If the charge mode is changed after charg- ing has started (by pressing the CHARGE RATE or BATTERY TYPE button), the charging process will be restarted.

The voltage displayed during charging is the charging voltage and usually will be higher than the battery’s resting voltage.

chargeR CONTROLs

DISPLAY MODE SWITCH

Use this switch button to set the function of the digital display to one of the following.

BATTERY %: The digital display shows an estimate of the percent of charge of the battery connected to the charger battery clamps.

VOLTAGE: The digital display shows the voltage at the charger battery clamps in DC volts.

ALTERNATOR %: The digital display shows an estimated percentage of the output of the vehicle charging system connected to the charger battery clamps as compared to a properly functioning system.

BATTERY TYPE SWITCH

Use this switch button to set the type of battery to be charged to one of the fol- lowing.

12V REGULAR: This is the type of battery usually used in cars, trucks, and motorcycles. These batteries have vent caps and are often marked “low maintenance” or “maintenance-free”.

12V DEEP CYCLE: Deep cycle batter- ies are usually marked as “deep cycle” or “marine”. Deep cycle batteries are usually larger than the other types.

12V AGM/GEL: AGM and gel cell bat- teries have sealed cases without vent caps. Such batteries are often smaller than the other types.

6V REGULAR: This is the type of bat- tery usually used in antique and some specialized vehicles. The 6V REGULAR battery type is not selectable for batteries greater than 8.5V DC.

With the exception of AGM and gel cell batteries, all other battery types may or may not have vent caps. Vent caps are located on top of the battery and provide a means to add distilled water when needed. 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. If the battery type is unknown, use the Regular setting. Make sure the battery complies with the safety instructions on page 3.

CHARGE RATE SWITCH

Use this switch button to set the maximum charge rate to one of the following.

2ASLOW CHARGE RATE: Intended for charging small batteries such as those commonly used in garden tractors, snow mobiles and motorcycles. The 2A rate is not intended to be used as a trickle charger for larger batteries.

12A FAST   30A RAPID CHARGE RATE: Use for charging automotive bat- teries, marine batteries, and deep cycle batteries. Not intended for industrial applications.

75ASTART: Provides 75 amps for crank- ing an engine with a weak or run down battery. Always use in combination with a battery.

NOTE: To turn off the charger, unplug from the power cord from the wall outlet.

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Schumacher SC-7500A operating instructions ChargeR CONTROLs, Display Mode Switch, Battery Type Switch, Charge Rate Switch