CHARGER CONTROLS
Charger controls are located on the front panel. Understand control use before operating charger.
CHARGE/ASSIST SWITCH
The Charge/Assist switch protects the Ammeter during Start conditions and enables the Charge Rate Selector Switch to turn
on the Engine Start Assist function. During charge operations, the Charge/Assist switch must be in the Charge (LEFT) posi-
tion. For Engine Start Assist functions, the switch must be in the Assist (RIGHT) position. See Figure 2.
CHARGE RATE SELECTOR SWITCH
• The sliding selector switch on the front panel of the charger offers two Charge Rates for charging various types of bat-
teries and a Start position to assist starting engines.
• Select the correct switch position BEFORE connecting the charger to a battery or AC power source.
• Selections are made by sliding the switch into the correct position, corresponding with the type of battery being charged,
as follows:
• Small 12 volt DC batteries such as those used in motorcycles, garden tractors, ATVs, jet skis, and snowmobiles can be
damaged by high rates of charge. ALWAYS select the 2 Amp/12 Volt setting (RIGHT switch position) to charge this type
of battery. For a slower charging time on larger batteries select the 2 Amp/12 Volt setting.
S
ELECTOR
S
WITCH
P
OSITION
C
HARGING
R
ATE
LEFT
55 A
MP
ENGINE START ASSIST
CENTER
10 A
MP
/12 V
OLT
DC C
HARGE
(
LARGER BATTERIES
)
RIGHT
2 A
MP
/12 V
OLT
DC C
HARGE
(
SMALLER BATTERIES
)
WARNING:
IF IN DOUBT ABOUT SELECTING A CHARGE RATE, SELECT THE LOWER RATE. BATTERIES GET
WARM DURING CHARGING - IF BATTERIES ARE GETTING HOT, DISCONTINUE CHARGING AND INVESTI-
GATE FOR DAMAGED BATTERY.
AMMETER AND INDICATORS
The ammeter is the colored (red, green and blue) chart on the front of the unit. It displays the current flowing from the charg-
er to the battery, in amperes.
The current when starting to charge a battery will depend on the battery's percent of charge. The actual current will usual-
ly be lower than the current selected on the charger's switch, unless the battery is severely discharged. As the battery charge
level increases, the current reduces.
The ammeter is intended to show how the charging process is proceeding, it should not be used to determine the level of
battery charge - this should be done using a hydrometer or a voltmeter.
Typically 12.6 VDC is considered full charge on a 12 volt battery if the voltage is measured one hour after the charger is
disconnected. During charging, a nominal 12 volt battery can be 13.6 volts or somewhat higher, so it needs to rest after
charging to measure actual state of charge.
The charger's built-in battery full circuitry automatically taper charges the battery as it approaches full charge and discon-
tinues charging when the battery reaches full charge. When the battery is fully charged the Charging Complete indicator
lights. See Figure 4B Charging Complete indicator and Polarity indicator.
FIGURE 2
FIGURE 3
4
