Schumacher Proseries PSW-7700 Owner'S Manual Download Page 13

11 

The Chart Method

Use the following table to more accurately determine the time it will take to 

bring a battery to full charge. First, identify where your battery fits into the 

chart.
NR means that the charger setting is NOT RECOMMENDED.
Find your battery’s rating on the chart below, and note the charge time given 

for each charger setting. The times given are for batteries with a 50% charge 

prior to recharging. Add more time for severely discharged batteries.

BATTERY SIZE/RATING

CHARGE RATE/CHARGING TIME

15 AMP 30 AMP 35 AMP

70 Amp

SMALL 

BATTERIES

Motorcycle,

garden,

tractor, etc.

6 - 12 AH

NR

NR

NR

NR

12 - 32 AH

NR

NR

NR

NR

CARS/

TRUCKS

200 - 315 CCA

40 - 60 RC

1½ - 2 

hrs

¾ – 1 hr. 40 – 50 

min.

20 - 30 

min

315 - 550 CCA

60 - 85 RC

2 - 2½ 

hrs

1 – 1¼ 

hrs.

50 – 60 

min.

30 - 40 

min

550 - 1000 CCA

80 - 190 

RC

2½ - 4½ 

hrs

1¼ – 2¼ 

hrs.

1 – 2 

hrs.

40 min - 

1 hr

MARINE/DEEP CYCLE

80 RC

2¼ hrs

NR

NR

NR

140 RC

3½ hrs

NR

NR

NR

160 RC

4 hrs

NR

NR

NR

180 RC

4½ hrs

NR

NR

NR

MAINTENANCE INSTRUCTIONS

14. 

After use and before performing maintenance, unplug and disconnect the 

14.1 

battery charger (see Sections 6, 7 and 8).
Use a dry cloth to wipe all battery corrosion and other dirt or oil from the 

14.2 

terminals, cords, and the charger case.
Ensure that all of the charger components are in place and in good working 

14.3 

condition, including the plastic boots on the battery clips.
Servicing does not require opening the unit, as there are no user-serviceable 

14.4 

parts.

STORAGE INSTRUCTIONS

15.

Store the charger unplugged, in an upright position. The cord will still conduct 

15.1 

electricity until it is unplugged from the outlet.
Store inside, in a cool, dry place.

15.2 

Do not store the clips on the handle, clipped together, on or around metal, or 

15.3 

clipped to cables. 

Summary of Contents for Proseries PSW-7700

Page 1: ...PSW 7700 Outdoor Approved Manual Battery Charger READ THE ENTIRE MANUAL BEFORE USING THIS PRODUCT FAILURE TO DO SO CAN RESULT IN SERIOUS INJURY OR DEATH OWNER S MANUAL Voltage 6 12 24 Amperage 15 30...

Page 2: ...2 PERSONAL PRECAUTIONS 2 PREPARING TO CHARGE 3 CHARGER LOCATION 4 DC CONNECTION PRECAUTIONS 4 FOLLOW THESE STEPS WHEN BATTERY IS INSTALLED IN VEHICLE 4 FOLLOW THESE STEPS WHEN BATTERY IS OUTSIDE VEHI...

Page 3: ...serious injury to the operator or bystanders Indicates a potentially hazardous situation which if not avoided could result in death or serious injury to the operator or bystanders Indicates a potenti...

Page 4: ...off the controls will not reduce this risk Remove personal metal items such as rings bracelets necklaces and watches 1 6 when working with a lead acid battery A lead acid battery can produce a short...

Page 5: ...away If battery acid is accidentally swallowed drink milk the whites of eggs or water 3 5 DO NOT induce vomiting Seek medical attention immediately If it is necessary to remove the battery from the v...

Page 6: ...o close the hood during the charging process ensure that the hood does not touch the metal part of the battery clips or cut the insulation of the cables Stay clear of fan blades belts pulleys and othe...

Page 7: ...king the final connection 7 5 When disconnecting the charger always do so in the reverse order of the 7 6 connecting procedure and break the first connection while as far away from the battery as prac...

Page 8: ...feet long use an 8 gauge extension cord FEATURES 9 1 2 3 4 5 Ammeter 1 Voltmeter 2 Clips 3 Charge Rate 4 Selector Switch Timer 5 Wheel 6 6 ASSEMBLY INSTRUCTIONS 10 It is important to fully assemble y...

Page 9: ...you determine the appropriate state of charge of your battery as specified in Section 13 and set the timer accordingly Hold This position defeats the timer function allowing for continuous operation B...

Page 10: ...components are in place and in good working 1 condition including the plastic boots on the battery clips Connect the battery following the precautions listed in Sections 6 and 7 2 Select the appropri...

Page 11: ...f such a battery will gradually drop during the period immediately after the charging system is disengaged Consequently the tester could display inconsistent values for such a battery For a more accur...

Page 12: ...r Rating Reserve Capacity 16 2 NOTE The Reserve Capacity can be obtained from the battery specification sheet or the owner s manual To calculate the time needed for a charge Find the percent of charge...

Page 13: ...0 1000 CCA 80 190 RC 2 4 hrs 1 2 hrs 1 2 hrs 40 min 1 hr MARINE DEEP CYCLE 80 RC 2 hrs NR NR NR 140 RC 3 hrs NR NR NR 160 RC 4 hrs NR NR NR 180 RC 4 hrs NR NR NR MAINTENANCE INSTRUCTIONS 14 After use...

Page 14: ...cked Check the charger settings and battery voltage The charger is making an audible clicking sound Circuit breaker is cycling Battery is defective Shorted battery cables or clips Severely discharged...

Page 15: ...rest time before the next crank Check for poor connection at battery and frame Check power cord and extension cord for loose fitting plug Check for open fuse or circuit breaker supplying AC outlet The...

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