The Absorbed Glass Mat construction allows the electrolyte to be suspended
in close proximity with the plate’s active material. In theory, this enhances both the
discharge and recharge efficiency. Actually, the AGM batteries are a variant of Sealed
VRLA (valve regulated lead acid) batteries. Popular uses include high performance
engine starting, power sports, deep cycle, solar and storage battery. AGM batteries are
WARNING WARNING