• 8 •
CHARGING STATUS LED INDICATORS
Charging (yellow/orange) lit – The charger is charging the battery.
Charged/Maintaining (green) lit – The battery is fully charged and the charger is in maintain mode.
NOTE: See Operating Instructions for a complete description of the charger modes.
CHARGE RATE BUTTON
Use this button to select one of the following rates:
Models DSR134 and SC1485:
– 35 minute charge for automotive and marine batteries. Maximum charge rate for large
batteries that can accept up to 60A of charging current. (Charging will continue after the timed interval, until
the battery is fully charged.)
– Up to 240 minute charge for automotive and marine batteries. Maximum charge rate for
large batteries that can accept up to 60A of charging current.
– Up to 240 minute charge for motorcycle, lawn tractor and ATV batteries. Maximum
charge rate of 5A for small batteries.
– Up to 240 minute charge for 6V batteries. Maximum charge rate for large batteries that
can accept up to 60A of charging current.
Model DSR137:
– Maximum charge rate for large batteries that can accept up to 30A of charging current.
– Maximum charge rate of 5A for small batteries.
(30A Service) – Maintains stable voltage at 13.6V, while providing up to 30A of current,
to prevent battery discharge during service or when idle in a showroom. Always use in combination
with a fully charged battery.
– Maximum charge rate for large batteries that can accept up to 30A of charging current.
CAUTION: Do not use the 12V setting for a 6V battery. Overcharging will occur. The battery may burst
and cause injury to persons and damage to property.
START/STOP BUTTON
Use this button to start or stop the charging process, after the battery is properly connected and the charge
rate and battery type have been selected. The display will briefly show “ON” when the START/STOP button
is pressed. After charging has started, pressing the START/STOP button will cause the display to briefly
show “OFF”.
BATTERY TYPE/RECOVERY MODE BUTTON
Use this button to select the type of battery or Recovery mode.
NOTE: Batteries should be marked with their type. If charging a battery that is not marked, check the
manual of the item that uses the battery.
NOTE: When the “LITH” battery type is selected, only the 12V charge rates are available.
STD (Standard) – 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 has a greater plate count. The plates are thinner and have somewhat different
material composition. Standard batteries should not be used for deep-cycle applications.
Deep-Cycle – Set button to AGM.
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. 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 batteries. AGM batteries are
typically good deep cycle batteries and they deliver best life performance if recharged before the battery
drops below the 50 percent discharge rate. If these AGM batteries are completely discharged, the cycle life
will be 300 plus cycles and this is true of most AGM batteries rated as deep-cycle batteries.
