Schumacher Se 1072 User Manual

277-999  
ELECTRIC CORP.  
801 BUSINESS CENTER DRIVE • MOUNT PROSPECT, ILLINOIS • 800-621-5485 • Ext. 322  
Send Warranty Product Repairs to: 605 South Vermilion, Suite C, Brownsville, TX 78521-6851  
Call Customer Service if you have questions: 1-800-621-5485  
A.  
IMPORTANTSAFETYINSTRUCTIONS  
1.  
SAVE THESE INSTRUCTIONS  
-This manual contains  
important safety and operating instructions for battery charger Model SE-1072.  
A BATTERY CHARGER RECEIVES AC POWER FROM THE ELECTRIC OUTLET, AND  
DELIVERSDCCURRENTTOTHEBATTERY.  
2. Before using battery charger, read all instructions and cautionary markings on (1)  
battery charger, (2) battery, and (3) product using battery.  
3. CAUTION - To reduce risk of injury, charge only lead acid type rechargeable batteries.  
Other types of batteries may burst, causing personal Injury and damage.  
4. Use of an attachment not recommended or sold by the battery charger manufacturer  
may result in a risk of fire, electric shock, or injury to persons.  
5. To reduce risk of damage to electric plug and cord, pull by plug rather than cord when  
disconnecting charger.  
6. Make sure cord is located so that it will not be stepped on, tripped over, or otherwise  
subjected to damage or stress.  
7. An extension cord should not be used unless absolutely necessary. Use of improper  
extension cord could result in a risk of fire and electric shock. If extension cord must be  
used, make sure:  
(a) That pins on plug of extension cord are the same number, size and shape as those  
of plug on charger;  
(b) That extension cord is properly wired and In good electrical condition; and  
(c) That wire size is large enough for AC ampere rating of charger as specified below:  
AWGSIZEOFCORD  
Length of Cord, Feet  
ACINPUTRATING,AMPERES  
Equal to or  
but less than  
25  
50  
100  
150  
Greater than  
6
8
10  
8
10  
12  
18  
18  
16  
16  
14  
14  
12  
12  
10  
10  
10  
8
8. Do not operate charger with damaged cord or plug - replace them immediately.  
9. Do not operate charger if it has received a sharp blow, been dropped, or otherwise  
damaged in any way; take it to a qualified service man.  
10. Do not disassemble charger; take it to a qualified serviceman when service or repair  
is required. Incorrect reassembly may result in a risk of electric shock or fire.  
11. To reduce risk of electric shock, unplug charger from outlet before attempting any  
maintenance or cleaning. Turning off controls will not reduce this risk.  
B.WARNING-RISKOFEXPLOSIVEGASES  
1. WORKING IN VICINITY OF A LEAD-ACID BATTERY IS DANGEROUS. BATTERIES  
GENERATEEXPLOSIVEGASESDURINGNORMALBATTERYOPERATION.FORTHIS  
REASON, IT IS OF UTMOST IMPORTANCE THAT EACH TIME BEFORE USING YOUR  
CHARGER,YOUREADTHISMANUALANDFOLLOWTHEINSTRUCTIONEXACTLY.  
Page1  
6. Do not expose charger to rain or snow.  
F. DCCONNECTIONPRECAUTIONS  
1. Connect and disconnect DC output clips only after setting any charger switches to off  
positionandremovingACcordfromelectricoutlet.NEVERALLOWCLIPSTOTOUCHEACH  
OTHER.  
2. Attach clips to battery posts and twist or rock back and forth several times to make a  
good connection. This tends to keep clips from slipping off terminals and helps to reduce  
risk of sparking.  
G. FOLLOWTHESESTEPSWHENBATTERYISINSTALLEDINVEHICLE.ASPARKNEAR  
BATTERY MAY CAUSE BATTERY EXPLOSION. TO REDUCE RISK OF SPARK NEAR  
BATTERY, DO AS FOLLOWS:  
1. Position AC and DC cords to reduce risk of damage by hood, door, or moving engine  
part.  
2. Stay clear of fan blades, belts, pulleys, and other parts that can cause Injury to persons.  
3. Check polarity of battery posts. POSITIVE (POS, P, +) battery post usually has larger  
diameter than NEGATIVE (NEG, N, -) post.  
4. Determine which post of battery is grounded (connected to the chassis). If negative  
post is grounded to chassis (as in most vehicles), see G.5. If positive post is grounded  
to the chassis, see G.6.  
5. For negative-grounded vehicle, connect POSITIVE (RED) clip from battery charger to  
POSITIVE (POS, P, +) ungrounded post of battery. Connect NEGATIVE (BLACK) clip to  
vehicle chassis or engine block away from battery. Do not connect clip to carburetor, fuel  
lines, or sheet-metal body parts. Connect to a heavy gage metal part of the frame or engine  
block.  
6. For positive-grounded vehicle, connect NEGATIVE (BLACK) clip from battery charger  
to NEGATIVE (NEG, N, -) ungrounded post of battery. Connect POSITIVE (RED) clip to  
vehicle chassis or engine block away from battery. Do not connect clip to carburetor, fuel  
lines, or sheet-metal body parts. Connect to a heavy gage metal part of the frame or engine  
block.  
7. When disconnecting charger, turn switches to off, disconnect AC cord, remove clip  
from vehicle chassis, and then remove clip from battery terminal, in that order.  
8. See operating instructions for length of charge information.  
H. FOLLOWTHESESTEPSWHENBATTERYISOUTSIDEVEHICLE.ASPARKNEARTHE  
BATTERYMAYCAUSEBATTERYEXPLOSION. TOREDUCERISKOFASPARKNEAR  
BATTERY, DO AS FOLLOWS:  
1. Check polarity of battery posts. POSITIVE (POS, P, +) battery post usually has a larger  
diameter than NEGATIVE (NEG, N, -) post.  
2. Attach at least a 24-inch-long 6-gauge (AWG) insulated battery cable to NEGATIVE  
(NEG, N, - ) battery post.  
3. Connect POSITIVE (RED) charger clip to POSITIVE (POS, P, +) post of battery.  
4. Position yourself and the free end of the 24 inch cable as far away from battery as  
possible; then connect NEGATIVE (BLACK) charger clip to free end of cable. Face away  
from battery when doing this.  
5. When disconnecting charger, always do so in reverse sequence of above procedure.  
Break first connection while as far away from battery as practical.  
6. A marine (boat) battery must be removed and charged on shore. To charge it on board  
requires equipment specially designed for marine use.  
Page3  
I. GROUNDINGANDACPOWERCORDCONNECTIONINSTRUCTIONS  
Charger should be grounded to reduce risk of electric shock. Charger is equipped with  
an electric cord having an equipment-grounding conductor and a grounding plug. The plug  
must be plugged into an outlet that is properly Installed and grounded in accordance with  
all local codes and ordinances.  
DANGER - Never alter AC cord or plug provided - if it will not fit outlet, have proper outlet  
installed by a qualified electrician. improper connection can resuIt In a risk of an electric  
shock.  
This battery charger is for use on a nominal 120-volt circuit, and has a grounding plug that  
looks like the plug Illustrated In sketch A in Figure 1. A temporary adapter, which looks like  
the adapter illustrated In sketches B and C, may be used to connect this plug to a two-pole  
receptacle as shown In sketch B If a properly grounded outlet is not available. The  
temporary adapter should be used only until a properly grounded outlet can be installed  
by a qualified electrician.  
DANGER - Before using adapter as Illustrated, be certain that center screw of outlet plate  
is grounded. The green-colored rigid ear or lug extending from adapter must be connected  
to a properly grounded outlet - make certain it is grounded. If necessary, replace original  
outlet cover plate screw with a longer screw that will secure adapter ear or lug to outlet  
cover plate and make ground connection to grounded outlet.  
FIGURE1  
GROUNDINGMETHODS  
J. OPERATIONINSTRUCTIONS  
The output supply is protected by a 30 Amp quick-blow fuse. This fuse may blow instantly  
due to short circuit of the output, reverse battery connection or excessive overloading.  
Replace only with a 30 Amp, 125/250 volt quick-blow fuse.  
K. OUTPUTVOLTAGESELECTORSWITCH  
Set output voltage selector switch to match the sum of battery voltages. Connect batteries  
in series only. Selector switch is in 12 volt steps only. Never connect an odd number of  
6 volt batteries. Two 6 volt batteries series-connected equal one 12 volt battery.  
Combinations of 6 and 12 volt batteries may be charged.  
Page4  
Selector  
Switch  
12V  
24V  
36V  
48V  
60V  
72V  
12 Volt  
Battery  
6 Volt  
Battery  
1
2
3
4
5
6
2
4
6
8
10  
12  
L. AMPSELECTORSWITCH  
The charge rate of either 5 or 10 Amp maybe selected for any selected output  
voltage.  
M. CHARGEPERIODANDTIMERSETTING  
The approximate time required to bring a battery to a fully charged state depends upon  
the number of Ampere Hours (AH) depleted from the battery. AH’s are determined by  
multiplying the number of hours times the number of Amps supplied by a battery to a load.  
For example: If a load was connected to a battery which drew 10 Amps for a period of  
4 hours, the battery will have supplied 40 AH. The approximate recharge time would then  
be calculated by dividing the 40 AH depleted from the battery, by the ampere charge rate  
of the battery charger. Add an extra 20% for tapering of the charge rate and battery  
recharge inefficiency.  
The required charge period for the above conditions would be approximately 5 hours. That  
Is, 10 Amps (depleted) x 4 (discharge period in hours) - 10 Amp (charger output rate) x  
1.20 = 4.8 hours which = 4 hours and 48 minutes.  
Another method to determine the required charge period is by means of performing a  
hydrometer test. Measure the specific gravity of the electrolyte, corrected for 80° F (26.7°  
C), of each cell.  
Two common types of hydrometers are:  
Types calibrated in terms of specific gravity (a common scale being 1.120 to 1.265) or the  
type which use four colored balls to Indicate state of charge. There are many types  
available. Read and follow the instructions that are provided with each type.  
Specific Gravity Value  
State of Charge  
Floating Balls  
1.265  
1.225  
1.190  
1.155  
1.120  
100%  
75%  
50%  
4
3
2
1
*
25%  
Discharged  
*No balls float in the barrel of the hydrometer.  
If you have a 70H rated battery, and its hydrometer reading indicates a 25% state of charge,  
then 52.5 AH are needed to bring the battery back to 100% of charge.  
(70AH - (.25 x 70)) = 52.5 AH  
Charge period would be calculated as follows.  
52.5 AH 10 (amp rate) x 1.20 (120%) = 6.3 hours or 6 hours and 18 minutes. The timer would  
-1-  
be set to 6.5 hours for this example.  
If the charge rate switch is set to 5 Amps the charge time will be twice as long.  
Indications of a fully charged battery are:  
When the ammeter indicates the charge rate has tapered to approximately one half the charger  
rated output.  
A hydrometer reading of the specific gravity of the electrolyte (fluid) of the battery in good  
condition should be between 1.250 and 1.285.  
Page5  
When A battery reaches 80-85% of full charge, bubbles will appear on the surface of the  
fluid. As the battery nears full charge, bubbling will become more noticeably vigorous.  
Disconnecting from Battery:  
Before disconnecting from battery read Instructions F, G and H carefully.  
N. STORAGE: Store battery charger in a dry area.  
P. PROBLEMCHECKLIST  
1. If no meter reading, check the following:  
a. Remove the charger power cord plug from the AC outlet and recheck the battery charger  
clips for clean, tight connections.  
b. Check voltage selector switch for proper setting.  
c. Check for voltage at the AC outlet by plugging in a lamp or other appliance.  
d. Check the fuse within the fuse holder located on the front panel.  
2. If Ammeter pointer moves to extreme right, remains a short time, then returns to  
zero, accompanied by a clicking sound, check the following:  
a. Possibly, the charger connections are reversed. (Positive to negative, instead of  
positive to positive).  
b. A severely discharged, but otherwise good battery. In this situation, the circuit  
breaker will continue to cycle and the ammeter pointer will swing from one side to the  
other, until the battery has recovered sufficiently to allow a normal charging rate.  
c. A defective battery may cause repeated circuit breaker cycling. A battery in this  
condition will not accept a charge and should be replaced.  
d. Check voltage switch for proper setting.  
3. If charging current is less than full output rating of the charger, check the follow-  
ing:  
a. Perhaps battery is partially charged.  
b. Perhaps battery is sulphated and will not accept full charge rate.  
c. Perhaps power line is providing low AC supply voltage.  
LIMITED WARRANTY  
SCHUMACHER ELECTRIC CORPORATION, 801 BUSINESS CENTER DRIVE, MT. PROSPECT,  
ILLINOIS 60056-2179 MAKES THIS LIMITED WARRANTY TO THE ORIGINAL PURCHASER AT  
RETAIL OF THIS PRODUCT THIS LIMITED WARRANTY IS NOT TRANSFERABLE.  
Schumacher Electric Corporation warrants this battery charger for two years from date of  
purchase at retail against defective material or workmanship. If such should occur, the unit will be  
repaired or replaced at the option of the manufacturer. It is the obligation of the purchaser to  
forward the unit together with proof of purchase, transportation and/or mailing charges prepaid to  
the manufacturer or its authorized representative.  
This limited warranty is void if the product is misused, subjected to careless handling, or repaired  
by anyone other than the manufacturer or its authorized representative.  
The manufacturer makes no warranty other than this limited warranty and expressly excludes  
any implied warranty including any warranty for consequential damages.  
THIS IS THE ONLY EXPRESS LIMITED WARRANTY AND THE MANUFACTURER NEITHER  
ASSUMES NOR AUTHORIZES ANYONE TO ASSUME OR MAKE ANY OTHER OBLIGATION  
TOWARDS THE PRODUCT OTHER THAN THIS EXPRESS LIMITED WARRANTY. THE MANU-  
FACTURER MAKES NO WARRANTY OF MERCHANTABILITY OR FITNESS FOR PURPOSE OF  
THIS PRODUCT AND EXPRESSLY EXCLUDES SUCH FROM THIS LIMITED WARRANTY.  
SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR  
CONSEOUENTIAL DAMAGES OR LENGTH OF IMPLIED WARRANTY SO THE ABOVE LIMITA-  
TIONS OR EXCLUSIONS MAY NOT APPLY TO YOU.  
THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS AND YOU MAY ALSO HAVE OTHER  
RIGHTS WHICH VARY FROM STATE TO STATE.  
Page6  

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