1
A. GENERAL BATTERY SAFETY
1. Before you use your battery charger, be sure to read all
instructions and cautions printed on:
 •BatteryCharger
 •Battery
 •Vehicleorunitusingbattery
2. Use battery charger on LEADACID type rechargeable
batteries only, such as used in autos, trucks, tractors,
airplanes, vans, RV's, trolling motors, etc. Charger is not
intendedtosupplypowertolow-voltageelectricalsystem
otherthaninanautomotiveapplication.
WARNING: Do not use battery charger for charging dry-cell
batteriesthatarecommonlyusedwithhomeappliances.
Thesebatteriesmayburstandcauseinjurytopersonsand
damagetoproperty.
3. Useonlyattachmentsrecommendedorsoldbymanufacturer.
Useofnon-recommendedattachmentsmayresultinre,
electricshock,orinjury.
4. When disconnecting the battery charger, pull by the plug
notbythecord.Pullingonthecordmaycausedamageto
cord or plug.
5. Locate battery power cord so it cannot be stepped on, tripped
over,orsubjectedtodamageorstress.
6. Donotoperatechargerwithdamagedcordorplug.Have
cordreplacedimmediately.
7. Do not operate charger if it has received a sharp blow, been
dropped, or otherwise damaged in anyway.Takeit to a
qualiedprofessionalforinspectionandrepair.
8. Donotdisassemblecharger.Takeittoaqualiedprofessional
whenserviceorrepairisrequired.Incorrectreassemblymay
resultinelectricshockorre.
9. Toreduceriskofelectricshock,unplugchargerfromoutlet
beforeattemptinganymaintenanceorcleaning.
10. Do not use an extension cord unless absolutely necessary.
Use of an improper extension cord could result in re or
electricshock.Ifanextensioncordmustbeused,makesure
that:
 •Pinsonplugofextensioncordarethesamenumber,size,
and shape as those of the plug on the charger.
•Extension cord is properly wired and in good electrical
condition.
 •WiresizeislargeenoughforACampereratingofcharger,
asspeciedbelow:
Length of cord (feet): 25 50 100 150
AWG size of cord: 16 12 10 8
(American Wire Gauge)
11. Always charge battery in a well ventilated area.
NEVER operate in a closed-in or restricted area without
adequate ventilation because of risk of explosive gases.
WARNING: Risk of explosive gas.
12. Locate charger as far away from battery as DC charger
cablespermit.
13. Do not expose charger to rain or snow.
14. NEVERchargeafrozenbattery.Ifbatteryuid(electrolyte)
isfrozen,bringintoawarmareatothawbeforecharging.
15. NEVER allow battery acid to drip on charger when reading
specicgravityorllingbattery.
16. NEVER set a battery on top of charger.
17. NEVER place charger directly above battery being charged.
Gasesfrombatterywillcorrodeanddamagecharger.
18. NEVER touch the battery clips together when the charger is
energized.
00-99-000757/0607

Owner's Manual

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Important Safety Instructions

WARNING:Handlingthecordonthisproductorcordsassociatedwithaccessoriesoldwiththisproduct,mayexposedyoutolead,a
chemicalknowntotheStateofCaliforniatocausecancerandbirthdefectsorotherreproductiveharm.Wash hands after handling.

Read Rules for Safe Operation and Instructions Carefully

Working in the vicinity of a lead-acid battery is dangerous. Batteries generate explosive gases during
normalbatteryoperation.Forthisreason,itisofutmostimportancethateachtimebeforeusingyour
charger,youreadthismanualandfollowtheinstructionsexactly.
Battery
Charger
Model: DY-1420