Schumacher DY-1420 F. OPERATING INSTRUCTIONS: CHARGING BATTERY IN VEHICLE, G. OPERATING INSTRUCTIONS: CHARGING BATTERY OUT OF VEHICLE

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Whenchargingbatteryinthevehicle,takecaretodeterminethebatterytypeandwhichpostisgrounded(connectedtovehiclechas-
sis).Toreduceriskofasparknearbattery,followthesestepswhenbatteryisinstalledinvehicle.WARNING: A spark near battery
may cause battery explosion.
Whenchargingbatteryoutofvehicle,takecaretodeterminethebatterytype.Toreduceriskofasparknearbattery,followthesesteps
when battery is outside vehicle. WARNING: Asparknearthebatterymaycausebatteryexplosion.WARNING: Whenremovingbattery
fromvehicleorboat,disconnectgroundedpolerst.Whendisconnecting,makesureallaccessoriesareoff,soasnottocauseanarc.
(NOTE: Amarine(boat)batterymustberemovedandchargedonshore.(Tochargeonboardrequiresspecialequipmentdesignedfor
marineuse.)WARNING: Whenreinstallingbattery,attachthegroundpostrst.
1. PositionACpowercordandDCchargingcordstoreducerisk
ofdamagebyhood,door,ormovingengineparts.
2. Stayclearoffanblades,belts,pulleys,andotherpartsthat
cancauseinjury.
3. Checkpolarityofbatteryposts.Batterycasewillbemarked
by each post: POSITIVE (POS, P, +) and NEGATIVE (NEG,
N, -). NOTE: The positive battery post usually has a larger
diameterthanthenegativepost.
4. Determine which post of battery is ground (connected) to
chassis.
NOTE: Thenegativepostisnormallygrounded.
NEGATIVE GROUNDED POST
5A.  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.Connecttoaheavy
gaugemetalpartoftheframeorengineblock.
POSITIVE GROUNDED POST
5B.  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.Connecttoaheavygauge
unpaintedmetalpartoftheframeorengineblock.
WARNING: Do not connect clip to carburetor, fuel lines, or sheet-
metalbodyparts.NOTE: Attach clips to battery post 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.
6. Selectamperage.
7. Followsteps1-4inBatteryChargerSectionK.
8. Whenthebatteryisfullycharged,unplugthechargerfrom
theACpowersource.
9. Removechargerclipsfrom(1)chassisand(2)batterypole
in that order.
10. Cleanandstorebatterycharger.
1. Checkpolarityofbatteryposts.Batterycasewillbemarked
byeachpost:POSITIVE(POS,P,+)andNEGATIVE(NEG,
N,-).NOTE: The positive battery post usually has a larger
diameterthanthenegativepost.
2. Attacha24-inchlong(orlonger)6-gauge(AWG)insulated
batterycabletoNEGATIVE(NEG,N,-)batterypost.
 (The24"leadisnotsupplied.Youmaypurchaseatmost
automotivestores.)
 The24"leadprovidesasaferconnectioncondition.Sparking
or arcing could occur when connecting the charger clip to
the lead.
3. ConnectPOSITIVE(RED)chargercliptoPOSITIVE(POS,
P,+)postofbattery.Rockclipbackandforthtomakegood
connection.
4. Position yourself and free end of 24 inch cable as far away
frombatteryaspossible.ThenconnectNEGATIVE(BLACK)
charger clip to free end of cable.
WARNING:  Do not face battery when making final
connection. Rock clip back and forth to make a good
connection.
5. Selectamperage:
6. Followsteps1-4inBatteryChargerSection.
7. When battery is fully charged, unplug charger from AC
outlet.
8. When battery is fully charged and the charger is
unplugged:
  (1) Remove clip from end of the Negative end of cable,
then
 (2)RemoveclipfromPositivebatterypost,inthatorder.
9. Cleanandstorebatterycharger.
WARNING: Be sure area around the battery is well ventilated
while battery is being charged. Gas can be forcefully blown
awaybyusingapieceofcardboardorothernon-metallic
materialasafan.
24" Cable Battery
Cable
F. OPERATING INSTRUCTIONS: CHARGING BATTERY IN VEHICLE
G. OPERATING INSTRUCTIONS: CHARGING BATTERY OUT OF VEHICLE