Schumacher 85-8100 instruction manual RATE/VOLTAGE Control Switch, Engine Start

7.3RATE/VOLTAGE CONTROL SWITCH

The Rate/Voltage Control switch on the upper-left controls the voltage and current.

Ensure that the voltage setting selected matches the voltage of the battery in- tended for charging.

Select the amperage rate that suites your application as described below:

12 V, 40 AMP TEST / PRUEBA

12 V

2 AMP

OFF

ARRÊT

APAGADA

12 V, 60 AMP BOOST CHARGE CHARGE D’APPOINT CARGA DE REFUERZO

12 V, 200 AMP

ENGINE START

DÉMARRAGE

ARRANQUE

Rate/Voltage Control Switch

SLOW CHARGE (Continuous)

2 AMP: For trickle-charging automotive size batteries, and slow overnight charging of low rated batteries used in motorcycles, snowmobiles, lawn and garden tractors, etc.

FAST CHARGE (Continuous)

40 AMP: For charging automotive style, regular and deep-cycle batteries.

BOOST CHARGE & ENGINE START (Duty Cycle)

60 AMP: For brief, high output charging. Follow BOOST CHARGE ratings (min/max, On/Off times) on charger’s front label. Refer to Quick Reference Guide for more details.

200 AMP: For automotive engine starting/cranking assist only. Follow ENGINE START ratings (min/max, on/off times) on charger’s label. Refer to the Quick Reference Guide and paragraph 7.4 for more details.

WARNING: At higher AMP rates, it becomes easier to boil and overcharge the battery. do not leave the charger unattended. Refer to the battery manufacturer’s charging instructions. Use the Charging Time Chart on the Table of Contents page, or the calculation in Section 12, to determine how long to charge. Do not leave on boost charge any longer than necessary or damage to battery will result.

7.4ENGINE START

The ENGINE START setting provides a high current suitable for crank-assist/starting a vehicle that will not start due to a discharged battery. Use the step-by-step instructions of the Quick Refer- ence Guide or use the following procedure. With the rate selector switch set to a fast charge (not boost) setting (40 AMP), charge battery for 5 minutes. After 5 minutes of charge, select the EN- GINE START position (200 AMP), set the timer to the HOLD position. Attempt to start the engine using the ignition key.

If the engine fails to start within 3 to 5 seconds, stop cranking. Return charger to the fast charge setting (40 AMP), and charge battery for another 5 minutes.

If the engine fails to start after a second or third attempt, disconnect the charger. Before replacing the battery, use a battery tester to test it.

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